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Yaskawa iQpump Micro AC Drive Compact Intelligent Pump Controller. User Manual (2014) - page 5

5.6 F: Option Settings

5.6

F: Option Settings

u F6: Serial Communications Option Card Settings

These parameters configure communication option cards and communication fault detection methods.

n F6-01: Communications Error Operation Selection

Determines drive operation if a communication error occurs.

No.

Parameter Name

Setting Range

Default

F6-01

Communications Error Operation Selection

0 to 5

1

Setting 0: Ramp to Stop Using Current Accel/Decel Time

Setting 1: Coast to Stop

Setting 2: Fast-stop Using C1-09

Setting 3: Alarm Only, Continue Operation

Setting 4: Alarm and Run at d1-04

Note:

Take proper safety measures, such as installing an emergency stop switch, as the drive will continue operation when detecting an bUS error.

Setting 5: Alarm and Ramp to stop

n F6-02: External Fault from Comm. Option Detection Selection

Determines the detection method of an external fault initiated by a communication option (EF0).

No.

Parameter Name

Setting Range

Default

F6-02

External Fault from Comm. Option Selection

0 or 1

0

Setting 0: Always Detected

Setting 1: Detection During Run Only

n F6-03: External Fault from Comm. Option Operation Selection

Determines the operation when an external fault is initiated by a communication option (EF0).

No.

Parameter Name

Setting Range

Default

F6-03

External Fault from Comm. Option Operation Selection

0 to 3

1

Setting 0: Ramp to Stop Using Current Accel/Decel Time

Setting 1: Coast to Stop

Setting 2: Fast-stop Using C1-09

Setting 3: Alarm Only, Continue Operation

5

n F6-04: bUS Error Detection Time

Sets the delay time for bUS error detection.

No.

Parameter Name

Setting Range

Default

F6-04

bUS Error Detection Time

0.0 to 5.0 s

2.0 s

161

5.6 F: Option Settings

n F6-07: NetRef/ComRef Function Selection

Selects how multi-step speed inputs are treated when the NetRef command is set.

No.

Parameter Name

Setting Range

Default

F6-07

NetRef/ComRef Function Selection

0 or 1

0

Setting 0: Multi-Step Speed Operation Disabled

If the NetRef command is selected, multi-step speed input frequency references are disabled. This is the same as Yaskawa F7

drives.

Setting 1: Multi-Step Speed Operation Enabled

Multi-step speed inputs are active and can override the frequency reference from the communications option even when the

NetRef command is selected. This is the same as Yaskawa F7 drives.

n F6-08: Reset Communication Parameters

Determines whether communication-related parameters (F6-oo and F7-oo) are reset when the drive is initialized using

A1-03.

No.

Parameter Name

Setting Range

Default

F6-08

Reset Communication Parameters

0 or 1

0

Setting 0: Do Not Reset Parameters F6-oo and F7-oo when the Drive Is Initialized with A1-03

Setting 1: Reset F6-oo and F7-oo when the Drive Is Initialized with A1-03

Note:

F6-08 is not reset when the drive is initialized, but does determine whether initializing the drive with A1-03 resets communication parameters

F6-oo and F7-oo.

u MECHATROLINK-II Parameters

Parameters F6-20 through F6-26 set up the drive to operate on a MECHATROLINK-II network. Refer to the option manual

for details on parameter settings.

u MECHATROLINK-III Parameters

Parameters F6-20, F6-21, and F6-23 through F6-26 set up the drive to operate on a MECHATROLINK-III network. Refer to

the option manual for details on parameter settings.

u PROFIBUS-DP Parameters

Parameters F6-30 through F6-32 set up the drive to operate on a PROFIBUS-DP network. Refer to the option manual for

details on parameter settings.

u DeviceNet Parameters

Parameters F6-50 through F6-63 set up the drive to operate on a DeviceNet network. Refer to the option manual for details

on parameter settings.

u F7-01 to F7-42: EtherNet/IP and Modbus TCP/IP Option Parameters

F7-oo parameters are reserved for use with SI-EN3/V and SI-EM3/V options. Refer to the Option Installation Manuals for

details.

162

5.7 H: Terminal Functions

5.7

H: Terminal Functions

H parameters are used to assign functions to the external terminals.

u H1: Multi-Function Digital Inputs

n H1-01 to H1-07: Functions for Terminals S1 to S7

These parameters assign functions to the multi-function digital inputs.

Setting

No.

Parameter Name

Default

Range

H1-01

Multi-Function Digital Input Terminal S1 Function Selection

2 to B0

40 (F) ^<1> : Forward Run Command (2-Wire sequence)

H1-02

Multi-Function Digital Input Terminal S2 Function Selection

2 to B0

F: Through Mode

H1-03

Multi-Function Digital Input Terminal S3 Function Selection

0 to B0

26: External Pump Fault

H1-04

Multi-Function Digital Input Terminal S4 Function Selection

0 to B0

14: Fault Reset

H1-05

Multi-Function Digital Input Terminal S5 Function Selection

0 to B0

8D (0) ^<1> : Multi Setpoint 1

H1-06

Multi-Function Digital Input Terminal S6 Function Selection

0 to B0

80 (3) ^<1> : HAND Mode

H1-07

Multi-Function Digital Input Terminal S7 Function Selection

0 to B0

81 (4) ^<1> : HAND Mode 2

<1> Number appearing in parenthesis is the default value after performing a 3-Wire initialization (A1-03 = 3330).

Setting 0: 3-Wire Sequence

The digital input programmed for 3-Wire control becomes the forward/reverse directional input, S1 becomes the Run command

input, and S2 becomes the Stop command input.

The drive starts the motor when the input S1 set for the Run command closes for longer than 2 ms. The drive stops the operation

when the Stop input S2 releases for 2 ms. When the digital input programmed for a forward/reverse operation is open, the

drive is set for forward operation. When the digital input is closed, the drive is set for reverse operation.

Note:

Input the Run and Stop commands via S1 and S2 when selecting a 3-Wire sequence.

Stop Switch

Run Switch

DRIVE

(N.C.)

(N.O.)

S1

Run Command (Runs when Closed)

S2

Stop Command (Stops when Open)

S5

FWD/REV (Multi-Function Input)

(H1-05 = 0)

SN

Standard Digital Input Common

Figure 5.39 3-Wire Sequence Wiring Diagram

2 ms min.

Can be either ON or OFF

Run command

Stop command

OFF (stopped)

Forward/reverse

OFF (forward)

ON (reverse)

command

5

Motor speed

TIME

Stop

Forward

Reverse

Stop

Foward

Figure 5.40 3-Wire Sequence

Note:

1.

The Run command must be closed for more than 2 ms.

2.

If the Run command is active at power up and b1-17 = 0 (Run command at power up not accepted), the Run LED will flash to indicate

that protective functions are operating. If required by the application, set b1-17 to 1 to automatically issue the Run command upon drive

power up.

163

5.7 H: Terminal Functions

WARNING! Sudden Movement Hazard. Ensure start/stop and safety circuits are wired properly and in the correct state before applying

power to the drive. Failure to comply could result in death or serious injury from moving equipment.

WARNING! Sudden Movement Hazard. The drive may start unexpectedly in reverse direction after power up if it is wired for 3-Wire sequence

but set up for 2-Wire sequence (default). Make sure b1-17 is set to “0” (drive does not accept a Run command active at power up). When

initializing the drive use 3-Wire initialization. Failure to comply could result in death or serious injury from moving equipment.

Setting 2: External Reference 1/2 Selection

Switches between two different sources of Run Commands and Frequency References. When multi-function digital input

selection 2 (Ext Ref Sel) is programmed, the Run Command and Frequency Reference source can be switched between External

Reference 1 (b1-01/b1-02) and External Reference 2 (b1-15/b1-16) if the drive is in AUTO mode.

Settings 3 to 5: Multi-Step Speed Reference 1 to 3

Switches multi-step speed frequency references d1-01 to d1-08 by digital inputs.

Setting 6: Jog Reference Selection

The Jog frequency set in parameter d1-17 becomes the frequency reference when the input terminal closes.

Setting 7: Accel/Decel Time Selection 1

Switches between accel/decel times 1 (C1-01 and C1-02) and 2 (C1-03 and C1-04). Refer to C1-01 to C1-04: Accel, Decel

Times 1 and 2 on page 140 for details.

Settings 8 and 9: Baseblock Command (N.O., N.C.)

When the drive receives a baseblock command, the output transistors stop switching, the motor coasts to stop, and a bb alarm

flashes on the digital operator to indicate baseblock. When baseblock ends while a Run command is active, the drive performs

Speed Search to restart the motor.

Drive Operation

Digital Input Function

Input Open

Input Closed

Setting 8 (N.C.)

Baseblock (Interrupt output)

Normal operation

Setting 9 (N.O.)

Normal operation

Baseblock (Interrupt output)

WARNING! Sudden Movement Hazard. When using a mechanical holding brake with the drive in a lifting application, close the brake when

the drive output is cut off by a baseblock command triggered by one of the input terminals. Failure to comply will result in a slipping load

from the motor suddenly coasting when the baseblock command is entered and may cause serious injury or death.

