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Q2V Driving Quality. Technical Manual (Item code: Q2V-Axxxx-xxx, 2020) - page 12

12.1 A: INITIALIZATION

Table 12.1 Access Level and Available Keypad Screens

A1-01 [Access Level] Setting

Mode

Keypad Screen

0

1

2

3

Drive Mode

Monitors

Yes

Yes

Yes

Yes

Parameters

Yes

Yes

Yes

Yes

Manual Setup

No

Yes

Yes

Yes

Parameter Backup/Restore

No

No

Yes

Yes

Programming

Modified Parameters/Fault

No

No

Yes

Yes

Mode

Log

Auto-Tuning

No

No

Yes

Yes

Initial Setup Screen

No

No

Yes

Yes

Diagnostic Tools

No

No

Yes

Yes

Note:

• When you use A1-04 and A1-05 [Password Setting] to set a password, you cannot change the values set in A1-01 to A1-03, A1-07,or

A2-01 to A2-32.

• When H1-xx = 7C [MFDI Function Select = Prg Lock], you must activate the terminal to change parameter settings.

• When you use Modbus communications, you must send the Enter command from the controller to the drive and complete the serial

communication write process before you can use the keypad to change parameter settings.

■ A1-02: Control Method

No.

Default

Name

Description

(Hex.)

(Range)

A1-02

Control Method

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(0102)

Sets the control method for the drive application and the motor.

(0, 2, 5, 6, 8)

Note:

When you change the A1-02 setting, the parameter values specified by A1-02 are changed to their default values.

Sets the control method for the drive application and the motor.

0 : V/f Control

Use this control method in these applications and conditions:

• For general variable-speed control applications in which a high level of responsiveness or high-precision speed

control is not necessary.

• To connect more than one motor to one drive

• When there is not sufficient data to set the motor parameters

• When it is not possible to do Auto-Tuning. The speed control range is 1:40.

2 : OLVector

Use this control method for general variable-speed control applications in which high-precision speed control is

necessary. In this control method, a feedback signal from the motor is not necessary to have high torque response

and high torque when operating at low speeds. The speed control range is 1:120.

5 : PM OLVector

The drive controls an IPM motor or SPM motor in this control method. Use this control method for general

variable-speed control applications in which a high level of responsiveness or high-precision speed control are not

necessary. The speed control range is 1:20.

6 : PM AOLVector

The drive can control an IPM motor in this control method. Use this control method for general variable-speed

control applications in which high-precision speed control and torque limit are necessary. The speed control range

is 1:20. The speed control range is 1:100 when n8-57 = 1 [High-Freq Injection = Enabled].

8 : EZ Vector

The drive controls induction motors and PM motors in this control method. This control method uses an easier

procedure to operate motors with more efficiency. Use this control method for derating torque applications. For

example, fans and pumps.

12

433

12.1 A: INITIALIZATION

■ A1-03: Init Parameters

No.

Default

Name

Description

(Hex.)

(Range)

A1-03

Init Parameters

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(0103)

Sets parameters to default values.

(0 - 3330)

Note:

• After you initialize the drive, the drive automatically sets A1-03 = 0.

• User Parameters can save the parameter values for your application and use these values as default values for drive initialization.

• To use the 2 motor switchover function, first turn OFF the terminal to which H1-xx = 61 [MFDI Function Select = A1-03: Motor 2

Select] is set, then change the A1-03 setting. An incorrect procedure will trigger oPE08 [Parameter Selection Error].

0 : No Initialization

1110 : User / Solution Initialization

Sets parameters to the values set by the user as user settings. Set o2-03 = 1 [UserPar Set Default Values = Set

defaults] to save the user settings.

You can save the parameter settings that were adjusted for the test run as user-set default values to the drive.

When you make changes to the parameter values after you save the settings as User Parameter Settings, the drive

will set the parameters to the User Parameter Setting value when you initialize with A1-03 = 1110.

Follow this procedure to save User Parameter setting values, and to do a User Initialization.

1. Set parameters correctly for the application.

2. Set o2-03 = 1 [UserPar Set Default Values = Set defaults].

This saves parameter settings for a User Initialization.

The drive will then automatically set o2-03 = 0.

3. Set A1-03 = 1110 to reset to the saved parameter settings.

When you initialize the drive, the drive sets the parameter values to the User Parameter setting values.

2220 : 2-Wire Initialization

Sets MFDI terminal DI1 to Forward Run and terminal DI2 to Reverse Run, and resets all parameters to default

settings.

3330 : 3-Wire Initialization

Sets MFDI terminal DI1 to Run, terminal DI2 to Stop, and terminal DI5 to FWD/REV, and resets all parameters to

default settings.

The drive will not initialize the parameters in Table 12.2 when A1-03 = 2220, 3330.

Table 12.2 Parameters that are not Initialized Using a 2-Wire Sequence or a 3-Wire Sequence

No.

Name

No.

Name

A1-00

Language Selection

E5-09

PM BackEMF Vpeak (mV/(rad/ s))

A1-02

Control Method

E5-24

PM BackEMF L-L Vrms (mV/rpm)

A1-07

Q2pack Enable

E5-25

Polar Est Timeout

E1-03

V/f Pattern Selection

F6-08

Comm Par RST@Initialize

E5-01

PM Mot Code Selection

F6-xx/F7-xx

Communication Option Parameters

Set F6-08 = 1 [Comm Par RST@Initialize = Factory

E5-02

PM Mot Rated Power (kW)

Default - Reset] to initialize communication option

parameters.

E5-03

PM Mot Rated Current (FLA)

L8-35

Installation Selection

E5-04

PM Mot Pole Count

o2-04

Drive KVA Selection

E5-05

PM Mot Resistance (Ohms/Phase)

q1-xx - q8-xx

q1-01 to q8-40: Q2pack Parameters

E5-06

PM d-Axis Inductance (mH/Phase)

r1-xx

r1: Q2PACK JOINTS

E5-07

PM q-Axis Inductance (mH/Phase)

Note:

• When A1-03 = 2220, 3330, the drive automatically set A1-05 [Password Setting] = 0000. Make sure that you set the password again

for applications where a password is necessary.

434

12.1 A: INITIALIZATION

■ A1-04: Password Input

No.

Default

Name

Description

(Hex.)

(Range)

A1-04

Password Input

V/f

OLV OLV/PM AOLV/PM EZOLV

0000

(0104)

Entry point for the password set in A1-05 [Password Setting]. The user can view the settings of

(0000 - 9999)

parameters that are locked without entering the password. Enter the correct password in this

parameter to change parameter settings.

If the password entered in A1-04 does not agree with the password setting in A1-05, you cannot change these

parameters:

• A1-01 [Access Level]

• A1-02 [Control Method]

• A1-03 [Init Parameters]

• A1-07 [Q2pack Enable]

• A2-01 to A2-32 [MAN1 Param1 to MAN3 Param12]

To lock parameter settings after making changes without changing the password, enter the incorrect password in

A1-04 and push

Enter the Password to Unlock Parameters

Use this procedure to unlock parameter settings.

Set the password in A1-05 [Password Setting], and show the Parameter Setting Mode screen on the keypad.

This procedure verifies the password, and makes sure that the parameter settings are unlocked.

1. Push

or

to select “A: Initialization Parameters”, then push

2. Push

or

to select [A1-04], then push

You can now change parameter settings.

3. Push

or

to move the digit and enter the password.

4. Push

to confirm the password.

The drive unlocks the parameters and automatically shows the Parameters Screen.

5. Push

or

to show [A1-02], then push

The keypad shows the setting value for [A1-02].

6. Push

or

to make sure that you can change the setting value.

Push

(Back) until the keypad shows the Parameter Setup Mode screen.

■ A1-05: Password Setting

No.

Default

Name

Description

(Hex.)

(Range)

A1-05

Password Setting

V/f

OLV OLV/PM AOLV/PM EZOLV

0000

(0105)

Set the password to lock parameters and prevent changes to parameter settings. Enter the correct

(0000 - 9999)

password in A1-04 [Password Input] to unlock parameters and accept changes.

This parameter can lock these parameter settings:

• A1-01 [Access Level]

• A1-02 [Control Method]

• A1-03 [Init Parameters]

• A1-07 [Q2pack Enable]

• A2-01 to A2-32 [MAN1 Param1 to MAN3 Param12]

12

435

12.1 A: INITIALIZATION

Note:

• Usually, the keypad will not show A1-05. To show and set A1-05, show A1-04 [Password Input] and then:

-If LCD keypad is used: Push

and

at the same time.

–If LED keypad is used: Push

and

at the same time.

• After you set A1-05, the keypad will not show it again until you enter the correct password in A1-04. Make sure that you remember the

A1-05 setting value. If you do not know the A1-05 setting value, contact the manufacturer or your nearest sales representative.

• When A1-03 = 2220, 3330 [2-Wire Initialization, 3-Wire Initialization], the drive is initialized to A1-05 = 0000. Be sure to set the

password again when a password is necessary for the application.

• Change the setting value in A1-05 to change the password. The new setting value becomes the new password.

• When you use the password to unlock and change a parameter, enter a value other than the password in A1-04 to lock the parameter

again with the same password.

• If A1-04 ≠ A1-05, Modbus Communication cannot read or write A1-05.

■ A1-07: Q2pack Enable

No.

Default

Name

Description

(Hex.)

(Range)

A1-07

Q2pack Enable

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(0128)

Sets the drive to operate with Q2pack.

(0 - 2)

Q2pack is a simple visual programming tool that lets you connect function blocks to customize the drive and add

PLC functions.

Note:

• Q2pack will overwrite drive settings when it uses MFDI/MFDO and MFAI/MFAO. When you use Q2pack to make changes to the

drive, the changes will stay after you disable Q2pack.

• For more information about Q2pack, contact your nearest sales representative.

0 : Disable Q2pack

1 : Enable Q2pack

2 : With DI

Set H1-xx = 9F [MFDI Function Select = Q2pack Disable]. Deactivate the digital input to enable programs made

with Q2pack and activate the terminal to disable the programs.

■ A1-11: Firmware Update Lock

No.

Default

Name

Description

(Hex.)

(Range)

A1-11

Firmware Update Lock

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(111D)

Protects the drive firmware. When you enable the protection, you cannot update the drive

(0, 1)

firmware.

Expert

0 : Disabled

Lock is disabled.

1 : Enabled

Lock is enabled.

■ A1-12: Bluetooth ID

No.

Default

Name

Description

(Hex.)

(Range)

A1-12

Bluetooth ID

V/f

OLV OLV/PM AOLV/PM EZOLV

-

(1564)

Sets the password necessary to use Bluetooth to control the drive with a smartphone or tablet.

(0000 - 9999)

◆ A2: MANUAL SELECTION

You can register frequently used parameters and recently changed parameters here to access them quickly. Use

Setup Mode to show the saved parameters.

436

12.1 A: INITIALIZATION

■ A2-01 to A2-32: MAN1 Param1 to MAN3 Param12

No.

Default

Name

Description

(Hex.)

(Range)

A2-01 to A2-32

MAN1 Param1 to MAN3

V/f

OLV OLV/PM AOLV/PM EZOLV

Parameters in General-

Param12

Purpose Setup Mode

(0106 - 0125)

You can select a maximum of 32 parameters for the drive and save the values to parameters A2-01

to A2-32. Use Setup Mode to show the saved parameters. You can immediately access these saved

(Determined by A1-07)

parameters.

Note:

• You must set A1-01 = 1 [Access Level = Manual Setup] to access parameters A2-01 to A2-32.

• When A1-07 = 1 or 2 [Q2pack Enable = Enable Q2pack or With DI], the drive saves qx-xx [q1-01 to q8-40: Q2pack Parameters] to

A2-01 to A2-32.

The drive saves these parameters to A2-01 to A2-32.

• The drive saves a maximum of 32 parameters.

Note:

Set A1-01 = 2 [Standard Parameters] or A1-01 = 3 [Expert Parameters] to save the necessary parameters.

• The drive automatically saves changed parameters to A2-17 to A2-32.

Note:

Set A2-33 = 1 [Manual Autoset Parameters = Auto Save].

■ A2-33: Manual Autoset Parameters

No.

Default

Name

Description

(Hex.)