OFF

ON

Run command

Baseblock

ON

release

Baseblock input

Frequency

reference

Begin Speed Search from the

previous frequency reference

Output frequency

Output off, motor coasts

Figure 5.41 Baseblock Operation During Run

Setting A: Accel/Decel Ramp Hold

When the digital input programmed for the Accel/decel ramp hold function closes, the drive locks (holds) the output frequency.

Acceleration or deceleration resumes when the input is reopened.

If the Accel/decel ramp hold function is enabled (d4-01 = 1), the drive saves the output frequency to memory when the Ramp

Hold input is closed. When the drive is restarted after stop or after power supply interruption, the saved output frequency

becomes the frequency reference (provided that the Accel/decel ramp hold input is still closed).

Setting B: Drive Overheat Alarm (oH2)

Triggers an oH2 alarm when the contact closes. Drive operation is not affected because this is an alarm.

164

5.7 H: Terminal Functions

Setting C: Analog Terminal Input Selection (Terminal A1, A2)

When closed, the terminals specified in H3-14 are enabled. When open, the drive disregards the input signal to the analog

terminals.

Setting F: Not Used/Through Mode

Select this setting when using the terminal in a pass-through mode. When set to F, an input does not trigger any function in

the drive. Setting F, however, still allows the input status of the terminal (open or closed) to be read out by a PLC via a

communication option or MEMOBUS/Modbus communications. The drive input terminals can then be used as remote I/O by

the PLC.

Settings 10 and 11: Up/Down Function

The Up/Down function allows the frequency reference to be set by two push buttons when one digital input is programmed

as the Up input (H1-oo= 10) to increase the frequency reference and the other digital input is programmed as the Down input

(H1-oo= 11) to decrease the frequency reference.

The Up/Down function takes priority over the frequency references from the digital operator, the analog inputs, and the pulse

input (b1-01 = 0, 1, 4). When using the Up/Down function, references provided by these sources will be disregarded.

The inputs operate as shown in Table 5.20:

Table 5.20 Up, Down Command

Status

Drive Operation

Up (10)

Down (11)

Open

Open

Hold current frequency reference

Closed

Open

Increase frequency reference

Open

Closed

Decrease frequency reference

Closed

Closed

Hold current frequency reference

Note:

1. An oPE03 alarm occurs when only one of the Up/Down functions is programmed to a digital input.

2. An oPE03 alarm occurs when the Up/Down function is assigned to the terminals and a different digital input is programmed for the

Accel/decel ramp hold function. For more information on alarms, Refer to Drive Faults, Alarms, Errors, and Messages on page

252.

3. The Up/Down function can only be used for External reference 1. Consider this when using Up/Down and the external reference switching

command (H1-oo = 2).

Using the Up/Down Function with Frequency Reference Hold (d4-01)

• If the frequency reference hold function is disabled (d4-01 = 0), the Up/Down frequency reference will be reset to 0 when

the Run command is cleared or the power is cycled.

• When d4-01 = 1, the drive will save the frequency reference set by the Up/Down function. When the Run command or the

power is cycled, the drive will restart with the saved reference value. Close the Up or Down input without an active Run

command to reset the saved value.

Using the Up/Down Function with Frequency Reference Limits

Parameter d2-01 determines the upper frequency reference limit.

The value for the lower frequency reference limit depends on the parameter d4-10 setting. This value can be set by an analog

input or parameter d2-02. When a Run command is applied, the lower limits function as follows:

• If the lower limit is set by d2-02 only, the drive accelerates to this limit as soon as a Run command is entered.

• If the lower limit is determined by an analog input only, the drive accelerates to the limit when both the Run command and

an Up or Down command are active. The drive will not start running if only the Run command is active.

• If the lower limit is set by both an analog input and d2-02, and the analog limit is higher than the d2-02 value, the drive

5

accelerates to the d2-02 value when a Run command is input. When the d2-02 value is reached, the drive accelerates to the

analog limit only if an Up or Down command is set.

Figure 5.42 shows an Up/Down function example with a lower frequency reference limit set by d2-02, and the frequency

reference hold function both enabled and disabled.

165

5.7 H: Terminal Functions

Output frequency

upper limit

Accelerates to

lower limit

d4-01 = 1

Same

frequency

d4-01 = 0

Lower limit

FWD run/stop

ON

ON

Up command

Hold

ON

frequency

reset

Down command

ON

ON

Power supply

Figure 5.42 Up/Down Command Operation

Settings 12 and 13: Forward Jog, Reverse Jog

Digital inputs programmed as Forward Jog (H1-oo = 12) and Reverse Jog (H1-oo = 13) are Jog inputs that do not require

a Run command. Closing the terminal set for Forward Jog input will cause the drive to ramp to the Jog frequency reference

(d1-17) in the forward direction. The Reverse Jog will cause the same action in the reverse direction. The Forward Jog and

Reverse Jog command can be set independently.

Note:

The Forward Jog and Reverse Jog commands override all other frequency references. However, if the drive is set to prohibit reverse rotation

(b1-04 = 1), activating Reverse Jog will have no effect. Inputting both the Forward Jog and Reverse Jog are simultaneously for 500 ms or

longer will trigger an alarm will and the drive will ramp to stop.

d1-17

Output

Frequency

d1-17

ON

FJOG

ON

RJOG

Figure 5.43 FJOG/RJOG Operation

Setting 14: Fault Reset

When the drive detects a fault condition, the fault output contact closes, the drive output shuts off, and the motor coasts to

stop (specific stopping methods can be selected for some faults such as L1-04 for motor overheat). After removing the Run

command, clear the fault either by pressing the RESET key on the digital operator or closing a digital input configured as a

Fault Reset (H1-oo = 14).

Note:

Remove the Run command prior to resetting a fault. Fault Reset commands are ignored while the Run command is present.

Settings 15 and 17: Fast Stop (N.O., N.C.)

The Fast Stop function operates similar to an emergency stop input to the drive. If a Fast Stop command is input while the

drive is running, the drive decelerates to a stop in the deceleration time set to C1-09. The drive can only be restarted after

bringing the drive to a complete stop, turning off the Fast Stop input, and switching off the Run command.

• To trigger the Fast Stop function with an N.O. switch, set H1-oo = 15.

• To trigger the Fast Stop function with an N.C. switch, set H1-oo = 17.

Figure 5.44 shows an operation example of Fast Stop.

166

5.7 H: Terminal Functions

Run/Stop

ON

ON

Fast-Stop

H1-

= 17

ON

ON

Decelerates at C1-09

Output Frequency

TIME

Figure 5.44 Fast Stop Sequence

NOTICE: Rapid deceleration can trigger an overvoltage fault. When faulted, the drive output shuts off, and the motor coasts. To avoid this

uncontrolled motor state and to ensure that the motor stops quickly and safely, set an appropriate Fast Stop time to C1-09.

Setting 18: Timer Function Input

This setting configures a digital input terminal as the input for the timer function. Use this setting combination with the timer

function output (H2-oo = 12).

Setting 19: PID Disable

Close a digital input to indefinitely disable the PID function. When the input is released, the drive resumes PID operation.

Setting 1B: Program Lockout

Parameter values cannot be changed when an input is programmed for Program Lockout and the input is open. It is still possible,

however, to view and monitor parameter settings.

Setting 1E: Reference Sample Hold

This function allows the user to sample an analog frequency reference signal being input to terminal A1, A2, or A3 and hold

the frequency reference at the sampled level. When the Analog Frequency Reference Sample/Hold function is held for at least

100 ms, the drive reads the analog input and changes the frequency reference to the newly sampled speed as illustrated in

Figure 5.45.

When the power is shut off and the sampled analog frequency reference is cleared, the frequency reference is reset to 0.

Frequency

Reference

Time

Reference

OFF

ON

Sample Hold Input

100 ms

100 ms

Figure 5.45 Analog Frequency Reference Sample/Hold

5

An oPE03 error will occur when one of the following functions is used simultaneously with the Analog frequency reference

sample/hold command:

• Hold accel/decel stop (setting: A)

• Up command, Down command (setting: 10, 11)

• Up or Down functions (setting: 75, 76)

Settings 20 to 2F: External Fault

The External fault command stops the drive when problems occur with external devices.

To use the External fault command, set one of the multi-function digital inputs to a value between 20 and 2F. The digital

operator will display EFo where o is the number of the terminal to which the external fault signal is assigned.

For example, if an external fault signal is input to terminal S3, “EF3” will be displayed.

167

5.7 H: Terminal Functions

Select the value to be set in H1-oo from a combination of any of the following three conditions:

• Signal input level from peripheral devices (N.O., N.C.)

• External fault detection method

• Operation after external fault detection

An “On-Delay” timer will be applied to the external fault if it is “Normally Open” and an “Off-Delay” timer will be applied

to the external fault if it is “Normally Closed”.

If the external fault is set to “During Run”, the time delay will start after the Run command is received.

Refer to Figure 5.46 to Figure 5.48 for details.

Table 5.21 shows the relationship between the conditions and the value set to H1-oo:

Terminal statuses, detection conditions, and stopping methods marked with an “O” are applicable to the corresponding settings.

Table 5.21 Stopping Method for External Fault

Terminal Status ^<1>

Detection Conditions ^<2>

Stopping Method

Setting

Detected

Alarm Only

Always

Ramp to Stop

Coast to Stop

Fast Stop

N.O.

N.C.

during Run

(continue

Detected

(fault)

(fault)

(fault)

only

running)

20

O

O

O

21

O

O

O

22

O

O

O

23

O

O

O

24

O

O

O

25

O

O

O

26

O

O

O

27

O

O

O

28

O

O

O

29

O

O

O

2A

O

O

O

2B

O

O

O

2C

O

O

O

2D

O

O

O

2E

O

O

O

2F

O

O

O

<1>

Determine the terminal status for each fault, i.e., whether the terminal is normally open or normally closed.

<2>

Determine whether detection for each fault should be enabled only during run or always detected.

External Pump Fault (or Alarm) N.O. Always Detected

Closed

Pump Fault

Digital Input

Open

(H1-0☐ = 2☐)

H1-2☐

H1-2☐

EF☐ Delay Time

EF☐ Delay

Time

EF☐ Pump

Fault or Alarm

Figure 5.46 External Pump Fault and Alarm N.O. Always Detected

168

5.7 H: Terminal Functions

External Pump Fault (or Alarm) N.C. Always Detected

Closed

Pump Fault

Digital Input

Open

(H1-0☐ = 2☐)

H1-2☐

H1-2☐

EF☐ Delay Time

EF☐ Delay

Time

EF☐ Pump

Fault or Alarm

Figure 5.47 External Pump Fault and Alarm N.C. Always Detected

External Pump Fault N.O. Detected During Run

Closed

Pump Fault

Digital Input

Open

(H1-0☐ = 2☐)

H1-2☐

H1-2☐

H1-2☐

EF☐ Delay Time

EF☐ Delay

EF☐ Delay

Time

Time

Drive

Running

or Sleeping

EF☐ Pump

Fault

Fault Reset

Commanded

Figure 5.48 External Pump Fault N.O. Detected During Run

Setting 30: PID Integral Reset

Configuring one of the digital inputs for PID integral reset (H1-oo = 30) resets the value of the integral component in PID

control to 0 when the terminal is closed.

Setting 31: PID Integral Hold

Configuring a digital input for Integral Hold (H1-0o = 31) locks the value of the integral component of the PID control as

long as the input is active. The PID controller resumes integral operation from the hold value as soon as the integral hold input

is released.

Setting 32: Multi-Step Speed Reference 4

Selects the multi-step speeds d1-09 to d1-16 in combination with the input terminal set for Multi-Step Speed 1, 2 and 3.

Setting 34: PID Soft Starter Cancel

A digital input configured as a PID soft starter cancel input (H1-0o = 34) enables or disables the PID soft starter and cancels

the PID accel/decel time (b5-17).

5

Setting 35: PID Input Level Selection

Allows an input terminal to switch the sign of the PID input.

Settings 40 and 41: Forward Run, Reverse Run Command for 2-Wire Sequence

Configures the drive for a 2-Wire sequence.

When an input terminal set to 40 closes, the drive operates in the forward direction. When an input set for 41 closes, the drive

operates in reverse. Closing both inputs simultaneously will result in an external fault.

Note:

1. This function cannot be used simultaneously with settings 42 and 43.

2. The same functions are assigned to terminals S1 and S2 when the drive is initialized for 2-Wire sequence.

169

5.7 H: Terminal Functions

Drive

Forward Run

S1

Reverse Run

S2

Standard Digital

SN

Input Common

Figure 5.49 Example Wiring Diagram for 2-Wire Sequence

Settings 42 and 43: Run and Direction Command for 2-Wire Sequence 2

Sets the drive for 2-Wire sequence 2.

When an input terminal programmed for 42 closes, the drive will operate in the selected direction. The drive will stop when

the input opens.

The input programmed for 43 selects the direction. If the input is open, forward direction is selected. If the input is closed,

reverse direction is selected.

Note:

This function cannot be used simultaneously with settings 40 and 41.

Setting 47: Node Setup

If the SI-S3 option card is connected, closing this terminal sets a node address for operation on a CANopen network.

Setting 60: DC Injection Braking Command

DC Injection Braking is activated when a DC Injection Braking command is input while the drive is stopped. DC Injection

Braking is released when a Run command or a Jog command is input.

The diagram below illustrates DC Injection Braking:

DC Injection braking

OFF

ON

OFF

command

OFF

ON

OFF

FWD Run command

DC Injection

DC Injection

braking

braking

DC Injection Braking

Start Frequency

(b2-01)

Output frequency

Figure 5.50 DC Injection Braking Input Timing Diagram

Settings 61 and 62: External Speed Search Command 1, 2

These input functions enable Speed Search even if parameter b3-01 = 0 (no Speed Search at start).

Note:

Assigning Speed Search 1 and Speed Search 2 to input terminals will trigger an oPE03 error.

Settings 65 and 66: KEB Ride-Thru 1 (N.C.), 2 (N.O.)

Enables the KEB Ride-Thru function selected in parameter L2-29.

Drive Operation

Digital Input Function

Input Open

Input Closed

Setting 65 (N.C.)

KEB Ride-Thru Deceleration

Normal operation

Setting 66 (N.O.)

Normal operation

KEB Ride-Thru Deceleration

Note:

Simultaneously assigning KEB Ride-Thru 1 and KEB Ride-Thru 2 to the input terminals will trigger an oPE03 error.

Setting 67: Communication Test Mode

The drive has a built-in function to self-diagnose serial communications operation. The test involves wiring the send and

receive terminals of the RS-422/RS-485 port together. The drive transmits data and then confirms that the communications

are received normally.

170

5.7 H: Terminal Functions

Setting 6A: Drive Enable

A digital input configured as a “Drive enable” (H1-oo = 6A) will prevent the drive from executing a Run command until

the input is closed. When the input is open, the digital operator will display “dnE” to indicate that the drive is disabled.

If a Run command is enabled before the terminal set for “Drive enable” closes, then the drive will not run until the Run

command is cycled (i.e., a new Run command is required). If the input is opened while the drive is running, the drive will stop

according to the stop method set to b1-03. Refer to b1-03: Stopping Method Selection on page 118 for details.

Setting 73: Low City Press

Indicates that sufficient or insufficient pressure is present on the inlet to the pump. Used mainly for pressure booster situations.

Settings 75 and 76: Up 2/Down 2 Function

The Up/Down 2 function adds a bias to the frequency reference. The input programmed for 75 will increase the bias and the

input programmed for 76 will decrease the bias. Table 5.22 explains how the Up/Down 2 function works depending on the

frequency reference source and parameters d4-01, d5-03, and d4-05.

Note:

1. The Up/Down 2 functions must be set as a pair.

2. When using the Up/Down 2 function, set appropriate bias limit values to parameters d4-08 and d4-09.

Table 5.22 Up/Down 2 Operations

Freq. Ref.

Condition

d4-03

d4-05

d4-01

Operation

Frequency Saved

Source

1

0

•

Accelerates (increases the bias) while the Up 2

Not saved

terminal is closed.

•

Decelerates (decreases the bias) while Down 2 is

closed.

If the bias and frequency reference

0

•

Holds output frequency (holds the bias) when no

are constant for 5 s, the bias is

2

1

Up 2 or Down 2 input or both active.

added to the active frequency

•

Resets the bias when the reference changes.

reference and reset afterwards.

Multi-Step Speed

0

Reference

•

Operates with the frequency reference in all other

situations.

•

Accelerates (increases the bias) while the Up 2

terminal is closed.

3

1

--

•

Decelerates (decreases the bias) while Down 2 is

Not saved

closed.

•

Otherwise operates at the frequency reference.

4

0

•

When the Up 2 is enabled, the drive accelerates to

Not saved

the frequency reference plus d4-03 (bias is

increased for d4-03).

•

When Down 2 is enabled, the drive decelerates to

the frequency reference minus d4-03 (bias is

Value

decreased for d4-03).

If the bias and frequency reference

Multi-Step Speed

other

--

are constant for 5 s, the bias is

Reference

•

Holds output frequency (holds the bias) when

5

than 0

1

neither Up/Down 2 inputs are active or both inputs

added to the active frequency

are active.

reference and reset afterwards.

•

Resets the bias when the reference changes.

•

Operates with the frequency reference in all other

situations.

6

0

•

Accelerates (increases the bias) while the Up 2

Not saved

terminal is closed.

•

Decelerates (decreases the bias) while Down 2 is

closed.

If the bias is constant for 5 s, it is

5

•

Holds output frequency (holds the bias) when

Other (analog

saved to parameter d4-06. The

0

0

neither Up/Down 2 inputs are active or both inputs

7

comm., etc.)

1

frequency reference cannot be

are active.

overwritten, so only the bias is

•

If the frequency reference changes for more than

saved.

the time set to d4-07 during accel/decel, bias value

is held until the output frequency meets the

reference (speed agree).

171

5.7 H: Terminal Functions

Freq. Ref.

Condition

d4-03

d4-05

d4-01

Operation

Frequency Saved

Source

• Accelerates (increases the bias) while the Up 2

terminal is closed.

8

0

1

--

• Decelerates (decreases the bias) while Down 2 is

Not saved

closed.

• Otherwise operates at the frequency reference

9

0

• When Up 2 is enabled, drive accelerates to the

Not saved

Other (analog

frequency reference plus d4-03 (increases the bias

comm, etc.)

for d4-03).

Value

• When Down 2 is enabled, drive decelerates to the

If the bias is constant for 5 s, it is

other

--

frequency reference minus d4-03 (decreases the

saved to parameter d4-06. The

10

than 0

1

bias for d4-03).

frequency reference cannot be

overwritten, so only the bias is

• If the frequency reference changes for more than

saved.

d4-07 during accel/decel, bias value is held until the

output frequency meets the reference (speed agree).