(Range)

A2-33

Manual Autoset Parameters

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(0126)

Sets the automatic save feature for changes to parameters A2-17 to A2-32 [MAN2 Param7 to

(0, 1)

MAN3 Param12].

0 : Manual Entry

Set User Parameters manually.

1 : Auto Save

The drive automatically registers changed parameter A2-17 to A2-32. The drive automatically saves the most

recently changed parameter to A2-17, and saves a maximum of 16 parameters. After the drive registers 16

parameters, when you save a new parameter, the drive will remove a parameter from the User Parameter list to

make space for the new parameter. The drive removes parameters with First In, First Out.

Use Setup Mode to show the saved parameters.

Note:

In General-Purpose Setup Mode, the drive saves parameters starting with A2-27 because the drive saves parameters A2-26 and lower by

default.

◆ Notes for Elevator Applications

When using the drive for elevator applications, read the safety descriptions and precautions, and safely and

correctly use the device.

■ Conditions to Open and Close the Brake

Set L4-07 = 1 [SpAgree Det.Selection = No Detect@BB] to open and close the holding brake.

When L4-07 = 2 [Always Detect], the output frequency increases when you input the Run command although the

external baseblock command is input. Because of this, speed detection operates and will open the brake signal.

• Set Related Parameters

This table shows examples of parameter settings to use the terminal DO2-O2C as the holding brake open and

close signal.

Table 12.3 Holding Brake Open and Close Signal Setting Example

Applicable Control Methods

Brake Open and Close Signal

Brake Open and Close Level Adjust

(A1-02 Settings)

V/f Control

OLVector

Signal Name

Parameter Settings

Signal Name

Parameter Settings

(0)

(2)

L4-07 = 0

SpAgree Det.Level

L4-01 = 1.0 Hz to 3.0 Hz *1

12

Frequency (FOUT) Detection 2

x

x

H2-03 = 5

SpAgree Det.Width

L4-02 = 0.0 Hz to 0.5 Hz

437

12.1 A: INITIALIZATION

*1

When A1-02 = 2 [OLVector], it is the usual setting range. When A1-02 = 0 [V/f Control], set L4-01 to the rated slip frequency of the

motor + approximately 0.5 Hz. If you set the value too low, motor torque will not be sufficient and it will cause motor rollback. Set

the parameter to agree with these conditions at the same time. If you set the value too high, it will cause overshoot at start.

• L4-01 > E1-09 [Min Output Frequency]

• L4-01 > L4-02 [Powloss Ramp Time@recovery]

*2

Use L4-02 to adjust the detection width of Frequency Detection 2. If rollback occurs when the motor stops, change the frequency to

approximately 0.1 Hz.

Figure 12.1 Frequency Detection 2

■ Sequence Circuit Configuration

Use these conditions to set the circuit for the open/close sequence of the holding brake:

• Set the sequence-side operation conditions to activate terminal DO2-O2C and open the holding brake.

• Set the sequence to close the holding brake in an emergency if the drive detects a fault.

• Set the sequence to open the holding brake when you enter an increase or decrease command.

Figure 12.2 Sequence Circuit Configuration Diagram

*1

L4-07 = 1 [SpAgree Det.Selection = No Detect@BB]

■ Time Chart

This figure shows the open and close sequence of the holding brake.

Figure 12.3 Holding Brake Open and Close Sequence Time Chart (V/f, OLV)

*1

Start braking from the higher set frequency between b2-01 [ZSpd/DCI Threshold] or E1-09 [Min Output Frequency].

438

12.1 A: INITIALIZATION

■ Notes on when Using Other Functions

Functions

Notes

Stall Prevention during Deceleration

When you connect a braking resistor to discharge the regenerative power to the drive, set L3-04 = 0 [StallP@Decel Enable =

Disabled].

Note:

If L3-04 = 1 [Enabled], it is possible that the drive will not stop in the set deceleration time. Do not change the default settings

of these related parameters:

• L3-01 = 2 [StallP Mode@Accel = General Purpose]

• L3-05 = 1 [StallP@RUN Enable = Enabled]

Auto-Tuning for Induction Motors

• When A1-02 = 2 [Control Method = OLVector], Auto-Tune the motor before you operate the drive.

• Disconnect the drive from the motor to do Rotational Auto-Tuning.

• Auto-Tuning runs automatically for approximately 1 minute. Do not do Auto-Tuning with the motor engaged in the elevator

system.

Note:

• If you cannot disconnect the motor from the machine, do Stationary Auto-Tuning. During this time, the drive automatically

measures the necessary motor data. If the motor test report or the motor nameplate is not available, use Stationary Auto-Tuning.

Do Stationary Auto-Tuning for Line-to-Line Resistance for better torque characteristics at low speeds in the V/f Control mode.

• When you do Stationary Auto-Tuning, the drive energizes the motor and the motor stays stopped.

• To Auto-Tune a specialized motor, for example a wound motor, prepare a motor test report before Auto-Tuning and make sure

that the motor parameter E2-xx is not too different than the value in the test report.

Auto-Tuning for PM Motors

You must set the motor data in the drive to run a PM motor.

• When you use a Yaskawa PM motor

Input the motor code in E5-01. E5 and other related motor parameters will be automatically set to the optimal values.

• When you use a non-Yaskawa PM motor

Do Auto-Tuning.

- When the motor nameplate or motor test report is available, enter the PM motor parameters directly with PM Motor Parameter

Settings.

- If the motor nameplate or motor test report is not available, and the motor cannot rotate, do PM Stationary Auto-Tuning.

- If the motor nameplate or motor test report is not available, and the motor can rotate, do PM Rotational Auto-Tuning.

Braking Resistor Overheat Protection

When you use a braking resistor that is not the optional Yaskawa braking resistor unit (LKEB-series), this function uses the thermal

overload relay to detect braking resistor overheat. Load a sequence program that turns OFF the drive input power supply when the

braking resistor overheats.

Note:

Refer to 42 when you load the sequence circuit.

Continuous Operation

Do not use the momentary power loss continuous operation function and the Auto Restart function. If you use these functions, there

is a risk that the motor will coast to a stop if the brake is open when there is a momentary power loss and the drive is operating or if

there is a fault.

Set the these parameters:

• L2-01 = 0 [RideThru@PwrLoss = Disabled]

• L5-01 = 0 [Auto-Reset Attempts = 0]

Torque Limit

The motor rated torque sets the value for L7-01 to L7-04 [FW Torque Limit to RV Reg. TrqLimit]. If there will not be sufficient

torque during start up, replace the drive with a larger capacity drive and set the torque limit between 200% and 300%. The L7-01 to

L7-04 default setting is 200%.

Input/Output Phase Loss Protection,

To stop a fall because of phase loss, set these parameters:

Overtorque Detection

• L8-05 = 1 [In PhaseLoss Selection = Enabled]

• L8-07 = 1 [Out PhaseLoss Selection = 1PH Loss Det]

• L6-01, L6-04 = 1 to 8 [Torque Detection Selection 1/2 = oL @ Speed Agree - Alarm only to UL @ RUN - Fault]

• L6-02, L6-05 [Trq Det1 Level, Trq Det2 Level]

• L6-03, L6-06 [Trq Det1 Time, Trq Det2 Time]

Note:

Use precautions, for example fall detection, on the machine side.

External Baseblock Command

• If you enter the external baseblock signal set in H1-01 to H1-07 = 1A or 1B [DI1 Function Selection to DI7 Function Selection =

Baseblock Command] during run, the motor immediately coasts to stop. When you enter a baseblock command while the motor is

operating, make sure that it is necessary.

• When you use an external baseblock command for the fast stop and operation start up interlocks, load the sequence to lock the

holding brake when you enter the external baseblock command.

• If you enter the external baseblock command and then immediately remove it, the drive will not output the voltage in the time set

in L2-03 [Min Baseblck Time]. Do not use an external baseblock command for applications that have frequent Run/Stop

commands.

Acceleration and Deceleration Times

If you set the acceleration and deceleration times for the drive side too short and you do not add the mechanical operation delay time

of the holding brake, the holding brake could operate late, or there could be overcurrent at start up, the brake could grind, or the

motor could roll back when it stops. In these conditions, use Dwell Reference at Start/Time and DC Injection Braking at Stop to

adjust the holding brake timing.

Electromagnetic Contactor on the Drive

Usually you must not install the electromagnetic contactor between the drive and motor. When you must install an electromagnetic

Output Side

contactor to use one drive to switchover more than one motor, follow these precautions:

• Load a sequence that opens and closes the electromagnetic contactor when these two conditions are satisfied at the same time,

unless there is an emergency:

- The holding brake is fully closed

- The drive terminals set for H2-xx = 1A or 1B [MFDO Function Select = During Baseblock] are activated

• If you open and close the electromagnetic contactor during motor control or during DC Injection Braking (or zero speed control),

the surge voltage and the motor direct input current can cause the drive to detect faults.

12

• When you use an electromagnetic contactor between the drive and motor, set L8-07 = 1 or 2 [Out PhaseLoss Selection = 1PH

Loss Det, or 2/3PH Loss Det].

439

12.1 A: INITIALIZATION

■ Adjustments Relating to Control

When there is oscillation, rollback, or other control problems, adjust the parameters as specified by the control

method.

V/f Control on page 440 shows only the frequently adjusted parameters.

Note:

Torque and speed response for high-resistance and high-slip motors are slow. Adjust the torque and speed response to increase them.

Low impedance (low-slip) motors will hunt and oscillate. Adjust the torque and speed response to increase them.

■ V/f Control

When you use V/f Control, do not use C3-01 [Slip Comp Gain].

Table 12.4 Adjustment of Drive Control (V/f Control)

Adjustment Description

Parameter Number

Possible Solutions

Default

Recommen

ded Setting

• If the torque is not sufficient with heavy loads, decrease the

Prevent hunting and oscillation at

setting.

middle-range speeds (10 Hz to 40

n1-02 [HuntPrev Gain Setting]

1.00

0.50

- 2.00

Hz)

• If there is hunting or oscillation with light loads, increase the

setting. Set n1-01 = 1 [HuntPrev Selection = Enabled].

• Increasing motor excitation

sound

• If there is a loud motor excitation sound, increase the setting value.

C6-02 [Carrier Frequency

• Hunting and oscillation

• If there is hunting or oscillation at low speeds or middle-range

*1

1-F

Selection]

suppression at low speeds and

speeds, decrease the setting value.

middle-range speeds

• Increase torque at low speeds

• If the torque is not sufficient at low speeds, increase the setting

(10 Hz or lower)

value.

C4-01 [Trq Comp Gain]

1.00

0.50

- 1.50

• Prevent hunting and

• If there is hunting or oscillation with light loads, decrease the

oscillation

setting value.

13.0 V to 16.0

E1-08 [Mid A Voltage]

15.0 V *2 *3

• If the torque is not sufficient at low speeds, increase the setting

V *3

• Increase torque at low speeds

value.

• Prevent shock during start up

E1-10 [Min Output Voltage]

• If there is a large shock during start up, decrease the setting value.

9.0 V *2 *3

7.0 V to 10.0 V

*3

*1

The default setting changes when the settings for C6-01 [ND/HD Duty Selection] and o2-04 [Drive KVA Selection] change.

*2

The default setting changes when the settings for A1-02 [Control Method] and E1-03 [V/f Pattern Selection] change.

*3

This is the setting for 200 V class drives. Multiply the voltage by 2 for 400 V class drives.

■ Open Loop Vector Control Method

Do not adjust parameter C4-01 [Trq Comp Gain]. Keep this parameter at its default setting.

If you cannot get speed accuracy during regeneration, set C3-04 = 1 [Slip Comp@Regen = Enable>6 Hz]. If you

cannot get speed accuracy at high speeds, set C3-05 = 1 [Vout Limit Selection = Enabled].

Table 12.5 Adjustment of Drive Control (Open Loop Vector Control Method)

Adjustment description

Parameter Number

Possible Solutions

Default

Recommen

ded Setting

• Torque, increase speed

response

• If torque and speed response are slow, decrease the setting value.

• Prevent hunting and

n2-01 [AFR Gain]

1.00

0.50

- 2.00

• If there is hunting or oscillation, increase the setting value.

oscillation at middle-range

speeds (10 Hz to 40 Hz)

• Torque, increase speed

response

• If torque and speed response are slow, decrease the setting value.