Settings 7A and 7B: KEB Ride-Thru 2 (N.C., N.O.)

An input terminal set to 7A or 7B can trigger Single Drive KEB Ride-Thru during deceleration. L2-29 is disregarded if this

is enabled.

Drive Operation

Digital Input Function

Input Open

Input Closed

Setting 7A (N.C.)

Single Drive KEB Ride-Thru 2

Normal operation

Setting 7B (N.O.)

Normal operation

Single Drive KEB Ride-Thru 2

Note:

Simultaneously assigning KEB Ride-Thru 1 and KEB Ride-Thru 2 to the input terminals will trigger an oPE03 error.

Setting 80: HAND Mode

Closing this input will put the drive in HAND Mode.

If this contact is closed within one second of power-up, the drive will honor the utility delay time.

Note:

When inputs 80 and 81 are closed simultaneously, input 80 has priority and P5-01 determines the frequency reference.

Setting 81: HAND Mode 2

Closing this input will put the drive in HAND Mode using P5-05 as a frequency reference.

If this contact is closed within one second of power-up, the drive will honor the utility delay time.

Note:

When inputs 80 and 81 are closed simultaneously, input 80 has priority and P5-01 determines the frequency reference.

Settings 83, 84, and 85: Alternate Multi-step Setpoints

These setpoint selections are different from Multi Setpoints 1 and 2 (H1-oo = 8D/8E) in that each input is dedicated to a

setpoint instead of being a binary selection.

Table 5.23 shows active setpoints based on the Alternate Multi-Setpoint Selections (H1-oo = 83 to 85):

Table 5.23 Active Setpoints by H1-oo Setting

Alternate Multi-Setpoint Q1-02

Alternate Multi-Setpoint Q1-03

Alternate Multi-Setpoint Q1-04

Setpoint

H1-oo = 83

H1-oo = 84

H1-oo = 85

Open

Open

Open

Q1-01

Closed

Open/Closed

Open/Closed

Q1-02

Open

Closed

Open/Closed

Q1-03

Open

Open

Closed

Q1-04

Setting 88: Volute-Thermostat (N.O.)

Closed: Drive will trip on “VLTS - Volute-TStat Flt”.

Open: Thermostat fault not active.

Note:

Assigning both 88 and 89 to input terminals will trigger a VLTS-Volute-TStat Flt.

Setting 89: Volute-Thermostat (N.C.)

Closed: Thermostat fault not active.

Open: Drive will trip on “VLTS - Volute-TStat Flt”.

Note:

Assigning both 88 and 89 to input terminals will trigger a VLTS-Volute-TStat Flt.

172

5.7 H: Terminal Functions

Setting 8C: Disable Pre-Charge

Close to disable pre-charge.

Settings 8D and 8E: Multi Setpoints 1 and 2

Settings 8D and 8E will override all other PID setpoints when closed.

Table 5.24 Multi Setpoints 1 and 2

Multi Setpoint 1

Multi Setpoint 2

Setpoint Source

(H1-0o = 8D)

(H1-0o = 8E)

Frequency Ref (dependent on b1-01), Setpoint 1 - Q1-01 (when b1-01 = 0),

Open

Open

Analog Setpoint (H3-0o = C), Pulse Input Setpoint (H6-01 = 2), or

MEMOBUS setpoint.

Closed

Open

Setpoint 2 - Q1-02

Open

Closed

Setpoint 3 - Q1-03

Closed

Closed

Setpoint 4 - Q1-04

Setting 8F: Low Water Level

Function is active in AUTO Mode during normal operation and is also used with Pre-charge function.

Function depends on P1-30, Low Water Digital Input Configuration, setting.

When P1-30 = 0 (N.O.): Closed: Low Water Level Fault. Open: Reservoir/Tank is filled to normal level.

When P1-30 = 1 (N.C.): Closed: Reservoir/Tank is filled to normal level. Open: Low Water Level Fault.

Pre-charge function uses low water level input as “Tank/Reservoir” feedback to indicate water level reached.

Setting 90: High Water Level

Function is active when the drive is running and depends on P1-31, High Water Digital Input Configuration, setting.

When P1-31 = 0 (N.O.): Closed: High Water Level Fault. Open: Reservoir/Tank is filled to normal level.

When P1-30 = 1 (N.C.): Closed: Reservoir/Tank is filled to normal level. Open: High Water Level Fault.

Setting 95: Remove Drive Disable

Prevents the drive from running when active for the time set in P4-26. Must be inactive for the time set in P4-27 to allow the

drive to run again.

Note:

Parameter P4-25 determines whether this input is Normally Open or Normally Closed.

Setting B0: Emergency Override Function

The Emergency Override function is activated by closing the digital input programmed for Emergency Override Forward Run

(H1-oo = AF) or Emergency Override Reverse Run (H1-oo = B0).

If H1-oo = 6A (Drive Enable) is programmed, it must be opened to disable the drive for Emergency Override to take effect.

Closing both Emergency Override digital inputs at the same time will trigger an External Fault (EF) error.

When the drive is in Emergency Override, the frequency reference source is dependent on parameter S6-02, Emergency

Override Reference Selection. When S6-02 is set to 0 (Use S6-01 Reference), the drive will run at the S6-01 setting. When

S6-02 is set to 1 (Use Frequency Ref), the drive will use the currently selected frequency reference (based on b1-01 and HAND/

AUTO) as the run speed.

An alarm will flash during Emergency Override indicating that the function is active and the direction the drive is commanded

to run.

Resettable faults occurring when Emergency Override is activated will be cleared.

5

The drive will perform unlimited speed search retries during Emergency Override.

When Emergency Stop is active and Emergency Override is activated, the drive will run in Emergency Override mode.

The CALL (Serial Communication Error) mechanism is deactivated when Emergency Override is activated.

The Emergency Override function has priority over the PID Sleep feature (b5-15/b5-16).

Setting AF: Emergency Override Forward Run

Enables Emergency Override Forward Run (Enabled when S6-01 = 1).

Setting B0: Emergency Override Reverse Run

Enables Emergency Override Reverse Run (Enabled when S6-01 = 1).

173

5.7 H: Terminal Functions

u H2: Multi-Function Output

n H2-01 to H2-03: Terminal MA/MB/MC, P1/PC, and P2/PC Function Selection

The drive has three multi-function output terminals.

No.

Parameter Name

Setting Range

Default

H2-01

Terminal MA, MB and MC Function Selection (relay)

0 to 1AA

E: Fault

H2-02

Terminal P1 Function Selection (open-collector)

0 to 1AA

37: During Frequency Output

H2-03

Terminal P2 Function Selection (open-collector)

0 to 1AA

E: Fault

Setting 0: During Run

Output closes when the drive is outputting a voltage.

Status

Description

Open

Drive is stopped.

Closed

A Run command is input or the drive is in deceleration or DC injection.

OFF

ON

Run command

Baseblock

OFF

ON

command

Output

frequency

During Run

OFF

ON

Figure 5.51 During Run Time Chart

Setting 1: Zero Speed

Terminal closes when the output frequency falls below the minimum output frequency set to E1-09 or b2-01.

Status

Description

Open

Output frequency is above the minimum output frequency set to E1-09 or b2-01

Closed

Output frequency is less than the minimum output frequency set to E1-09 or b2-01

Output frequency

or

E1-09 (Max. Output Frequency) or

motor speed

b2-01 (Zero Speed Level)

OFF

ON

Zero Speed

Figure 5.52 Zero-Speed Time Chart

Setting 2: Speed Agree 1 (f_ref/f_out Agree 1)

Closes when the actual output frequency is within the Speed Agree Width (L4-02) of the current frequency reference regardless

of the direction.

Status

Description

Open

Output frequency or motor speed does not match the frequency reference while the drive is running.

Closed

Output frequency or motor speed is within the range of frequency reference ±L4-02.

Note:

Detection works in forward and reverse.

174

5.7 H: Terminal Functions

Frequency

reference

Output Frequency

L4-02

or Motor Speed

L4-02

Speed agree 1

OFF

ON

Figure 5.53 Speed Agree 1 Time Chart

Setting 3: User-Set Speed Agree 1 (f_ref/f_set Agree 1)

Closes when the actual output frequency and the frequency reference are within the speed agree width (L4-02) of the

programmed speed agree level (L4-01).

Status

Description

Open

Output frequency or motor speed and frequency reference are not both within the range of L4-01 ±L4-02.

Closed

Output frequency or motor speed and the frequency reference are both within the range of L4-01 ±L4-02.

Note:

Frequency detection works in forward and reverse. The value of L4-01 is used as the detection level for both directions.

Frequency reference + L4-02

Frequency reference

L4-01 + L4-02

Frequency reference - L4-02

L4-01

L4-01 - L4-02

Output frequency

During

Forward

0 Hz

During Reverse

Output frequency

-L4-01 + L4-02

-L4-01

Frequency reference + L4-02

-L4-01 - L4-02

Frequency reference

Frequency reference - L4-02

User Set

OFF

ON

OFF

ON

ON

OFF

ON

Speed Agree 1

Figure 5.54 User Set Speed Agree 1 Time Chart

Setting 4: Frequency Detection 1

The output opens when the output frequency rises above the detection level set in L4-01 plus the detection width set in L4-02.

The terminal remains open until the output frequency or motor speed fall below the level set in L4-01.

Status

Description

Open

Output frequency or motor speed exceeded L4-01 + L4-02.

Closed

Output frequency or motor speed is below L4-01 or has not exceeded L4-01 + L4-02.

Note:

Frequency detection works in forward and reverse. The value of L4-01 is used as the detection level for both directions.

5

175

5.7 H: Terminal Functions

Output Frequency

or Motor Speed

L4-02

L4-01

L4-01

L4-02

Frequency

ON

OFF

detection 1

Figure 5.55 Frequency Detection 1 Time Chart

Setting 5: Frequency Detection 2

The output closes when the output frequency is above the detection level set in L4-01. The terminal remains closed until the

output frequency or motor speed fall below L4-01 minus the setting of L4-02.

Status

Description

Open

Output frequency or motor speed is below L4-01 minus L4-02 or has not exceeded L4-01.

Closed

Output frequency or motor speed exceeded L4-01.

Note:

Frequency detection works in forward and reverse. The value of L4-01 is used as the detection level for both directions.

Output Frequency

L4-02

or Motor Speed

L4-01

L4-01

L4-02

Frequency

OFF

ON

Detection 2

Figure 5.56 Frequency Detection 2 Time Chart

Setting 6: Drive Ready

The output closes when the drive is ready to operate the motor. The terminal will not close under the conditions listed below,

and all Run commands will be disregarded.

• When the power is shut off

• During a fault

• When the internal power supply of the drive has malfunctioned

• When a parameter setting error makes it impossible to run

• Although stopped, an overvoltage or undervoltage situation occurs

• While editing a parameter in the Programming Mode (when b1-08 = 0)

Setting 7: DC Bus Undervoltage

The output closes when the DC bus voltage or control circuit power supply drops below the trip level set in L2-05. A fault in

the DC bus circuit will also cause the terminal set for “DC bus undervoltage” to close.

Status

Description

Open

DC bus voltage is above the level set to L2-05.

Closed

DC bus voltage has fallen below the trip level set to L2-05.

Setting 8: During Baseblock (N.O.)

The output closes to indicate that the drive is in a baseblock state. While in baseblock, output transistors do not switch and no

main circuit voltage is output.

176

5.7 H: Terminal Functions

Status

Description

Open

Drive is not in a baseblock state.

Closed

Baseblock is being executed.

Setting 9: Frequency Reference Source

Displays the currently selected frequency reference source.

Status

Description

Open

Frequency reference is provided from External reference 1 (b1-01) or External reference 2 (b1-15).

Closed

Frequency reference is being sourced from the digital operator.

Setting A: Run Command Source

Displays the currently selected Run command source.

Status

Description

Open

Run command is provided from External reference 1 (b1-02) or 2 (b1-16).

Closed

Run command is being sourced from the digital operator.

Settings B, 17, 18, and 19: Torque Detection 1 (N.O., N.C.), Torque Detection 2 (N.O., N.C.)

These digital output functions signal an overtorque or undertorque situation to an external device.

Set up the torque detection levels and select the output function from the table below.

Setting

Status

Description

Torque detection 1 (N.O.):

B

Closed

Output current/torque exceeds (overtorque detection) or is below (undertorque detection) the torque value set in

parameter L6-02 for longer than the time specified in parameter L6-03.

Torque detection 1 (N.C.):

17

Open

Output current/torque exceeds (overtorque detection) or is below (undertorque detection) the torque value set in

parameter L6-02 for longer than the time specified in parameter L6-03.

Torque detection 2 (N.O.):

18

Closed

Output current/torque exceeds (overtorque detection) or is below (undertorque detection) the torque value set in

parameter L6-05 for longer than the time specified in parameter L6-06.

Torque detection 2 (N.C.):

19

Open

Output current/torque exceeds (overtorque detection) or is below (undertorque detection) the torque value set in

parameter L6-05 for longer than the time specified in parameter L6-06.

Setting C: Frequency Reference Loss

An output set for this function closes when frequency reference loss is detected.

Setting D: Braking Resistor Fault

An output programmed for this function closes when the dynamic braking resistor (DB) overheats or the braking transistor is

in a fault condition.

Setting E: Fault

The output closes when the drive faults (excluding CPF00 and CPF01 faults).

Setting F: Through Mode

Select this setting when using the terminal in a pass-through mode. When set to F, an output does not trigger any function in

the drive. Setting F, however, still allows the status of the output terminal (open or closed) to be read by a PLC via a

communication option or MEMOBUS/Modbus communications.

5

Setting 10: Minor Fault (Alarm)

The output closes when a minor fault (alarm) condition is present.

Setting 11: Fault Reset Command Active

The output closes when there is an attempt to reset a fault situation from the control circuit terminals, via serial communications,

or using a communications option card.

Setting 12: Timer Output

This setting configures a digital output terminal as the output for the timer function.

177

5.7 H: Terminal Functions

Setting 13: Speed Agree 2 (f

ref /fout Agree 2)

The output closes when the actual output frequency is within the speed agree width (L4-04) of the current frequency reference,

regardless of the direction.

Status

Description

Open

Output frequency or motor speed does not match the frequency reference while the drive is running.

Closed

Output frequency or motor speed is within the range of frequency reference ±L4-04.

Note:

Detection works in forward and reverse.

Frequency

reference

Output Frequency

L4-04

or Motor Speed

L4-04

Speed Agree 2

OFF

ON

Figure 5.57 Speed Agree 2 Time Chart

Setting 14: User-Set Speed Agree 2 (f_ref /f_set Agree 2)

The output closes when the actual output frequency and the frequency reference are within the speed agree width (L4-04) of

the programmed speed agree level (L4-03).

Status

Description

Open

Output frequency or motor speed and frequency reference are both outside the range of L4-03 ±L4-04.

Closed

Output frequency or motor speed and the frequency reference are both within the range of L4-03 ±L4-04.

Note:

The detection level L4-03 is a signed value; detection works in the specified direction only.

Frequency reference + L4-04

Frequency reference

L4-03 + L4-04

Frequency reference - L4-04

L4-03

L4-03 - L4-04

Output frequency

During

Forward

0 Hz

Output frequency

Frequency

reference

User Set

OFF

OFF

ON

ON

Speed Agree 2

Figure 5.58 User-Set Speed Agree 2 Example with a Positive L3-04 Value

Setting 15: Frequency Detection 3

The output opens when the output frequency rises above the detection level set in L4-03 plus the detection with set in L4-04.

The terminal remains open until the output frequency or motor speed falls below the level set in L4-03. The detection level

L4-03 is a signed value; detection works in the specified direction only.

Status

Description

Open

Output frequency or motor speed exceeded L4-03 plus L4-04.

Closed

Output frequency or motor speed is below L4-03 or has not exceeded L4-03 plus L4-04.

178

5.7 H: Terminal Functions

Output Frequency

or Motor Speed

L4-04

L4-03

Frequency

ON

OFF

detection 3

Figure 5.59 Frequency Detection 3 Example with a Positive L3-04 Value

Setting 16: Frequency Detection 4

The output closes when the output frequency is above the detection level set in L4-03. The terminal remains closed until the

output frequency or motor speed falls below L4-03 minus the setting of L4-04.

Status

Description

Open

Output frequency or motor speed is below L4-03 minus L4-04 or has not exceeded L4-03.

Closed

Output frequency or motor speed exceeded L4-03.

Note:

The detection level L4-03 is a signed value; detection works in the specified direction only.

Output Frequency

L4-04

or Motor Speed

L4-03

Frequency

OFF

ON

Detection 4

Figure 5.60 Frequency Detection 4 Example with Positive L3-04 Value

Setting 1A: During Reverse

A digital output set for “During reverse” closes when the drive is running the motor in the reverse direction.

Status

Description

Open

Motor is being driven in the forward direction or stopped.

Closed

Motor is being driven in reverse.

Output frequency

5

FWD Run command

REV Run command

OFF

ON

During Reverse

time

Figure 5.61 Reverse Direction Output Example Time Chart

179

5.7 H: Terminal Functions

Setting 1B: During Baseblock (N.C.)

The output opens to indicate that the drive is in a baseblock state. While Baseblock is executed, output transistors do not

operate and no main circuit voltage is output.

Status

Description

Open

Baseblock is being executed.

Closed

Drive is not in a baseblock state.

Setting 1E: Restart Enabled

An output set for “Restart enabled” closes when the drive attempts to restart after a fault has occurred.

The fault restart function allows the drive to automatically clear a fault. The terminal set to 1E will close after the fault is

cleared and the drive has attempted to restart. If the drive cannot successfully restart within the number of attempts permitted

by L5-01, a fault will be triggered and the terminal set to 1E will open.

Setting 1F: Motor Overload Alarm (oL1)

The output closes when the motor overload level estimated by the oL1 fault detection exceeds 90% of the oL1 detection level.

Setting 20: Drive Overheat Pre-Alarm (oH)

The output closes when the drive heatsink temperature reaches the level specified by parameter L8-02.

Setting 22: Mechanical Weakening Detection

The output closes when a mechanical weakening situation is detected.