20 ms to 100

C4-02 [Trq Comp Delay Time] *1

20 ms

• Prevent hunting and

• If there is hunting or oscillation, increase the setting value.

ms

oscillation

• Increase speed response

• When speed response is slow, decrease the setting value.

100 ms to 500

C3-02 [Slip Comp Delay Time]

200 ms

• Increase speed stability

• If speed is not stable, increase the setting value.

ms

• If speed is too slow, increase the setting value.

• Improve speed accuracy

C3-01 [Slip Comp Gain]

1.0

0.5

- 1.5

• If speed is too fast, decrease the setting value.

• Increasing motor excitation

sound

• If there is a loud motor excitation sound, increase the setting value.

C6-02 [Carrier Frequency

• Prevent hunting and

• If there is hunting or oscillation at low speeds, decrease the setting

*2

1-F

Selection]

oscillation at low-range speeds

value.

(10 Hz to or lower)

12.0 V to 13.0

• Increase torque and speed

E1-08 [Mid A Voltage]

• If the torque and speed response are slow, increase the setting

11.0 V *3

V *3

response at low speeds

value.

• Prevent shock during start up

• If there is a large shock during start up, decrease the setting value.

2.0 V to 3.0 V

E1-10 [Min Output Voltage]

2.0 V *3

*3

*1

If the value for C4-02 [Trq Comp Delay Time] is high, the current can increase during start up. Adjust and check the current during

start up.

440

12.1 A: INITIALIZATION

*2

The default setting changes when the settings for C6-01 [ND/HD Duty Selection] and o2-04 [Drive KVA Selection] change.

*3

This is the setting for 200 V class drives. Multiply the voltage by 2 for 400 V class drives.

■ Elevator Start/Stop and Accel/Decel Time Shock Reduction

Shock when you start and stop the elevator and when you accelerate and decelerate is an issue for passenger

elevator applications. If shock has an effect on the quality of the ride, adjust these parameters:

■ S-Curve Characteristics, Accel & Decel Time

Adjustment Parameter

Name

C1-01, C1-03, C1-05, C1-07

Accel Time 1 to Accel Time 4

C1-02, C1-04, C1-06, C1-08

Decel Time 1 to Decel Time 4

C2-01

Jerk@Start of Accel

C2-02

Jerk@End of Accel

C2-03

Jerk@Start of Decel

C2-04

Jerk@End of Decel

Figure 12.4 S-curve Characteristics, Accel & Decel Time

Note:

• When decreased operation times are necessary for the application, for example with cranes and hoists, do not use S-curve characteristic

times.

• The default setting for C2-04 [Jerk@End of Decel] will be 0.00 seconds. The default setting for other S-curve characteristics will be

0.20 seconds. Set the acceleration/deceleration times and S-curve characteristic time correctly for acceleration/deceleration start up and

end. The recommended setting of the S-curve characteristics time is 0.2 to 1.0 seconds.

• When you use the C1-11 [Ac/Dec Switch Frequency], you can switch the acceleration/deceleration rate automatically during

acceleration/deceleration. The default setting is disabled.

When the Output Frequency ≥ C1-11, operate at the acceleration and deceleration times set in C1-01 and C1-02

When the Output Frequency < C1-11, operate at the acceleration and deceleration times set in C1-07 and C1-08

• During low speed operation, if the Output Frequency < E1-09 [Min Output Frequency] in the S-Curve Time @ Start of Decel, the

drive will cancel the S-curve characteristics and do DC Inject Braking at Stop.

■ Dwell Function at Start

Adjustment Parameter

Name

b6-01

Dwell Ref.@Start

b6-02

Dwell Time@Start

H2-xx = 14

FreqDetect 2

Figure 12.5 Dwell Function at Start

12

441

12.1 A: INITIALIZATION

Note:

• If the mechanical operation of the holding brake is slow, use the Dwell Function at Start to prevent brake grinding (friction). Accelerate

after the brake is fully open.

• When you use V/f Control or Open Loop Vector Control, set b6-01 [Dwell Ref.@Start] > Frequency Detection 2 (brake open

frequency).

• If the motor torque is not sufficient during start up, use the DC Inject Braking function to secure the motor current (torque) before you

start the motor.

-b2-02 [DCI Braking Current] recommended setting: 50% to 75% (V/f Control, Open Loop Vector Control)

-b2-03 [DCInj Time@Start] recommended setting: 0.2 s to 0.5 s

■ DC Injection Braking at Stop Function

Note:

If you disconnect a drive from a motor when it is controlling the motor or during DC Injection Braking (Zero speed level), a voltage

surge can trigger a drive fault. When you use an electromagnetic contactor between the drive and motor, set L8-07 = 1 or 2 [Out

PhaseLoss Selection = 1PH Loss Det, or 2/3PH Loss Det]. If it necessary to disconnect the motor and drive when you stop the elevator,

fully close the holding brake and disconnect the drive while the Baseblock signal is ON. This does not apply for emergency conditions.

Adjustment Parameter

Name

b2-01

ZSpd/DCI Threshold

b2-02

DCI Braking Current

b2-04

DCInj Time@Stop

H2-xx = 5

FreqDetect 2

Figure 12.6 DC Injection Braking at Stop Function

Note:

• If the mechanical operation of the holding brake is slow, use DC Injection Braking until the brake is fully closed to prevent rollback.

• If you cannot hold the load with DC Injection Braking when it is stopped in V/f Control and Open Loop Vector Control modes, use

Dwell Function at Stop.

-b6-03 [Dwell Ref@Stop]: Minimum output frequency to 3.0 Hz

When Frequency Detection 2 is OFF, it is less than L4-01 [SpAgree Det.Level] - L4-02 [SpAgree Det.Width].

-b6-04 [Dwell Time@Stop] recommended setting: 0.3 s to 0.5 s

-b2-04 [DCInj Time@Stop] recommended setting: 0.0 s

■ Analog Input FilterTime Constant

When b1-01 = 1 [Freq. Ref. Sel. 1 = Analog Input], it adds noise to the analog frequency reference during run.

• Minimize the effects of noise.

• Change H3-13 [An.In FilterTime Constant] to a range of 0.01 s to 0.10 s.

■ Startup Current Check

When you do a test run, set L8-41 =1 [HCA alarm Selection = Enabled] and use U4-13 [Peak Hold Current] and

a clamp ammeter with the machine under load and not under load to check the motor current during start up.

If the motor torque is not sufficient during start up or if the timing between the motor and the holding brake is

unsatisfactory and causes the motor to lock, a large quantity of current will flow. In these conditions, adjust the

parameters again and decrease the load to decrease the current to less than 150%. If the current flow is more than

150% of the drive rated current, the heat stress on the IGBTs will decrease the service life of drive parts.

To decrease the effects of heat stress, decrease the carrier frequency of the drive to 2.0 kHz to 2.5 kHz for

applications where low audible noise is not necessary.

■ Overvoltage Suppression Function

If the overvoltage suppression function is used in elevator type applications, there is a risk of rollback and falls.

Set L3-11 = 0 [Overvolt Supression Select = Disabled].

442

12.2 b: APPLICATION

12.2

b: APPLICATION

b parameters set these functions:

• Frequency reference source/Run command source

• Stopping method settings

• DC Injection Braking

• Speed Search

• Timer Function

• PID control

• Dwell function

• Energy-Saving Control

◆ b1: OPERATION MODE SELECT

b1 parameters set the operation mode for the drive.

■ b1-01: Freq. Ref. Sel. 1

No.

Default

Name

Description

(Hex.)

(Setting Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b1-01

Freq. Ref. Sel. 1

1

(0180)

Sets the input method for the frequency reference.

(0 - 4)

Note:

• Push

on the keypad to set the input mode to LOCAL and use the keypad to enter the frequency reference.

• If the frequency reference is 0 Hz or less than the value set in E1-09 [Min Output Frequency] and the drive receives the Run command,

the RUN LED on the keypad will flash. Examine the setting for the frequency reference input and enter a value ≥ E1-09.

0 : Keypad

Use the keypad to enter the frequency reference.

Use

and

on the keypad to change the frequency reference.

1 : Analog Input

Use MFAI terminals AI1 and AI2 to input an analog frequency reference with a voltage or current input signal.

• Voltage Input

Refer to Table 12.6 to use a voltage signal input to one of the MFAI terminals.

Table 12.6 Frequency Reference Voltage Input

Parameter Settings

Terminal Signal

Terminal

Note

Level

Signal Level

Function Selection

Gain

Bias

Selection

AI1

0 - 10 V (Lower Limit

H3-01 = 0

H3-02 = 4

H3-03

H3-04

at 0)

[Freq Ref/BIAS]

-

0 - 10 V (Bipolar

H3-01 = 1

Reference)

AI2

0 - 10 V (Lower Limit

H3-01 = 0

H3-10 = 4

H3-11

H3-12

Set DIP switch S1 to “V” for

at 0)

voltage input.

[Freq Ref/BIAS]

0 - 10 V (Bipolar

H3-01 = 1

Reference)

444

12.2 b: APPLICATION

Figure 12.7 Example of Setting the Frequency Reference with a Voltage Signal to Terminal AI1

Note:

You can also use this diagram to wire terminal AI2.

• Current Input

Refer to Table 12.7 to use a current signal input to one of the MFAI terminals.

Table 12.7 Frequency Reference Current Input

Parameter Settings

Terminal

Signal Level

Note

Signal Level

Function Selection

Gain

Bias

Selection

A2

4 - 20 mA

H3-09 = 2

H3-10 = 4

H3-11

H3-12

Set DIP switch S1 to “I” for

current input.

[Freq Ref/BIAS]

0 - 20 mA

H3-09 = 3

Figure 12.8 Example of Setting the Frequency Reference with a Current Signal to Terminal AI2

Changing between Master and Auxiliary Frequency References

Use the multi-step speed reference function to change the frequency reference input between terminals AI1 and

AI2.

2 : Modbus

Use Modbus communications to enter the frequency reference.

3 : Option PCB

Use a communications option connected to the drive to enter the Run command.

Refer to the instruction manual included with the option to install and set the option.

Note:

If b1-01 = 3 but you did not connect an option, oPE05 [Run Cmd/Freq Ref Source Sel Err] will flash on the keypad.

4 : Pulse Train Input

Use a pulse train signal from the pulse train input terminal PI to enter the frequency reference.

12

Do this procedure to make sure that the pulse train signal is operating correctly.

1. Set b1-01 = 4, H6-01 = 0 [PI Pulse Train Function = Freq Ref].

445

12.2 b: APPLICATION

2. Set H6-02 [PI Frequency Scale] to the number of pulses that determine 100% of the frequency reference.

3. Enter a pulse train signal on the terminal PI and make sure that the keypad shows a correct frequency

reference.

■ b1-02: Run Comm. Sel 1

No.

Default

Name

Description

(Hex.)

(Range)

b1-02

Run Comm. Sel 1

V/f

OLV OLV/PM AOLV/PM EZOLV

1

(0181)

Sets the input method for the Run command.

(0 - 3)

0 : Keypad

Use the keypad to enter the Run command.

You can use the JOG operation or the FWD/REV commands from the keypad.

Note:

The

on the keypad is on while keypad is the Run command source.

1 : Analog Input

Use the control circuit terminals to enter the Run command. Select the input method for the Run command with

an H1-xx parameter.

Set H1-xx = 1 to 5 [Forward Run to 3-Wire Seq.]. The default setting is 2-wire sequence 1.

•

2-wire Sequence 1

This sequence has two input types: FWD/Stop and REV/Stop. Set A1-03 = 2220 [Init Parameters = 2-Wire

Initialization] to initialize the drive and set terminals DI1 and DI2 for a 2-wire sequence.

•

2-wire Sequence 2

This sequence has two input types: Run/Stop and FWD/REV.

•

3-Wire Sequence (3-Wire Seq.)

This sequence has three input types: Run, Stop, and FWD/REV. Set A1-03 = 3330 [Init Parameters = 3-Wire

Initialization] to initialize the drive and set terminals DI1, DI2, and DI5 for a 3-wire sequence.

2 : Modbus

Use Modbus communications to enter the Run command.