Setting 2F: Maintenance Period

The output closes when the cooling fan, DC bus capacitors, or DC bus pre-charge relay may require maintenance as determined

by the estimated performance life span of those components. Components performance life is displayed as a percentage on

the digital operator screen. Refer to Performance Life Monitors Used for Component Replacement on page 292.

Setting 37: During Frequency Output

The output closes when the drive is outputting a frequency.

Status

Description

Open

Drive is stopped or one of the following functions is being performed: baseblock, DC Injection Braking, Short Circuit Braking.

Closed

Drive is outputting frequency.

OFF

ON

run command

baseblock

OFF

ON

command

output

frequency

OFF

ON

during run

during frequency

OFF

ON

output

Figure 5.62 During Frequency Output Time Chart

Setting 38: Drive Enable

Reflects the status of a digital input configured as a “Drive enable” input (H1-oo = 6A). If that digital input closes, then the

digital output set for “Drive enable” will also close.

Setting 39: Watt Hour Pulse Output

Outputs a pulse to indicate the watt hours.

Setting 3C: LOCAL/REMOTE Status

The output terminal closes while the drive is set for LOCAL and opens when in REMOTE.

180

5.7 H: Terminal Functions

Setting 96: High Feedback

Output terminal closes during a “High Feedback Condition” as defined by P1-11 and P1-14, or during a “High FB / Water”

Fault, or during a “High Feedback” Alarm.

Setting 97: Low Feedback

Output terminal closes during a “Low Feedback Condition” as defined by P1-08 and P1-14, or during a “Low FB/Water”

Fault, or during a “Low Feedback” Alarm.

Setting A2: Sleep Active

Output terminal closes when drive is not running due to the Sleep function (does not include Sleep Boost).

Setting A3: Start Delay

Output terminal closes when feedback has risen above the start level (or fallen below the start level for Inverse PID) and the

start timer is timing.

Setting A4: Pre-Charge

Output terminal closes when the drive is in Pre-Charge mode.

Setting A5: Anti-Jam Active

Detects and expels solids that are preventing the pump impeller from turning.

WARNING! Sudden Movement Hazard. The Anti-Jam function can force the motor to briefly run in the reverse direction and may cause

injury even if parameter b1-04 is set to “Reverse Disabled”. Be sure all personnel are clear of rotating machinery.

Setting A9: Thrust Mode

Output terminal closes when the Thrust Bearing feature is active (output frequency is between zero and P4-12).

Setting AA: Utility Start Delay

Output terminal closes when the drive is stopped and waiting for the utility delay timer to expire. This setting is configured

by P4-17.

Settings 100 to 1AA: Functions 0 to AA with Inverse Output

These settings have the same function as settings 0 to AA but with inverse output. Set as 1oo, where the “1” indicates inverse

output and the last two digits specify the setting number of the function.

Examples:

• For inverse output of “8: During baseblock”, set 108.

• For inverse output of “4A: During KEB” set 14A.

n H2-06: Watt Hour Output Unit Selection

When one of the multi-function terminals is set to output the number of watt hours (H2-01/02/03 = 39), parameter H2-06

determines the units for the output signal.

The output is intended to drive a watt hour meter or a PLC input by a 200 ms pulse signal. A pulse is output according to the

kWh unit selected in H2-06.

No.

Parameter Name

Setting Range

Default

0: 0.1 kWh units

1: 1 kWh units

H2-06

Watt Hour Output Unit Selection

2: 10 kWh units

0

3: 100 kWh units

4: 1000 kWh units

n H3-01: Terminal A1 Signal Level Selection

Selects the input signal level for analog input A1.

No.

Name

Setting Range

Default

H3-01

Terminal A1 Signal Level Selection

0, 1

0

Setting 0: 0 to 10 Vdc

The input level is 0 to 10 Vdc. The minimum input level is limited to 0%, so that a negative input signal due to gain and bias

settings will be read as 0%.

182

5.7 H: Terminal Functions

Setting 1: 0 to 10 Vdc Bipolar

The input level is -10 to 10 Vdc. If the resulting voltage is negative after being adjusted by gain and bias settings, then the

motor will rotate in reverse.

n H3-02: Terminal A1 Function Selection

Selects the input signal level for analog input A1.

No.

Name

Setting Range

Default

H3-02

Terminal A1 Function Selection

0 to 41

0

n H3-03, H3-04: Terminal A1 Gain and Bias Settings

Parameter H3-03 sets the level of the selected input value that is equal to 10 Vdc input at terminal A1 (gain).

Parameter H3-04 sets the level of the selected input value that is equal to 0 V input at terminal A1 (bias).

Use both parameters to adjust the characteristics of the analog input signal to terminal A1.

No.

Name

Setting Range

Default

H3-03

Terminal A1 Gain Setting

-999.9 to 999.9%

100.0%

H3-04

Terminal A1 Bias Setting

-999.9 to 999.9%

0.0%

Setting Examples

•

Gain H3-03 = 200%, bias H3-04 = 0, terminal A1 as frequency reference input (H3-02 = 0):

A 10 Vdc input is equivalent to a 200% frequency reference and 5 Vdc is equivalent to a 100% frequency reference. Since

the drive output is limited by the maximum frequency parameter (E1-04), the frequency reference will be equal to E1-04

above 5 Vdc.

H3-01 = 0

H3-01 = 1

Gain = 200 %

Gain = 200 %

Frequency

100%

reference

E1-04

-10 V

-5 V

100 %

0 V

5 V

10 V

E1-04

-100%

E1-04

Bias = 0 %

Gain = -200 %

0 V

5 V

10 V

Figure 5.63 Frequency Reference Setting by Analog Input with Increased Gain

•

Gain H3-03 = 100%, bias H3-04 = -25%, terminal A1 as frequency reference input:

An input of 0 Vdc will be equivalent to a -25% frequency reference.

When parameter H3-01 = 0, the frequency reference is 0% between 0 and 2 Vdc input.

When parameter H3-01 = 1, the motor will rotate in reverse between -10 and 2 Vdc input.

H3-01 = 0

H3-01 = 1

100 %

5

100%

Frequency

H3-01 = 0

reference

-10 V -6.0 V

2.0 V

10 V

-25%

Analog Input

Voltage

0

2.0 V

10 V

Analog Input

-100%

-25%

Voltage

E1-04

H3-01 = 1

-150%

Figure 5.64 Frequency Reference Setting by Analog Input with Negative Bias

183

5.7 H: Terminal Functions

n H3-09: Terminal A2 Signal Level Selection

Selects the input signal level for analog input A2. Set DIP Switch S1-2 on the terminal board accordingly for a voltage input

or current input.

No.

Name

Setting Range

Default

H3-09

Terminal A2 Signal Level Selection

0 to 3

2

Setting 0: 0 to 10 Vdc

The input level is 0 to 10 Vdc. Refer to Setting 0: 0 to 10 Vdc on page 182.

Setting 1: 0 to 10 Vdc Bipolar

The input level is -10 to 10 Vdc. Refer to Setting 1: 0 to 10 Vdc Bipolar on page 183.

Setting 2: 4 to 20 mA

The input level is 4 to 20 mA. Negative input values by negative bias or gain settings will be limited to 0%.

Setting 3: 0 to 20 mA

The input level is 0 to 20 mA. Negative input values by negative bias or gain settings will be limited to 0%.

n H3-10: Terminal A2 Function Selection

Determines the function assigned to analog input terminal A2.

No.

Name

Setting Range

Default

H3-10

Terminal A2 Function Selection

0 to 32

B

n H3-11, H3-12: Terminal A2 Gain and Bias Setting

Parameter H3-11 sets the level of the input value selected that is equal to 10 Vdc input or 20 mA input to terminal A2.

Parameter H3-12 sets the level of the input value selected that is equal to 0 V, 4 mA or 0 mA input at terminal A2.

Use both parameters to adjust the characteristics of the analog input signal to terminal A2. The setting works in the same way

as parameters H3-03 and H3-04 for analog input A1.

No.

Name

Setting Range

Default

H3-11

Terminal A2 Gain Setting

-999.9 to 999.9%

100.0%

H3-12

Terminal A2 Bias Setting

-999.9 to 999.9%

0.0%

n H3-13: Analog Input Filter Time Constant

Parameter H3-13 sets the time constant for a first order filter that will be applied to both analog inputs A1 and A2.

No.

Name

Setting Range

Default

H3-13

Analog Input Filter Time Constant

0.00 to 2.00 s

0.03 s

An analog input filter can be used to prevent erratic drive control when a “noisy” analog reference is used. The drive operation

becomes more stable the longer the time programmed, but it becomes less responsive to rapidly changing analog signals.

n Multi-Function Analog Input Terminal Settings for A1 and A2 (H3-02 and H3-10)

This section describes the various functions that can be assigned to terminals A1 and A2 by setting H3-02 and H3-10.

Note:

The scaling of all input functions depends on the gain and bias settings for the analog inputs. Set these to appropriate values when selecting

and adjusting analog input functions.

Table 5.25 Multi-Function Input Terminal Settings

Setting

Function

Page

Setting

Function

Page

0

Frequency Bias

185

E

Motor Temperature (PTC input)

185

1

Frequency Gain

185

F

Not Used

185

2

Auxiliary Frequency Reference

185

16

Differential PID Feedback

185

4

Output Voltage Bias

185

1F

Not Used

185

7

Overtorque/Undertorque Detection Level

185

20

HAND Frequency Reference

185

B

PID Feedback

185

41

Output Voltage Gain

185

C

PID Setpoint

185

184

5.7 H: Terminal Functions

An internal 0.3 second delay has been added to prevent sudden, drastic change to the V/f pattern.