3 : Option PCB

Use a communications option card or input option card connected to the drive to enter the Run command.

Refer to the instruction manual included with the option card to install and set the option card.

Note:

If b1-02 = 3 but no connected option card, then oPE05 [Run Cmd/Freq Ref Source Sel Err] will flash on the keypad.

■ b1-03: Stopping Method Selection

No.

Default

Name

Description

(Hex.)

(Range)

b1-03

Stopping Method Selection

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(0182)

Sets the method to stop the motor after removing a Run command or entering a Stop command.

(0 - 3, 9)

Note:

When A1-02 = 5, 6, 8 [Control Method = PM OLVector, PM AOLVector, EZ Vector], the setting range is 0, 1, 3.

Select the applicable stopping method for the application from these four options:

0 : Ramp->Stop

When you enter the Stop command or turn OFF the Run command, the drive ramps the motor to stop.

The drive ramps the motor to stop as specified by the deceleration time. The default setting for the deceleration

time is C1-02 [Decel Time 1]. The actual deceleration time changes as the load conditions change (for example,

mechanical loss and inertia).

If the output frequency is less than or equal to the value set in b2-01 [ZSpd/DCI Threshold] during deceleration,

the drive will do DC Injection Braking, Zero Speed Control, or Short Circuit Braking, as specified by the control

method.

• Ramp to Stop with V/f Control and OLV Control Methods

Parameter b2-01 sets the frequency to start DC Injection Braking at stop. If the output frequency is less than or

equal to the value set in b2-01 during deceleration, then the drive will perform DC Injection Braking for the

time set in b2-04 [DCInj Time@Stop].

446

12.2 b: APPLICATION

Figure 12.9 Ramp to Stop with V/f and OLV Control Methods

Note:

When b2-01 ≤ E1-09 [Min Output Frequency], the drive will start DC Injection Braking from the frequency set in E1-09.

• Ramp to Stop with OLV/PM, AOLV/PM, and EZOLV Control Methods

Parameter b2-01 sets the frequency to start Short Circuit Braking. When the output frequency is less than or

equal to the value set in b2-01 during deceleration, then the drive will do Short Circuit Braking for the time set

in b2-13 [SCB Time@Stop]. When b2-04 ≠ 0, the drive will do DC Injection Braking for the time set in b2-04

when Short Circuit Braking is complete.

Figure 12.10 Ramp to Stop with OLV/PM, AOLV/PM, and EZOLV Control Methods

Note:

When b2-01 ≤ E1-09, the drive will start Short Circuit Braking from the frequency set in E1-09.

If b2-01 = 0 Hz and E1-09 = 0 Hz, the drive will not do Short Circuit Braking.

1 : Coast->Stop

When you enter the Stop command or turn OFF the Run command, the drive turns OFF the output and coasts the

motor to stop.

Load conditions will have an effect on the deceleration rate as the motor coasts to stop (for example, mechanical

loss and inertia).

Figure 12.11 Coast to Stop

Note:

When you enter the Stop command or turn OFF the Run command, the drive ignores the Run command for the time set in L2-03 [Min

Baseblck Time]. Do not enter the Run command until the motor comes to a complete stop. Use DC Injection or Speed Search to restart

the motor before it stops.

2 : DC Inj->Stop

When you enter the Stop command or turn OFF the Run command, the drive turns OFF the output for the time set

in L2-03. The drive waits for the minimum baseblock time and then injects the amount of DC current into the

motor set in b2-02 [DCI Braking Current] to stop the motor with DC current.

DC Injection Braking stops the motor more quickly than coast to stop.

Note:

12

If A1-02 = 5, 6, DC Injection Braking to Stop is not available.

447

12.2 b: APPLICATION

Figure 12.12 DC Injection Braking to Stop

The value set in b2-04 and the output frequency when the drive receives the Stop command determine the DC

Injection Braking time. The drive calculates the DC Injection Braking time as in Figure 12.13.

Figure 12.13 DC Injection Braking Time and Output Frequency

Note:

Set L2-03 to a high value that will not trigger oC [Overcurrent] when the drive uses DC Injection Braking to stop the motor.

3 : Timed Coast->Stop

Enter the Stop command or turn OFF the Run command and turn OFF drive output and coast the motor to stop.

The drive ignores the Run command until the “Run wait time t” is expired.

To start the drive again, wait until the the “Run wait time t” is expired then enter the Run command.

Figure 12.14 Coast to Stop with Timer

The active deceleration time and the output frequency when drive receives the Stop command determine the

length of “Run wait time t”.

448

12.2 b: APPLICATION

■ b1-06: Double Scan DI Inputs Select

No.

Default

Name

Description

(Hex.)

(Range)

b1-06

Double Scan DI Inputs

V/f

OLV OLV/PM AOLV/PM EZOLV

2

Select

(0185)

Sets the number of times that the drive reads the sequence input command to prevent malfunction

(1, 2)

because of noise.

1 : Single Scan

The drive reads the terminal status one time. The drive immediately reads all changes to the terminal status.

This setting lets the drive quickly respond to changes in the sequence, but noise can cause malfunction.

2 : Double Scan

The drive reads the terminal status two times. The drive reads all changes to the terminal status two times to make

sure that the reading is the same.

The drive responds slower than when it reads the sequence one time, but this setting prevents malfunction because

of noise.

■ b1-07: LO/RE Run Selection

No.

Default

Name

Description

(Hex.)

(Range)

b1-07

LO/RE Run Selection

V/f

OLV OLV/PM AOLV/PM EZOLV

1

(0186)

Sets drive response to an existing Run command when the drive receives a second Run command

(1, 2)

from a different location.

This parameter interlocks the drive to help prevent accidents that can occur if the motor starts to rotate because the

Run command source changed.

To switch the RUN command source, push

on the keypad or set H1-xx = 11, 9 [MFDI Function Select =

LOC/REM Sel., Ext Ref 1/2] and activate/deactivate the terminal.

1 : Cycle RUN

If a Run command is enabled when you switch between Run command sources, the drive will not operate the

motor.

When the drive is operating the motor, turn OFF the Run command to stop the motor. Enter the Run command

again to start operation.

2 : Accept RUN

If a Run command is enabled when you switch between Run command sources, the drive will start to operate the

motor or continue to operate the motor.

WARNING! Sudden Movement Hazard. When you use a 3-Wire sequence, set A1-03 = 3330 [Init Parameters = 3-Wire

Initialization] and make sure that b1-17 = 1 [RUN@PowerUp Selection = Disregard RUN] (default). If you do not correctly set

the drive parameters for 3-Wire operation before you energize the drive, the motor can suddenly rotate in reverse when you

energize the drive.

■ b1-08: RUN@PRG Mode Selection

No.

Default

Name

Description

(Hex.)

(Range)

b1-08

RUN@PRG Mode

V/f

OLV OLV/PM AOLV/PM EZOLV

1

Selection

(0187)

Sets the conditions for the drive to accept a Run command entered from an external source when

(1 - 3)

using the keypad to set parameters.

As a safety precaution, when the drive is in Programming Mode, it will not respond to a Run command.

This parameter helps prevent accidents that can occur if the motor starts to rotate because the drive received a Run

command from an external source while the user is programming the drive. You can also set the drive to not show

the Programming Mode when a Run command is active.

1 : NoRUN@Program

The drive rejects the Run command while in Programming Mode.

2 : RUN@Program

The drive accepts a Run command entered from an external source while in Programming Mode.

3 : Program@Stop only

The drive does not let the user enter Programming Mode when the drive is operating. The drive does not show the

Programming Mode when a Run command is active.

450

12.2 b: APPLICATION

■ b1-14: Phase Order Selection

No.

Default

Name

Description

(Hex.)

(Range)

b1-14

Phase Order Selection

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(01C3)

Sets the phase order for output terminals U/T1, V/T2, and W/T3. This parameter can align the

(0, 1)

Forward Run command from the drive and the forward direction of the motor without changing

wiring.

0 : Standard

1 : Phase Order Switch

■ b1-15: Freq. Ref. Sel. 2

No.

Default

Name

Description

(Hex.)

(Range)

b1-15

Freq. Ref. Sel. 2

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(01C4)

Sets the input method for frequency reference 2.

(0 - 4)

This parameter is enabled when H1-xx = 9 [MFDI Function Select = Ext Ref 1/2] is activated.

Note:

• Push

on the keypad to set the input mode to LOCAL and use the keypad to enter the frequency reference.

• If the frequency reference is 0 Hz or less than or equal to the value set in E1-09 [Min Output Frequency] and the drive receives the Run

command, the RUN LED on the keypad will flash. Examine the setting for the frequency reference input and enter a value more than

or equal to E1-09.

0 : Keypad

Use the keypad to enter the frequency reference.

Use

and

on the keypad to change the frequency reference.

1 : Analog Input

Use MFAI terminals AI1 and AI2 to input an analog frequency reference with a voltage or current input signal.

• Voltage Input

Refer to Table 12.8 to use a voltage signal input to one of the MFAI terminals.

Table 12.8 Frequency Reference Voltage Input

Parameter Settings

Terminal Signal

Terminal

Note

Level

Signal Level

Function Selection

Gain

Bias

Selection

AI1

0 - 10 V (Lower Limit

H3-01 = 0

H3-02 = 4

H3-03

H3-04

at 0)

[Freq Ref/BIAS]

-

0 - 10 V (Without

H3-01 = 1

Lower Limit)

AI2

0 - 10 V (Lower Limit

H3-01 = 0

H3-10 = 4

H3-11

H3-12

Set DIP switch S1 to “V” for

at 0)

voltage input.

[Freq Ref/BIAS]

0 - 10 V (Without

H3-01 = 1

Lower Limit)

12

Figure 12.17 Example of Setting the Frequency Reference with a Voltage Signal to Terminal AI1

451

12.2 b: APPLICATION

Note:

You can also use this diagram to wire terminal AI2.

• Current Input

Refer to Table 12.9 to use a current signal input to one of the MFAI terminals.

Table 12.9 Frequency Reference Current Input

Parameter Settings

Terminal

Signal Level

Note

Signal Level

Function Selection

Gain

Bias

Selection

AI2

4 - 20 mA

H3-09 = 2

H3-10 = 4

H3-11

H3-12

Set DIP switch S1 to

“I” for current input.

[Freq Ref/BIAS]

0 - 20 mA

H3-09 = 3

Figure 12.18 Example of Setting the Frequency Reference with a Current Signal to Terminal AI2

Changing between Master and Auxiliary Frequency References

Use the multi-step speed reference function to change the frequency reference input between terminals AI1 and

AI2.

2 : Modbus

Use Modbus communications to enter the frequency reference.

3 : Option PCB

Use a communications option card connected to the drive to enter the Run command.

Refer to the instruction manual included with the option card to install and set the option card.

Note:

If you set b1-15 = 3 but you do not connect an option card, oPE03 [Multi-Function Input Setting Err] will flash on the keypad.

4 : Pulse Train Input

Use a pulse train signal from the pulse train input terminal PI to enter the frequency reference.

Do this procedure to make sure that the pulse train signal is operating correctly.

1. Set b1-15 = 4, H6-01 = 0 [PI Pulse Train Function = Freq Ref].

2. Set H6-02 [PI Frequency Scale] to the number of pulses that determine 100% of the frequency reference.

3. The terminal set in H1-xx = 9 [MFDI Function Select = Ext Ref 1/2] is activated.

4. Enter a pulse train signal on the terminal PI and make sure that the keypad shows a correct frequency

reference.

■ b1-16: Run Comm. Sel 2

No.

Default

Name

Description

(Hex.)

(Range)

b1-16

Run Comm. Sel 2

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(01C5)

Sets the input method for Run Command 2 when the user switches the control circuit terminals

(0 - 3)

ON/OFF to change the Run command source.

Activate H1-xx = 2 [MFDI Function Select = External Reference 1/2 Selection] to enable this parameter.

0 : Keypad

Use the keypad to enter the Run command.

You can use the JOG operation or the FWD/REV commands from the keypad.

452

12.2 b: APPLICATION

Note:

The

is on while the keypad is the Run command source.

1 : Analog Input

Use the control circuit terminals to enter the Run command. Select the input method for the Run command with

an H1-xx parameter.

Set H1-xx = 1 to 5 [Forward Run to FWD/REV Cmd, 3-Wire Seq.]. The default setting is 2-wire sequence 1.

•

2-wire Sequence 1

This sequence has two input types: FWD/Stop and REV/Stop. Set A1-03 = 2220 [Init Parameters = 2-Wire

Initialization] to initialize the drive and set terminals DI1 and DI2 for a 2-wire sequence.

•

2-wire Sequence 2

This sequence has two input types: Run/Stop and FWD/REV.

•

3-Wire Sequence

This sequence has three input types: Run, Stop, and FWD/REV. Set A1-03 = 3330 [Init Parameters = 3-Wire

Initialization] to initialize the drive and set terminals DI1, DI2, and DI5 for a 3-wire sequence.

2 : Modbus

Use Modbus communications to enter the Run command.

3 : Option PCB

Use a communications option card or input option card connected to the drive to enter the Run command.

Refer to the instruction manual included with the option card to install and set the option card.

Note:

If b1-16 = 3 but no option card is connected, then oPE03 [Multi-Function Input Setting Err] will flash on the keypad.

■ b1-17: RUN@PowerUp Selection

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b1-17

RUN@PowerUp Selection

1

(01C6)

Sets drive response when energizing a drive that has an external Run command. Set this

(1, 2)

parameter in applications where energizing or de-energizing the drive enables the Run command.

1 : Disregard RUN

The drive does not start to operate the application when the power is switched ON, even when there is an existing

Run command.

Enter the Run command again to operate the application.

Note:

When you energize the drive,

on the keypad will flash quickly if the Run command is already enabled from an external source.

2 : Accept RUN

When there is an existing Run command, the drive starts to operate the application when the power is switched

ON.

WARNING! Sudden Movement Hazard. When you use a 3-Wire sequence, set A1-03 = 3330 [Init Parameters = 3-Wire

Initialization] and make sure that b1-17 = 1 [RUN@PowerUp Selection = Disregard RUN] (default). If you do not correctly set

the drive parameters for 3-Wire operation before you energize the drive, the motor can suddenly rotate in reverse when you

energize the drive.

■ b1-35: DI Deadband Time

No.

Default

Name

Description

(Hex.)

(Range)

b1-35

DI Deadband Time

V/f

OLV OLV/PM AOLV/PM EZOLV

0.0 ms

(1117)

Sets the deadband time for MFDIs.

(0.0 to 100.0 ms)

Expert

When the on/off time for MFDIs is longer than the time set in b1-35, the drive activates the MFDI. Set this

parameter to prevent malfunctions caused by relay chattering for applications in which relays send input to MFDI

terminals.

12

453

12.2 b: APPLICATION

◆ b2: DC INJ / SHORT CKT BRAKE

b2 parameters set the DC Injection Braking and Short Circuit Braking functions.

• DC Injection Braking: A braking method that injects DC current into the motor windings. This function should

not be used too frequently, because it generates a fair amount of heat in the motor.

• Short Circuit Braking: A braking method for PM motors.

■ b2-01: ZSpd/DCI Threshold

No.

Default

Name

Description

(Hex.)

(Range)

b2-01

ZSpd/DCI Threshold

V/f

OLV OLV/PM AOLV/PM EZOLV

Determined by A1-02

(0189)

Sets the frequency to start DC Injection Braking or Short Circuit Braking.

(0.0 - 10.0 Hz)

Note:

This parameter is available when b1-03 = 0 [Stopping Method Selection = Ramp->Stop].

When the control method selected in A1-02 [Control Method] changes, the b2-01 function changes.

Parameter Settings

Functions of b2-01

A1-02 = 0, 2 [V/f Control or OLVector]

Parameter b2-01 sets the frequency to start DC Injection Braking at stop. When the output frequency is less than or

equal to the value set in b2-01, the drive will inject the quantity of DC current set in b2-02 [DCI Braking Current] into

the motor for the time set in b2-04 [DC Inject Braking Time at Stop].

Figure 12.19 DC Injection Braking at Stop

Note:

When b2-01 ≤ E1-09 [Min Output Frequency], the drive will start DC Injection Braking from the frequency set in

E1-09.

A1-02 = 5, 6, or 8 [PM OLVector, PM AOLVector, or EZ

Parameter b2-01 sets the frequency to start for Short Circuit Braking at stop. When the output frequency is less than or

Vector]

equal to the value set in b2-01, the drive will do Short Circuit Braking for the time set in b2-13 [SCB Time@Stop].

When b2-04 > 0.00 s, the drive will complete Short Circuit Braking, then do DC Injection Braking for the time set in

b2-04.

Figure 12.20 Short Circuit Braking at Stop

Note:

When b2-01 ≤ E1-09, the drive will start Short Circuit Braking from the frequency set in E1-09. If b2-01 and E1-

09 = 0 Hz, the drive will not do Short Circuit Braking.

■ b2-02: DCI Braking Current

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b2-02

DCI Braking Current

50%

(018A)

Sets the DC Injection Braking current as a percentage of the drive rated current.

(0 - 75%)

When the DC Injection Braking current is more than 50%, the drive decreases the carrier frequency to 1 kHz. The

motor rated current determines how much DC Injection Braking current that the drive can use.

454

12.2 b: APPLICATION

The DC Injection Braking current level has an effect on the strength of the magnetic field that locks the motor

shaft. As the current level increases, the motor windings will supply more heat. Do not set this parameter higher

than the level that is necessary to hold the motor shaft.

■ b2-03: DCInj Time@Start

No.

Default

Name

Description

(Hex.)

(Range)

b2-03

DCInj Time@Start

V/f

OLV OLV/PM AOLV/PM EZOLV

0.00 s

(018B)

Sets the DC Injection Braking Time at stop.

(0.00 - 10.00 s)

This function stops then restarts a coasting motor and increases motor flux to make high starting torque (a process

called initial excitation). Set this parameter to 0.00 to disable the function.

Note:

To restart a coasting motor, use DC Injection Braking to stop and then restart the motor, or enable Speed Search. Enable DC Injection

Braking or Speed Search to prevent ov [Overvoltage] or oC [Overcurrent] faults.

■ b2-04: DCInj Time@Stop

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b2-04

DCInj Time@Stop

Determined by A1-02

(018C)

Sets the DC Injection Braking Time at stop.

(0.00 - 10.00 s)

This function fully stops a motor with a large inertia during deceleration and will not let the inertia continue to

rotate the motor.

Set this parameter to 0.00 to disable the function.

When a longer time is required to stop the motor, increase the value.

■ b2-08: MagFlux Comp Value

No.

Default

Name

Description

(Hex.)

(Range)

b2-08

MagFlux Comp Value

V/f

OLV OLV/PM AOLV/PM EZOLV

0%

(0190)

Sets how much current the drive injects when DC Injection Braking at Start starts (Initial

(0 - 1000%)

Excitation) as a percentage of E2-03 [Mot No-Load Current].

This parameter is effective when you start a high-capacity motor (a motor with a large secondary circuit time

constant). This function can quickly increase motor flux to make high starting torque (a process called initial

excitation).

The current level for DC Injection Braking at start changes linearly from the setting of b2-08 to the setting of b2-

03 as shown in Figure 12.21.

Figure 12.21 DC Current Level during DC Injection Braking at Start

Note:

• If b2-08 < 100%, flux will develop very slowly.

• When b2-08 = 0%, the DC current level will be the DC Injection current set in b2-02 [DCI Braking Current].

• If b2-08 is set too high, DC Injection Braking at start can cause a large noise. Adjust b2-08 to decrease the volume to the permitted

level.

12

455

12.2 b: APPLICATION

■ b2-12: SCB Time@Start

No.

Default

Name

Description

(Hex.)

(Range)

b2-12

SCB Time@Start

V/f

OLV OLV/PM AOLV/PM EZOLV

0.00 s

(01BA)

Sets the Short Circuit Braking time at start.

(0.00 - 25.50 s)

This function stops and restarts a coasting PM motor. The drive short circuits all the three motor phases to make

braking torque in the motor.

Set this parameter to 0.00 to disable the function.

Note:

• Short circuit Braking will let external forces rotate the PM motor. Use DC Injection Braking to prevent motor rotation from external

forces.

• Motor speed and load conditions can make it necessary to install a dynamic braking option on the drive.

■ b2-13: SCB Time@Stop

No.

Default

Name

Description

(Hex.)

(Range)

b2-13

SCB Time@Stop

V/f

OLV OLV/PM AOLV/PM EZOLV

A1-02 = 8: 0.00 s

(01BB)

Sets the Short Circuit Braking time at stop.

Other than A1-02 = 8: 0.50

s

(0.00 - 25.50 s)

This function fully stops a PM motor with a large inertia during deceleration and will not let the inertia continue to

rotate the motor.

Short Circuit Braking operates for the time set in b2-13 when output frequency is less than the value set in b2-01

[ZSpd/DCI Threshold] or E1-09 [Min Output Frequency].

Set this parameter to 0.00 to disable the function.

Note:

Motor speed and load conditions can make it necessary to install a dynamic braking option on the drive.

■ b2-18: SCB Current

No.

Default

Name

Description

(Hex.)

(Range)

b2-18

SCB Current

V/f

OLV OLV/PM AOLV/PM EZOLV

100.0%

(0177)

Sets the Short Circuit Braking Current as a percentage of the motor rated current.

(0.0

- 200.0%)

The Short Circuit Braking current cannot be higher than the drive rated current, although a higher current level

can be set using b2-18. The maximum rated current is 120% when the drive is set for Normal Duty (C6-01 = 1

[ND Rating]). The maximum rated current is 150% when the drive is set for Heavy Duty (C6-01 = 0 [HD

Rating]).

◆ b3: SPEED SEARCH

The Speed Search function detects the actual speed of a coasting motor, then restarts the motor before the motor

stops.

Use Speed Search in these conditions:

• To continue operation after momentary power loss

• To switch from commercial power supply to drive power

• To restart a coasting fan

For example, the drive output turns off and the motor coasts when there is a momentary loss of power. After you

return power, the drive does Speed Search on the coasting motor, and restarts the motor from the detected speed.

When you use a PM motor, enable b3-01 [SpSrch@Start Selection].

There are two types of Speed Search for induction motors: Current Detection and Speed Estimation. Use

parameter b3-24 [SpSrch Method Selection] to select the type of Speed Search.

Parameter settings are different for different types of Speed Search. Refer to Table 12.10 for more information.

456

12.2 b: APPLICATION

Table

12.10

Speed Search and Related Parameters

Speed Estimation

Current Detection 2

Parameter

b3-24 = 1

b3-24 = 2

b3-01 [SpSrch@Start Selection]

x

x

b3-03 [SpSrch Deceleration Time]

-

x

b3-05 [SpSrch Delay Time]

x

x

b3-06 [Speed Curr Lev1 for Estimation]

x

-

b3-07 [Speed Curr Lev2 for Estimation]

x

-

b3-08 [Speed ACR PGain for Estimation]

x

-

b3-09 [Speed ACR ITime for Estimation]

x

-

b3-10 [Speed Det Gain for Estimation]

x

-

b3-14 [Speed Bi-Directional Search]

x

x

b3-17 [Speed Retry Current Level]

x

x

b3-18 [Speed Retry Delay]

x

x

b3-19 [Speed Retry Times]

x

x

b3-24 [SpSrch Method Selection]

x (1)

x (2)

b3-25 [SpSrch Wait Time]

x

x

b3-26 [Dir. Determ. Level]

x

-

b3-29 [SpSrch BackEMF Threshold]

-

-

b3-31 [SpSrch I Ref Level]

-

x

b3-32 [SpSrch I End Level]

-

x

b3-33 [SpSrch@Uv Selection]

x

x

b3-54 [Search Time]

-

-

b3-55 [Speed Curr Rise Time]

-

-

b3-56 [InverseRotationSearch WaitTime]

-

x

Note:

• To use Speed Estimation Speed Search with V/f Control, do Rotational Auto-Tuning before you set the Speed Search function. If the

wire length between the drive and motor changed since the last time you did Auto-Tuning, do Stationary Auto-Tuning for Line-to-Line

Resistance process again.