Note:

When an input terminal is assigned to adjust the Output Voltage Gain (H3-oo = 41), a voltage reference from MEMOBUS/Modbus is

ignored.

n H3-14: Analog Input Terminal Enable Selection

Determines which of the analog input terminals will be enabled or disabled when a digital input programmed for “Analog

input enable” (H1-oo = C) is closed. When H1-oo ≠ C, all of the input terminals are enabled all of the time. Terminals not

set as the target are not influenced by input signals.

No.

Name

Setting Range

Default

H3-14

Analog Input Terminal Enable Selection

1, 2, 7

7

Setting 1: Terminal A1 only

Setting 2: Terminal A2 only

Setting 7: All Terminals Enabled

n H3-16/H3-17: Terminal A1/A2 Offset

Determines the amount of offset to be used to calibrate analog input signals from the terminals A1 and A2.

Enter a 0 V signal to terminal A1. Next adjust the offset in H3-16 until the monitor U1-13 for the terminal A1 input voltage

reads 0.0%.

The process is the same for terminal A2. Enter a 0 V signal, and adjust the offset for terminal A2 in H3-17 until the monitor

U1-14 for terminal A2 input voltage reads 0.0%.

No.

Name

Setting Range

Default

H3-16

Terminal A1 Offset

-500 to 500

0

H3-17

Terminal A2 Offset

-500 to 500

0

u H4: Multi-Function Analog Output Terminals

These parameters assign a function to analog output terminal AM for monitoring a specific aspect of drive performance.

n H4-01: Multi-Function Analog Terminal AM Monitor Selection

Sets the desired drive monitor parameter Uo-oo to output as an analog value via terminal AM. Refer to U: Monitors on

page 369 for a list of all monitors. The “Analog Output Level” columns indicates if a monitor can be applied for analog output.

Example: Enter “103” for U1-03.

No.

Name

Setting Range

Default

H4-01

Multi-Function Analog 1 (Terminal AM Monitor Selection)

000 to 999

102

A setting of 031 or 000 applies no drive monitor to the analog output. With this setting the terminal AM output level can be

set by a PLC via a communication option or MEMOBUS/Modbus communications (through mode).

n H4-02/H4-03: Multi-Function Analog Output Terminal AM Gain/Bias

Parameter H4-02 sets the output voltage that is equal to 100% of the monitor value. Parameter H4-03 sets the output voltage

equal to 0% of the monitor value.

Both values are set as a percentage of 10 V. The minimum output voltage for terminal AM is 0 V, the maximum is 10 Vdc.

Figure 5.65 illustrates the function of the gain and bias settings.

No.

Name

Setting Range

Default

H4-02

Multi-Function Analog Output Terminal AM Gain

-999.9 to 999.9%

100.0%

H4-03

Multi-Function Analog Output Terminal AM Bias

-999.9 to 999.9%

0.0%

186

5.7 H: Terminal Functions

Bias

30%

Gain 100%

10 V

10 V

Gain 150%

Terminal AM

Bias 0%

Terminal AM

output

output

voltage

voltage

Gain 100%

5 V

Bias 0%

Bias 0%

3 V

Gain 100%

Gain 50%

Bias 0%

0 V

0 V

0%

Monitor value

100%

0%

Monitor value

100%

Figure 5.65 Analog Output Gain/Bias Setting

When viewing the settings for H4-02, terminal AM will output a voltage that is equal to 100% of the monitor value (considering

the present setting). When viewing the settings for H4-03, terminal AM will output a voltage that is equal to 0% of the monitor

value.

u H6: Pulse Train Input/Output

A one track pulse train signal with a maximum frequency of 32 kHz can be input to the drive at terminal RP. This pulse train

signal can be used as the frequency reference, for PID functions, or as the speed feedback signal in V/f Control.

The pulse output monitor terminal MP, which can be used in sinking or sourcing mode, can output drive monitors values as

a pulse train signal with a maximum frequency of 32 kHz.

Use parameters H6-oo to scale and set up the function for the pulse input terminal RP and pulse output terminal MP.

n H6-01: Pulse Train Input Terminal RP Function Selection

Selects the function of pulse train input terminal RP.

No.

Name

Setting Range

Default

H6-01

Pulse Train Input Terminal RP Function Selection

0 to 4

0

Setting 0: Frequency Reference

If the pulse input is set for this function and the frequency reference source is set to pulse input (b1-01/15 = 4), the drive reads

the frequency value from terminal RP.

Setting 1: PID Feedback Value

Using this setting, the feedback value for PID control can be supplied as a pulse signal at terminal RP. Refer to b5: PID

Control on page 129 for details on PID control.

Setting 2: PID Setpoint Value

Using this setting, the setpoint value for PID control can be supplied as a pulse signal at terminal RP. Refer to b5: PID

Control on page 129 for details on PID control.

Setting 3: Speed Feedback for V/f Control (V/f Control only, Motor 1 only)

This setting enables simple speed feedback for V/f Control. A pulse signal can be used to input the motor speed to the drive

and thereby improve the speed control accuracy. Note that this speed feedback can only be a one track signal that cannot be

used for direction detection. The drive needs a separate motor rotation direction signal.

n H6-02: Pulse Train Input Terminal RP Scaling

5

The pulse train input scaling parameter sets the terminal RP input frequency that is equal to 100% of the signal selected as the

input value in parameter H6-01.

No.

Name

Setting Range

Default

H6-02

Pulse Train Input Scaling

100 to 32000 Hz

1440 Hz

n H6-03: Pulse Train Input Terminal RP Gain

Sets the level of the value selected in H6-01 when a pulse train signal with the frequency set in H6-02 is input to terminal RP.

No.

Name

Setting Range

Default

H6-03

Pulse Train Input Gain

0.0 to 1000.0%

100.0%

187

5.7 H: Terminal Functions

n H6-04: Pulse Train Input Terminal RP Bias

Sets the level of the value selected in H6-01 when a 0 Hz signal is input to terminal RP.

No.

Name

Setting Range

Default

H6-04

Pulse Train Input Bias

-100.0 to 100.0%

0.0%

n H6-05: Pulse Train Input Terminal RP Filter Time

Sets the pulse train input filter time constant in seconds.

The pulse train input filter helps prevent noise interference from causing erroneous operation when operating the drive within

the pulse train signal.

Increasing the filter setting time increases the effectiveness of the noise prevention, however, this also increasingly slows drive

response time.

No.

Name

Setting Range

Default

H6-05

Pulse Train Input Filter Time

0.00 to 2.00 s

0.10 s

n H6-06: Pulse Train Output Terminal MP Monitor Selection

Selects the pulse train monitor output terminal MP function. The set value ooo is equal to the numerals in Uo-oo of the

selected monitor. Refer to U: Monitors on page 369 for a complete list of monitors. Selectable monitor items are listed below.

No.

Name

Setting Range

Default

000, 031, 101, 102, 105, 116,

H6-06

Pulse Train Output Terminal MP Monitor Selection

102

501, 502, 801 to 809

n H6-07: Pulse Train Output Terminal MP Monitor Scaling

Pulse train monitor scaling sets the output frequency at terminal MP when the monitor item is 100%. Set H6-06 to 102 and

H6-07 to 0 to make the pulse train monitor output synchronous to the output frequency.

No.

Name

Setting Range

Default

H6-07

Pulse Train Input Monitor Scaling

0 to 32000 Hz

1440 Hz

n H6-08: Pulse Train Input Minimum Frequency

Sets the minimum output frequency detected by the pulse train input. Increasing this setting reduces the time the drive needs

to react to changes in the input signal.

• The pulse input value becomes 0 when the pulse input frequency falls below this level.

• Enabled when H6-01 = 0, 1, or 2.

• When simple speed feedback in V/f Control is set as the function for terminal RP (H6-01 = 3), the minimum frequency

becomes the detection time for PG disconnect (F1-14).

No.

Name

Setting Range

Default

H6-08

Pulse Train Input Minimum Frequency

0.1 to 1000.0 Hz

0.5 Hz

188

5.8 L: Protection Functions

5.8

L: Protection Functions

u L1: Motor Protection Functions

n L1-01: Motor Overload Protection Selection

The drive has an electronic overload protection function that estimates the motor overload level based on output current, output

frequency, thermal motor characteristics, and time. An oL1 fault will be triggered when motor overload is detected.

L1-01 sets the overload protection function characteristics according to the motor being used.

No.

Name

Setting Range

Default

L1-01

Motor Overload Protection Selection

0 to 3; 6

1

Note:

1. When the motor protection function is enabled (L1-01 is not set to zero), an oL1 alarm can be output through one of the multi-function

outputs by setting H2-01 to 1F. The output will close when the motor overload level reaches 90% of the oL1 detection level.

2. Select a method to protect the motor from overheat by setting L1-01 to a value between 1 and 3; use setting 6 when running a single

motor from the drive. An external thermal relay is not required.