• If A1-02 = 5, 6 [PM OLVector, PM AOLVector] and the wiring distance between the motor and drive is long or if the motor is coasting

at more than or equal to 120 Hz, do not use Speed Search to restart the motor. Use Short Circuit Braking.

■ Current Detection 2

Use this Speed Search function with induction motors. Set b3-24 = 2 [SpSrch Method Selection = Current Det2].

Current Detection Speed Search injects current into the motor to detect the speed of an induction motor. Speed

Search increases the output voltage for the time set in L2-04 [Powloss Ramp Time@recovery], starting from the

maximum output frequency or the frequency reference.

Figure 12.22 Current Detection 2 after Momentary Power Loss

12

457

12.2 b: APPLICATION

Note:

Once power is restored, the drive will not execute Speed Search until the time set in b3-05 [SpSrch Delay Time] has passed. Thus, the

drive will not always start Speed Search although the time set in L2-03 [Min Baseblck Time] is expired.

If you enter the Run command at the same time as Speed Search, the drive will not do Speed Search until the time

set in L2-03 is expired. When the value set in L2-03 < b3-05, the drive will use the wait time set in b3-05.

Figure 12.23 Speed Search Selection at Start (Current Detection Type)

WARNING! Sudden Movement Hazard. Do not do Current Detection Speed Search with light loads or a stopped motor. If you

do Auto-Tuning in these conditions, the motor can suddenly accelerate and cause serious injury or death.

Note:

• You cannot use Current Detection Speed Search with PM motors.

• If the motor is rotating in reverse, you cannot do Speed Search.

• If the drive detects oL1 [Motor Overload] during Current Detection Speed Search, decrease the value set in b3-03.

• If the drive detects oC [Overcurrent] or ov [Overvoltage] during Current Detection Speed Search after the drive recovers from a

momentary power loss, increase the value set in L2-03.

■ Speed Estimation

Use this Speed Search function with induction motors. Set b3-24 = 1 [SpSrch Method Selection = Speed

Estimation]. This function uses less current and has a shorter search time than other functions. This function lets

you do Speed Search when the motor is rotating in reverse. When you return power after a power loss, the motor

will not suddenly accelerate.

Note:

You cannot do Speed Estimation Speed Search in these conditions:

• When You Operate More than One Motor with One Drive

• When you use a high-speed motor (120 Hz or higher)

• When you use a 1.5 kW or smaller motor.

• When the motor output is more than 1 frame size smaller than the drive capacity

• When there is a long wiring distance between the drive and motor

For these conditions, use Current Detection Speed Search.

Speed Estimation Speed Search uses these two steps to estimate the motor speed:

1.

Residual Voltage Search

When there is a short baseblock time, the drive searches for residual voltage. The drive uses the residual

voltage in the motor to estimate the motor speed and direction of rotation. The drive outputs the estimated

motor speed as frequency, then uses the deceleration rate set in L2-04 to increase the voltage. When the output

voltage aligns with the V/f pattern, the drive accelerates or decelerates the motor to the frequency reference. If

the drive cannot estimate the motor speed because of low residual voltage, it will automatically do Current

Injection.

458

12.2 b: APPLICATION

Figure 12.24 Speed Search after Baseblock

Note:

After you return power, the drive waits for the time set in b3-05. If power loss is longer than the time set in L2-03, the drive will start

Speed Search when the time set in b3-05 is expired after the power recovery.

2.

Current Injection

If there is not sufficient residual voltage in the motor, the drive does Current Injection. The drive injects the

quantity of DC current set in b3-06 [Speed Curr Lev1 for Estimation] into the motor windings to estimate the

motor speed and direction of rotation. The drive outputs the estimated motor speed as frequency, then uses the

deceleration rate set in L2-04 to increase the voltage. When the output voltage aligns with the V/f pattern, the

drive accelerates or decelerates the motor to the frequency reference.

Figure 12.25 Speed Search Selection at Start

Note:

Set the lower limit of the delay time to b3-05 for when Speed Search starts.

■ Speed Search and Operation Conditions

These conditions apply to Speed Search operation. When A1-02 = 0, 2 [Control Method = V/f Control,

OLVector], set b3-24 [SpSrch Method Selection] before you do Speed Search.

• Do Speed Search with each Run Command

The drive ignores a Speed Search command from the external terminals.

• Use an MFDI to do an External Speed Search Command

To use an MFDI to do Speed Search, input the Run command at the same time that terminal DIx set for Speed

Search activates, or after Speed Search activates.

Set Speed Search to H1-xx to do the function externally. You cannot set external Speed Search 1 and 2 at the

same time.

Table 12.11 Execute Speed Search via the Digital Input Terminals

H1-xx Setting

Name

Current Detection 2

Speed Estimation

67

SpdSrch Fmax

ON: Speed Search starts from E1-04 [Max Output

Frequency].

External Speed Search commands 1 and 2 work the

same.

68

SpdSrch Fref

ON: Speed Search starts from the frequency reference

The drive estimates the motor speed, then starts Speed

immediately before you input the Speed Search

Search from the estimated speed.

command.

12

• Do Speed Search with Each Auto Restart

459

12.2 b: APPLICATION

Set L5-01 [Auto-Reset Attempts] = 1 or more. After there is an Auto Restart fault, the drive automatically does

Speed Search.

• Do Speed Search after Momentary Power Loss

Set L2-01 =1 [RideThru@PwrLoss = Enabled], and set L2-50 = 0, 1 [RidThruMode@PwrLoss = Timer

Controlled, While CPU Active].

• Do Speed Search after You Clear the External Baseblock Command

After you clear the external baseblock command, enable the Run command, and when the output frequency is

higher than the minimum frequency, the drive does Speed Search.

■ b3-01: SpSrch@Start Selection

No.

Default

Name

Description

(Hex.)

(Range)

b3-01

SpSrch@Start Selection

V/f

OLV OLV/PM AOLV/PM EZOLV

Determined by A1-02

(0191)

Sets the Speed Search at Start function where the drive will perform Speed Search with each Run

(0, 1)

command.

0 : Disabled

Enter a Run command to start to operate the drive at the minimum output frequency.

When the Run command is enabled and the Speed Search from Fmax or Fref [H1-xx = 67, 68] is input from a

multi-function input terminal, the drive will do Speed Search and start to operate the motor.

1 : Enabled

Enter the Run command to do Speed Search. The drive completes Speed Search then starts to operate the motor.

■ b3-02: SpSrch Deactivation Current

No.

Default

Name

Description

(Hex.)

(Range)

b3-02

SpSrch Deactivation

V/f

OLV OLV/PM AOLV/PM EZOLV

Determined by A1-02

Current

(0192)

Sets the current level that stops Speed Search as a percentage of the drive rated output current.

(0 - 200%)

Usually it is not necessary to change this setting.

If the drive cannot restart the motor, decrease this setting.

■ b3-03: SpSrch Deceleration Time

No.

Default

Name

Description

(Hex.)

(Range)

b3-03

SpSrch Deceleration Time

V/f

OLV OLV/PM AOLV/PM EZOLV

2.0 s

(0193)

Sets the deceleration time during Speed Search operation. Set the length of time to decelerate

(0.1 - 10.0 s)

from the maximum output frequency to the minimum output frequency.

This is the output frequency deceleration time used by Current Detection Speed Search and by the Current

Injection Method of Speed Estimation Speed Search.

Note:

• When A1-02 = 8 [Control Method = EZ Vector], this parameter takes effect only in Expert Mode.

• If the drive detects oL1 [Motor Overload] during Current Detection Speed Search, decrease the value set in b3-03.

■ b3-04: SpSrch V/F Gain

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b3-04

SpSrch V/F Gain

Determined by o2-04

(0194)

Sets the ratio used to reduce the V/f during searches to reduce the output current during speed

(10 - 100)

searches.

Use the this formula to calculate the output voltage during Speed Search:

Output voltage during Speed Search = Configured V/f × b3-04

When the current detection search operates correctly, this configuration is not necessary.

■ b3-05: SpSrch Delay Time

No.

Default

Name

Description

(Hex.)

(Range)

b3-05

SpSrch Delay Time

V/f

OLV OLV/PM AOLV/PM EZOLV

0.2 s

(0195)

Sets the Speed Search delay time to activate a magnetic contactor installed between the drive and

(0.0 - 100.0 s)

motor.

460

12.2 b: APPLICATION

When you use a magnetic contactor between the drive and motor, you must close the contactor before the drive

will do Speed Search. This parameter sets a delay time to activate the magnetic contactor.

■ b3-06: Speed Curr Lev1 for Estimation

No.

Default

Name

Description

(Hex.)

(Range)

b3-06

Speed Curr Lev1 for

V/f

OLV OLV/PM AOLV/PM EZOLV

Determined by o2-04

Estimation

(0196)

Sets the level of current that flows to the motor during Speed Estimation Speed Search as a

(0.0

- 2.0)

coefficient of the motor rated current. Usually it is not necessary to change this setting.

Expert

When the speed estimation value is the minimum output frequency, increase this setting. You can do this when the

motor coasts at a high speed while the drive estimates the speed during Speed Estimation Speed Search. The limit

of the output current during speed search is automatically the drive rated current.

Note:

When the drive cannot accurately estimate the speed after you adjust this parameter, use Current Detection Speed Search.

■ b3-07: Speed Curr Lev2 for Estimation

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b3-07

Speed Curr Lev2 for

1.0

Estimation

(0197)

Sets the level of current that flows to the motor during Speed Estimation Speed Search as a

(0.0

- 3.0)

coefficient of E2-03 [Mot No-Load Current] or E4-03 [M2 No-Load Current]. Usually it is not

Expert

necessary to change this setting.

During Speed Estimation Speed Searches, when the speed estimation value aligns with the minimum output

frequency, increase the setting value in 0.1-unit increments. The limit of the output current during speed search is

automatically the drive rated current.

■ b3-08: Speed ACR PGain for Estimation

No.

Default

Name

Description

(Hex.)

(Range)

b3-08

Speed ACR PGain for

V/f

OLV OLV/PM AOLV/PM EZOLV

Determined by A1-02 and

Estimation

o2-04

(0198)

Sets the proportional gain for the automatic current regulator during Speed Estimation Speed

Search. Also adjusts speed search responsiveness. Usually it is not necessary to change this

(0.00

- 6.00)

Expert

setting.

■ b3-09: Speed ACR ITime for Estimation

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b3-09

Speed ACR ITime for

Determined by A1-02

Estimation

(0199)

Sets the integral time for the automatic current regulator during Speed Estimation Speed Search.

(0.0 - 1000.0 ms)

Also adjusts speed search responsiveness. Usually it is not necessary to change this setting.

Expert

■ b3-10: Speed Det Gain for Estimation

No.

Default

Name

Description

(Hex.)

(Range)

b3-10

Speed Det Gain for

V/f

OLV OLV/PM AOLV/PM EZOLV

1.05

Estimation

(019A)

Sets the gain to correct estimated frequencies from Speed Estimation Speed Search.

(1.00

- 1.20)

Expert

If the drive detects ov [DC Bus Overvoltage] when you restart the motor, increase the setting value.

■ b3-14: Speed Bi-Directional Search

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b3-14

Speed Bi-Directional

Determined by A1-02 and

Search

b3-24

(019E)

Sets the direction of Speed Search to the direction of the frequency reference or in the motor

rotation direction as detected by the drive.

(0, 1)

12

461

12.2 b: APPLICATION

Note:

• When E9-01 = 0 [Motor Type Selection = Induction (IM)] and A1-02 = 0, 2, or 8 [Control Method Selection = V/f, OLV, or EZOLV],

the default settings change when the setting of b3-24 [Speed Search Method Selection] changes.

-b3-24 = 1 [Speed Estimation]: Refer to Parameters that Change from the Default Settings with A1-02 [Control Method] on page 403.

-b3-24 = 2 [Current Detection 2]: 0

• When E9-01 = 1 or 2 [Permanent Magnet (PM), Synchronous Reluctance (SynRM)] and A1-02 = 0 or 8 [V/f, EZOLV], refer to

Parameters that Change from the Default Settings with A1-02 [Control Method] on page 403.

When you set A1-02, b3-24, and E9-01, set b3-14.

0 : Disabled

The drive uses the frequency reference to detect the direction of motor rotation.

1 : Enabled

The drive detects the direction of motor rotation during Speed Search.

■ b3-17: Speed Retry Current Level

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b3-17

Speed Retry Current Level

150%

(01F0)

Sets the current level for the search retry function in Speed Estimation Speed Search as a

(0 - 200%)

percentage where drive rated current is a setting value of 100%.

Expert

When a large quantity of current flows during Speed Estimation Speed Search, the drive temporarily stops

operation to prevent overvoltage and overcurrent. When the current is at the level set in b3-17, the drive tries

speed search again.

■ b3-18: Speed Retry Delay

No.

Default

Name

Description

(Hex.)

(Range)

b3-18

Speed Retry Delay

V/f

OLV OLV/PM AOLV/PM EZOLV

0.10 s

(01F1)

Sets the length of time that the drive will wait to retry Speed Estimation Speed Search when too

(0.00 - 1.00 s)

much current flow stopped the Speed Search.

Expert

When the current is more than the level set in b3-17 [Speed Retry Current Level] during the time set in b3-18, the

drive tries speed search again.

■ b3-19: Speed Retry Times

No.

Default

Name

Description

(Hex.)

(Range)

b3-19

Speed Retry Times

V/f

OLV OLV/PM AOLV/PM EZOLV

3 times

(01F2)

Sets the number of times to restart Speed Search if Speed Search does not complete.

(0 - 10 times)

If the drive does the number of Speed Search restarts set in this parameter, it will trigger an SEr [Speed Search

Retries Exceeded] error.

■ b3-24: SpSrch Method Selection

No.

Default

Name

Description

(Hex.)

(Range)

b3-24

SpSrch Method Selection

V/f

OLV OLV/PM AOLV/PM EZOLV

2

(01C0)

Sets the Speed Search method when you start the motor or when you restore power after a

(1, 2)

momentary power loss.

Note:

• When A1-02 = 8 [Control Method = EZ Vector], the default setting changes when the setting for E9-01 [Motor Type Selection]

changes.

- E9-01 = 0 [IM]: 2

- E9-01 = 1, 2 [PM, SynRM]: 1

• When you set b3-24, it will trigger the drive to initialize b3-14 [Speed Bi-Directional Search]. After you set b3-24, set b3-14.

Set b3-01 = 1 [SpSrch@Start Selection = Enabled] to do Speed Search at start. Set L2-01 = 1

[RideThru@PwrLoss = Enabled]] to do Speed Search after you restore power after a momentary power loss.

1 : Speed Estimation

The drive uses the residual voltage from a short baseblock time to estimate the motor speed.

462

12.2 b: APPLICATION

If there is not sufficient residual voltage, then the drive will inject DC current into the motor to estimate the motor

speed.

2 : Current Det2

The drive will inject DC current into the motor to estimate motor speed.

■ b3-25: SpSrch Wait Time

No.

Default

Name

Description

(Hex.)

(Range)

b3-25

SpSrch Wait Time

V/f

OLV OLV/PM AOLV/PM EZOLV

0.5 s

(01C8)

Sets the length of time the drive will wait to start the Speed Search Retry function.

(0.0 - 30.0 s)

Expert

If the drive detects these faults during speed search, increase the setting value:

• oC [Overcurrent]

• ov [Overvoltage]

• SEr [Speed Search Retries Exceeded]

■ b3-26: Dir. Determ. Level

No.

Default

Name

Description

(Hex.)

(Range)

b3-26

Dir. Determ. Level

V/f

OLV OLV/PM AOLV/PM EZOLV

1000

(01C7)

Sets the level to find the motor rotation direction. Increase the value if the drive cannot find the

(40 to 60000)

direction.

Expert

■ b3-29: SpSrch BackEMF Threshold

No.

Default

Name

Description

(Hex.)

(Range)

b3-29

SpSrch BackEMF

V/f

OLV OLV/PM AOLV/PM EZOLV

10%

Threshold

(077C)

Sets the induced voltage for motors that use Speed Search. The drive will start Speed Search

(0 - 10%)

when the motor induced voltage level is the same as the setting value. Usually it is not necessary

Expert

to change this setting.

To make adjustments, gradually decrease the setting value. If you decrease the setting value too much, speed

search will not operate correctly.

■ b3-31: SpSrch I Ref Level

No.

Default

Name

Description

(Hex.)

(Range)

b3-31

SpSrch I Ref Level

V/f

OLV OLV/PM AOLV/PM EZOLV

1.50

(0BC0)

Sets the current level that decreases the output current during Current Detection Speed Search.

(1.50

- 3.50)

Expert

Set this parameter as a ratio of E2-03 [Mot No-Load Current]. The setting is a ratio with respect to 30% of the

motor rated current when E2-03 ≤ E2-01 [Mot Rated Current (FLA)] × 0.3.

Note:

The setting is a ratio with respect to E9-06 [Motor Rated Current] × 0.5 when A1-02 = 8 [Control Method = EZ Vector].

■ b3-32: SpSrch I End Level

No.

Default

Name

Description

(Hex.)

(Range)

b3-32

SpSrch I End Level

V/f

OLV OLV/PM AOLV/PM EZOLV

1.20

(0BC1)

Sets the current level that completes Speed Search.

(0.00

- 1.49)

Expert

The Current Detection Speed Search gradually decreases the output frequency to search for the motor speed when

the output current is equal to or less than Speed Search Current Complete Level.

Set this parameter as a ratio of E2-03 [Mot No-Load Current]. The setting is a ratio with respect to 30% of the

motor rated current when E2-03 ≤ E2-01 [Mot Rated Current (FLA)] × 0.3.

12

Note:

The setting is a ratio with respect to E9-06 [Motor Rated Current] × 0.5 when A1-02 = 8 [Control Method = EZ Vector].

463

12.2 b: APPLICATION

■ b3-33: SpSrch@Uv Selection

No.

Default

Name

Description

(Hex.)

(Range)

b3-33

SpSrch@Uv Selection

V/f

OLV OLV/PM AOLV/PM EZOLV

1

(0B3F)

Sets the function that starts Speed Search at start-up if the drive detects a Uv [Undervoltage]

(0, 1)

when it receives a Run command.

Expert

Set these three parameters as shown to enable b3-33:

• L2-01 = 1, 2 [RideThru@PwrLoss = Enabled]

• L2-50 = 0, 1 [RidThruMode@PwrLoss = Timer Controlled, While CPU Active]

• b3-01 = 1 [SpSrch@Start Selection = Enabled]

• b1-03 = 1 [Stopping Method Selection = Coast->Stop]

0 : Disabled

1 : Enabled

■ b3-54: Search Time

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b3-54

Search Time

400 ms

(3123)

Sets the length of time that the drive will run Speed Search.

(10 - 2000 ms)

If you set this parameter too low, Speed Search will not operate correctly.

If the drive detects oC [Overcurrent] immediately after Speed Search Starts:

• Increase the value of L2-03 [Min Baseblck Time] and decrease the motor speed you use to start Speed Search.

• Increases the setting value of b3-08 [Speed ACR PGain for Estimation].

• Increase the value of b3-54.

If the drive detects oC or ov [DC Bus Overvoltage] during Speed Search, increase the value of b3-08.

■ b3-55: Speed Curr Rise Time

No.

Default

Name

Description

(Hex.)

(Range)

b3-55

Speed Curr Rise Time

V/f

OLV OLV/PM AOLV/PM EZOLV

10 ms

(3124)

Sets the length of time that the drive will increase the current from zero current to the setting

(10 - 2000 ms)

value of b3-06 [Speed Curr Lev1 for Estimation].

Expert

Gradually increase the setting value when a large quantity of current flows after speed search starts. If you set this

value too high, speed search will not operate correctly.

■ b3-56: InverseRotationSearch WaitTime

No.

Default

Name

Description

(Hex.)

(Range)

b3-56

InverseRotationSearch

V/f

OLV OLV/PM AOLV/PM EZOLV

Determined by o2-04

WaitTime

(3126)

Sets the wait time until the drive starts inverse rotation search after it completes forward search

(0.1 - 5.0 s)

when you do inverse rotation search during Current Detection Speed Search.

■ b3-61: Magn Pole Find Gain

No.

Default

Name

Description

(Hex.)

(Range)

b3-61

Magn Pole Find Gain

V/f

OLV OLV/PM AOLV/PM EZOLV

5.0

(1B96)

Sets the responsiveness for initial motor magnetic pole calculation when A1-02 = 6 [Control

(-20.0 - +20.0)

Method = PM AOLVector]. Set b3-61 > 0.0 for an ordinary IPM motor.

Expert

Used when n8-35 = 2 [InitRotorPos Selection = HiFreq Injection]. Sets the responsiveness for initial motor

magnetic pole calculation. Set this parameter to a positive value for an ordinary monitor. When you use High

Frequency injection Tuning, it will automatically set this parameter.

◆ b4: TIMER

The drive uses timers to delay activating and deactivating MFDO terminals.

464

12.2 b: APPLICATION

Timers prevent sensors and switches from making chattering noise.

There are two types of timers:

• Timers that set a delay for timer inputs and timer outputs.

These timers delay activating and deactivating of the MFDIs and MFDOs.

To enable this function, set H1-xx = 60 [MFDI Function Select = Timer Fn Input], and set H2-01 to H2-03 =

39 [MFDO Function Select = Timer Output].

• Timers that set a delay to activate and deactivate MFDO terminals.

These timers delay activating and deactivating MFDO terminals.

To enable this function, set delay times in parameters b4-03 to b4-08.

■ Timer Function Operation

• Timers that Set a Delay for Timer Inputs and Timer Outputs

Triggers timer output if the timer input is active for longer than the time set in b4-01 [Timer Function ON-Delay

Time]. Triggers timer output late for the time set in b4-02 [Timer Function OFF-Delay Time]. Figure 12.26

shows an example of how the timer function works.

Figure 12.26 Example of Timer Function Operation

• Setting On/Off-delay Time for MFDO

Figure 12.27 uses H2-01 terminals to show an example of how the timer function works. Use b4-03 [Terminal

M1-M2 ON-Delay Time] and b4-04 [Terminal M1-M2 OFF-Delay Time] to set this function.

Figure 12.27 Example of How the Timer Function Works with H2-01 Terminals

Note:

When the terminal is triggered, it continues for a minimum of 100 ms. The on/off-delay time of MFDO terminal does not have an effect.

■ b4-01: Timer ON Time Delay

No.

Default

Name

Description

(Hex.)

(Range)

b4-01

Timer ON Time Delay

V/f

OLV OLV/PM AOLV/PM EZOLV

0.0 s

(01A3)

Sets the ON-delay time for the timer input.

(0.0 - 3000.0 s)

■ b4-02: Timer OFF Time Delay

No.

Default

Name

Description

(Hex.)

(Range)

b4-02

Timer OFF Time Delay

V/f

OLV OLV/PM AOLV/PM EZOLV

0.0 s

(01A4)

Sets the OFF-delay time for the timer input.

(0.0 - 3000.0 s)

■ b4-03: NO,NC,CM ON-Time Delay

No.

Default

Name

Description

(Hex.)

(Range)

b4-03

NO,NC,CM ON-Time

V/f

OLV OLV/PM AOLV/PM EZOLV

0 ms

Delay

(0B30)

Sets the delay time until the contact is turned ON after the function set with H2-01 turns ON.

(0 - 65000 ms)

Expert

12

465

12.2 b: APPLICATION

■ b4-04: NO,NC,CM OFF-Time Delay

No.

Default

Name

Description

(Hex.)

(Range)

b4-04

NO,NC,CM OFF-Time

V/f

OLV OLV/PM AOLV/PM EZOLV

0 ms

Delay

(0B31)

Sets the delay time to deactivate the contact after the function set in H2-01 deactivates.

(0

- 65000 ms)

Expert

■ b4-05: DO1 ON-Time Delay

No.

Default

Name

Description

(Hex.)

(Range)

b4-05

DO1 ON-Time Delay

V/f

OLV OLV/PM AOLV/PM EZOLV

0 ms

(0B32)

Sets the delay time to activate the contact after the function set in H2-02 activates.

(0

- 65000 ms)

Expert

■ b4-06: DO1 OFF-Time Delay

No.

Default

Name

Description

(Hex.)

(Range)

b4-06

DO1 OFF-Time Delay

V/f

OLV OLV/PM AOLV/PM EZOLV

0 ms

(0B33)

Sets the delay time to deactivate the contact after the function set in H2-02 deactivates.

(0

- 65000 ms)

Expert

■ b4-07: DO2 ON-Time Delay

No.

Default

Name

Description

(Hex.)

(Range)

b4-07

DO2 ON-Time Delay

V/f

OLV OLV/PM AOLV/PM EZOLV

0 ms

(0B34)

Sets the delay time until the contact is turned ON after the function set with H2-03 turns ON.

(0

- 65000 ms)

Expert

■ b4-08: DO2 OFF-Time Delay

No.

Default

Name

Description

(Hex.)

(Range)

V/f

OLV OLV/PM AOLV/PM EZOLV

b4-08

DO2 OFF-Time Delay

0 ms

(0B35)

Sets the delay time to deactivate the contact after the function set in H2-03 deactivates.

(0

- 65000 ms)

Expert

◆ b5: PID CONTROL

The drive has a PID control function. You can control drive output to adjust the proportional gain, integral time,

and derivative time that has an effect on the bias between the target value and the feedback value to match the

target value to the detected value. Use this function to adjust the drive output to accurately match the flow,

pressure, and temperature in the application match the target value.

Use a combination of these controls to increase the performance:

• P control

P control has a proportional effect on the deviation. It outputs the product (the controlled output) proportional to

the deviation. You cannot use only the offset from P control to get to zero deviation.

• I control

I control is the integral of the deviation. It uses an integral value of the deviation to output the product (the

controlled output). I control helps align the feedback value and the target value. If you use only a proportional

effect (P control), it will cause and offset. Use a proportional effect with integral control, and the offset will

disappear over time.

• D control

D control is the derivative of the deviation. D control has an effect on drive output when there are sudden, large

changes in the deviation or feedback value. It quickly returns drive output to the value before the sudden

change. It multiplies a time constant by a derivative value of the deviation (slope of the deviation), and adds that

result to PID input to calculate the deviation of the signal, then it corrects the deviation.

Note:

D control has causes less stable operation because the noise changes the deviation signal. Use D control only when necessary.

466

12.2 b: APPLICATION

■ PID Control Operation

This figure shows PID control operation. The modified output (output frequency) changes when the drive uses

PID control to keep the deviation (the difference between the target value and the feedback value) constant.

Figure 12.28 PID Control Operation

■ PID Control Applications

This table shows applications for PID control.

Table 12.12 PID Control Applications

Application

Control Content

Sensors Used

Speed Control

• The drive uses a feedback signal for the machine

Tacho generator

speed, and adjusts that speed to align with the target

value.

• The drive uses speed data from other machinery as the

target value to do synchronous control. The drive then

adds that target value to the feedback from the

machine it is operating to align its speed with the other

machinery.

Pressure control

The drive uses feedback from the actual pressure to hold

Pressure sensor

constant pressure.

Flow control

The drive uses feedback from the actual flow to hold

Flow rate sensor

constant flow.

Temperature control

The drive uses feedback from the actual temperature to

Thermocoupler, thermistor

control a fan and hold constant temperature.

■ Input Methods for the PID Setpoint

Use b5-01 = 1 [PID Enable = Enabled] and b5-70 to b5-72 to select how the PID setpoint is input to the drive.

When b5-70 = 0 [PID MainRefMode = PID only] or b5-70 = 1 [Fref + PID] and b5-72 = 0 [PID D-FF Mode =

D=Fdback], either the frequency reference set in b1-01 [Freq. Ref. Sel. 1] or b1-15 [Freq. Ref. Sel. 2] will be the

PID setpoint, or the one of the inputs in Table 12.13 will be the PID setpoint.

When b5-70 = 1 [Fref + PID] or b5-70 = 1 [Fref + PID] and b5-72 = 1 [D=Fdback], one of the inputs in Table

12.13 will be the PID setpoint.

Table 12.13 Input Methods for the PID Setpoint

Input Methods for the PID Setpoint

Setting Value

MFAI terminal AI1

Set H3-02 = 10 [AI1 Function Selection = PID SetPoint].

MFAI terminal AI2

Set H3-10 [AI2 Function Selection] = 10.

Modbus register 0006H

Sets Modbus register 000FH (Control Selection Setting) bit 1 to 1 (PID setpoint input).

Enters the PID setpoint to Modbus register 0006H (PID Target, 0.01% units, signed).

Pulse train input terminal DI

Set H6-01 = 2 [PI Pulse Train Function = PID SP Value].

b5-19 [PID Setpoint Value]

Set b5-18 = 1 [b5-19 PID SP Selection = Enabled]. Enters the PID setpoint to b5-19.

Note:

If you set two inputs for the PID setpoint, it will trigger operation error oPE07 [Analog Input Selection Error].

■ Entering the PID Feedback Value

You can use two methods to input the PID feedback value to the drive. One method uses a single feedback signal

12

for usual PID control. The other method uses two signals. The difference between those signals sets the deviation.

• Use a single feedback signal.

467

12.2 b: APPLICATION

Use Table 12.14 to select how the feedback signal is input to the drive for PID control.

Table 12.14 PID Feedback Input Method

PID Feedback Input Method

Setting Value

MFAI terminal AI1

Set H3-02 = F [PID Fbk].

MFAI terminal AI2

Set H3-10 = F.

Pulse train input terminal DI

Set H6-01 = 1 [PIDFbk Value].

• Use two signals, and use the difference between those signals as the feedback signal.

The drive uses two feedback signals, and the difference between those signals becomes the deviation.

Use Table 12.15 to select how the second feedback value is input to the drive. The drive calculates the deviation

of the second feedback value. Set H3-02 or H3-10 = 11 [AI1 Function Selection or AI2 Function Selection =

Diff PIDFbk] to enable the second feedback signal used to calculated the deviation.

Table 12.15 PID Differential Feedback Input Method

PID Differential Feedback Input Method

Setting Value

MFAI terminal AI1

Set H3-02 = 11 [Diff PIDFbk].

MFAI terminal AI2

Set H3-10 = 11.

Note:

If you set H3-02 and H3-10 = 11, it will trigger oPE07 [Analog Input Selection Error].

■ PID Control Block Diagram

Figure 12.29 PID Control Block Diagram

■ PID Feedback Loss Detection

The PID feedback loss detection function detects broken sensors and defective wiring between the drive and

sensors.

468

12.2 b: APPLICATION

Use the PID feedback loss detection function when you use PID control. If the feedback signal is too low, the

motor can suddenly accelerate to the maximum output frequency. This function prevents such risks to the load.

The drive uses two methods to detect feedback loss:

• PID Feedback Loss [FbL]

Set these parameters for the PID feedback loss detection function.

The drive detects feedback loss when the feedback value is less than the value in b5-13 for longer than the time

in b5-14.

- b5-12 [Fdback Loss Select Mode]

- b5-13 [Fdback Loss Lvl]

- b5-14 [Fdback Loss Time]

• Excessive PID Feedback [FbH]

Set these parameters to set how the drive detects a feedback level that is too high.

The drive detects too much PID feedback when the feedback value is more than the value in b5-36 for longer

than the time in b5-37.

- b5-12 [Fdback Loss Select Mode]

- b5-36 [PID HiHi Limit Level]

- b5-37 [PID HiHi Time]

This figure shows the operation principle when the feedback value is too low, and the drive detects feedback loss.

The operation is the same when the drive detects too much feedback.

Figure 12.30 Time Chart for PID Feedback Loss Detection Time

■ PID Sleep

PID sleep stops drive operation when the PID output or the frequency reference is less than b5-15 [Sleep Start

Level]. This function shuts off drive output after the motor decelerates to the set frequency.

The drive will automatically restart the motor when the PID output or the frequency reference is more than the b5-

15 value for the time set in b5-16 [Sleep Delay Time].

This figure shows the PID Sleep function.

Figure 12.31 PID Sleep Time Chart

Note:

• The PID Sleep function is enabled when PID control is disabled.

• When the PID Sleep function is triggered, the drive will stop the motor as specified by b1-03 [Stopping Method Selection].

■ Fine-Tuning PID

12

Fine-tune the following parameter settings to have PID control eliminate problems with overshoot and oscillation.

• b5-02 [Proportional Gain (P)]

469

12.2 b: APPLICATION

• b5-03 [Integral Time (I)]

• b5-05 [Derivative Time (D)]

• b5-08 [PID Primary Delay Time Constant]

Purpose

Procedure

Results

Prevent overshoot.

• Set b5-05 [Derivative Time (D)] to a smaller

value.

• Set b5-03 [Integral Time (I)] to a larger value.

Quickly stabilize control.

• Set b5-05 [Derivative Time (D)] to a larger

value.

• Set b5-03 [Integral Time (I)] to a smaller value.

Prevent long-cycle oscillations.

Set b5-03 [Integral Time (I)] to a larger value.

Prevent short-cycle oscillations.

• Set b5-05 [Derivative Time (D)] to a smaller

value.

• If you set b5-05 = 0.00 [Derivative Time (D) =

disabling D control] and it does not stop

oscillation, then set b5-02 [Proportional Gain

(P)] to a smaller value or set b5-08 [PID

Primary Delay Time Constant] to a larger value.

■ EZ Sleep/Wake-up Functionality

Set b5-89 = 1 [Sleep Method Selection = EZ Sleep/Wake-up] to enable the EZ Sleep/Wake-up function.

Note:

• When b5-89 = 0 [Sleep Method Selection = Standard], the EZ Sleep function and related parameters are disabled. Parameter b5-91

[EZsleep Min Spd] is not included in this rule.

• Set b5-89 = 1 to disable b5-15 [Sleep Start Level].

470

12.2 b: APPLICATION

Configuration Parameter

Description

b5-90 [EZsleep Unit]

Sets the unit of measure for b5-92 [EZsleep Level]. When b5-90 = 1 [0.1Hz units], the setting range of b5-

91 [EZsleep Min Spd] is 0.0 to 590.0 Hz. When b5-90 = 0 [rpm], the setting range is 0 to 35400 min^-1 (r/

min).

Note:

When you change b5-90, the value of b5-92 is not automatically updated.

b5-91 [EZsleep Min Spd]

This parameter sets the lower limit for PID output. The drive uses the largest value of b5-91, b5-34 [PID Out

Low Limit Level], and d2-02 [FRef Lower Limit] to internally set the lower limit of PID output. The b5-89

setting does not have an effect.

b5-92 [EZsleep Level]

When the output frequency or motor speed is less than the value of b5-92 for longer than the value of b5-93

[EZsleep Time], the drive does to sleep.

b5-95 = 1 [EZsleep Wake Mode = Absolute]

When the PID feedback is less than the value of b5-94 [EZsleep Wake Level] for longer than the time set in

b5-96 [EZsleep Wake Time], the drive restarts operation from sleep.

b5-95 = 0 [EZsleep Wake Mode = Setpoint Delta]

When the PID feedback is less than the value set as the PID setpoint value minus b5-94 for the time set in

b5-96, the drive restarts operation from sleep.

Figure 12.32 EZ Sleep/Wake-up Operation: PID Output is Normal and b5-92 = 0.0 Hz

*1

The values of b5-94 and b5-95 set operation.

*2

In the example, b5-92 is at the default setting of 0.0 Hz. b5-91 is the EZ sleep level.

■ b5-01: PID Enable

No.

Default

Name

Description

(Hex.)

(Range)

b5-01

PID Enable

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(01A5)

Enables PID control.

(0, 1)

0 : Disabled

1 : Enabled

The drive does D control on the difference between the feedback value and the PID setpoint output through U5-02

[PID Input].

■ b5-70: PID MainRefMode

No.

Default

Name

Description

(Hex.)

(Range)

b5-70

PID MainRefMode

V/f

OLV OLV/PM AOLV/PM EZOLV

0

(01E5)

Sets the PID main reference mode.

(0, 1)

0 : PID only

The drive does D control on the difference between the feedback value and the PID setpoint output through U5-02

[PID Input].

1 : Fref + PID

12

The drive adds the frequency reference to the PID output. The drive does D control on the feedback output

through U5-06 [PID AdjustFeedback].

471

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