Setting 0: Disabled - Motor Overload Protection is not Provided

This setting should be used if no motor overheat protection is desired or if multiple motors are connected to one drive. In this

case it is recommended that you install a thermal relay for each motor as show in Figure 5.66

Drive

Power

M1

supply

MC1

L10

M2

MC2

L20

MC1, MC2: Magnetic contactors

L10, L20: Thermal relays

Figure 5.66 Example of Protection Circuit Design for Multiple Motors

NOTICE: Protect each motor with individual thermal overloads when multiple motors are connected to one drive. Failure to comply could

result in motor damage. Disable the electronic overload protection of the drive (L1-01 = “0: Disabled”) and protect each motor with individual

motor thermal overloads.

Setting 1: General Purpose Motor (standard self-cooled)

Because the motor is self-cooled, the overload tolerance drops when the motor speed is lowered. The drive appropriately

adjusts the electrothermal trigger point according to the motor overload characteristics, protecting the motor from overheat

throughout the entire speed range.

Overload Tolerance

Cooling Ability

Overload Characteristics

Motor designed to operate from line

Continuous operation at less than line

5

power.

power frequency with 100% load can

Motor cooling is most effective when

trigger motor overload protection

running at rated nameplate base

(oL1). A fault is output and the motor

frequency (check the motor

will coast to stop.

specifications).

Setting 2: Drive Dedicated Motor (constant torque, 1:10)

Use this setting when operating a drive duty motor with a torque ratio of 1:10. This motor type is allowed to run with 100%

load from 10% up to 100% speed. Running slower speeds with full load can trigger an overload fault.

189

5.8 L: Protection Functions

Overload Tolerance

Cooling Ability

Overload Characteristics

150

Rated Speed=100% Speed

60 sec.

100

Motor is designed to effectively cool

Continuous operation with 100% load

55

itself at speeds as low as 6 Hz.

from 6 Hz to 50/60 Hz.

50

A

Continuous

D

B

0

110

100120 167 200

(60 Hz)

Speed (%)

Setting 3: Vector Motor (constant torque, 1:100)

Use this setting when operating a drive dedicated motor with a torque ratio of 1:100. This motor type is allowed to run with

100% load from 1% up to 100% speed. Running slower speeds with full load can trigger an overload fault.

Overload Tolerance

Cooling Ability

Overload Characteristics

150

Rated Speed=100% Speed

60 sec.

100

90

Motor is designed to effectively cool

Continuous operation with 100% load

itself at speeds as low as approximately

50

Continuous

from 0.6 Hz to 50/60 Hz.

A

0.6 Hz.

B

D

0

1

100120 167 200

(60 Hz)

Speed (%)

Setting 6: General-Purpose Motor

Note:

General-purpose motors are designed with a base speed that operates at line frequency (50/60 Hz depending on geographic region).

Because the motor is self-cooled, the overload tolerance drops when the motor speed is lowered. The drive appropriately

adjusts the electrothermal trigger point according to the motor overload characteristics and protects the motor from overheat

throughout the entire speed range.

Overload Tolerance

Cooling Ability

Overload Characteristics

150

Rated Speed=100% Speed

60 s

A: Max. speed for 200LJ and above

B: Max. speed for 160MJ to 180 LJ

100

C: Max. speed for 132MJ and below

90

Motor designed to operate from line

Continuous operation at less than line

power. Motor cooling is most effective

power frequency with 100% load can

when running at rated base frequency

trigger motor overload protection

60

50

Continuous

(check the motor nameplate or

(oL1). A fault is output and the motor

A

specifications)

will coast to stop.

B

C

05 33

100 120 167 200

Speed (%)

n L1-02: Motor Overload Protection Time

Sets the time for the drive to shut down on motor overload (oL1) when the motor is running with excessive current. Enter the

time the motor can withstand operating at 150% current after previously running at 100% current (hot motor overload

condition). This parameter rarely requires adjustment.

No.

Name

Setting Range

Default

L1-02

Motor Overload Protection Time

0.1 to 5.0 minutes

1.0 minutes

190

5.8 L: Protection Functions

Defaulted to operate with an allowance of 150% overload operation for one minute in a hot start after continuous operation

at 100%.

Figure 5.67 illustrates an example of the electrothermal protection operation time using a general-purpose motor operating at

the value of E1-06, Motor Base Speed, with L1-02 set to one minute.

Motor overload protection operates in the area between a cold start and a hot start.

• Cold start: Characteristics of motor protection operation time in response to an overload situation that was suddenly reached

when starting a stationary motor.

• Hot start: Characteristics of motor protection operation time in response to an overload situation that occurred while the

motor was operating continuously at or below its rated current.

Operation time (minutes)

10

7

3

Cold start

(characteristics when an

overload occurs at a

1

complete stop)

Hot start

0.4

(characteristics when an

overload occurs during

continuous operation at 100%)

0.1

Motor current (%)

0

100

150

200

E2-01 = 100% motor current

Figure 5.67 Protection Operation Time for General Purpose Motors at the Rated Output Frequency

n Motor Protection Using a Positive Temperature Coefficient (PTC)

A motor PTC can be connected to an analog input of the drive. This input is used by the drive for motor overheat protection.

When the motor overheat alarm level is reached, an oH3 alarm will be triggered and the drive will continue operation as

selected in L1-03. When the overheat fault level is reached an oH4 fault is triggered, a fault signal will be output and the drive

will stop the motor using the stop method determined in L1-04.

Figure 5.68 shows a PTC connection example for analog input A2. If using analog input A2, make sure to set DIP switch S1

on the terminal board for voltage input when using this function.

Multi-function input

Drive

MA

+V

Multi-function

MB

(+10.5V, 20 mA )

output (contact)

MC

Branch

resistor

P1

12 k

A2 (0-10 V)

PTC

P2

Multi-function

5

thermistor

output (photocoupler)

AC

PC

Figure 5.68 Connection of a Motor PTC

The PTC must have the following characteristics for one motor phase. Normally a motor is protected by three PTCs connected

in series.

191

5.8 L: Protection Functions

Tr’

Figure 5.69 Motor PTC Characteristics

Overheat detection using a PTC can be set up by parameters L1-03/04/05 as explained below.

n L1-03: Motor Overheat Alarm (oH3) Operation Selection

Sets the drive operation when the PTC input signal reaches the motor overheat alarm level. (PTC input level: Tr - 5 °C)

No.

Name

Setting Range

Default

L1-03

Motor Overheat Alarm Operation Selection

0 to 3

3

Setting 0: Ramp to Stop

The drive stops the motor using the active deceleration time.

Setting 1: Coast to Stop

The drive output is switched off and the motor coasts to stop.

Setting 2: Fast-stop

The drive stops the motor using the Fast-stop time set in parameter C1-09.

Setting 3: Alarm Only

The operation is continued and an oH3 alarm is displayed on the digital operator

192

5.8 L: Protection Functions

n L1-04: Motor Overheat Fault (oH4) Operation Selection

Sets the drive operation when the PTC input signal reaches the motor overheat fault level. (PTC input level: Tr + 5 °C)

No.

Name

Setting Range

Default

L1-04

Motor Overheat Fault Operation Selection

0 to 2

1

Setting 0: Ramp to Stop

The drive stops the motor using the active deceleration time.

Setting 1: Coast to Stop

The drive output is switched off and the motor coasts to stop.

Setting 2: Fast-stop

The drive stops the motor using the Fast-stop time set in parameter C1-09.

n L1-05: Motor Temperature Input Filter Time

Used to set a filter on the PTC signal in order to prevent a motor overheat fault from being mistakenly detected.

No.

Name

Setting Range

Default

L1-05

Motor Temperature Input Filter Time

0.00 to 10.00 s

0.20 s

n L1-13: Continuous Electrothermal Operation Selection

Determines whether to hold the current value of the electrothermal motor protection (L1-01) when the power supply is

interrupted.

No.

Name

Setting Range

Default

L1-13

Continuous Electrothermal Operation Selection

0 or 1

1

Setting 0: Disabled

Setting 1: Enabled

n L1-22: Leakage Current Filter Time Constant 1

Note:

Available only when C6-02 is set to B. To display this parameter, first set C6-02 to B.

Sets the time constant for the filter applied to motor overload detection current or monitor current for constant speed operation.

Leakage current can incorrectly trigger motor overload fault oL1 or result in incorrect monitor reading. Increase this setting

if erroneous detection occurs or if the monitor display is incorrect.

NOTICE: Setting parameter L1-22 too high may cause the drive to detect motor overload too slowly and burn out the motor. Be sure to set

L1-22 to an appropriate value for the application.

No.

Name

Setting Range

Default

L1-22

Leakage Current Filter Time Constant 1

0.0 to 60.0 s

20.0 s

n L1-23: Leakage Current Filter Time Constant 2

Note:

Available only when C6-02 is set to B. To display this parameter, first set C6-02 to B.

Sets the time constant for the filter applied to monitor current during acceleration and deceleration. Leakage current can result

in incorrect monitor reading. Increase this setting if the monitor display is incorrect.

Note:

Setting parameter L1-23 too high may cause the current monitor to take too long to read the initial current level. Check the operation sequence

5

being used if this is a problem.

No.

Name

Setting Range

Default

L1-23

Leakage Current Filter Time Constant 2

0.0 to 60.0 s

1.0 s

u L2: Momentary Power Loss Ride-Thru

n L2-01: Momentary Power Loss Operation Selection

When a momentary power loss occurs (DC bus voltage falls below the level set in L2-05), the drive can be set to automatically

return to the operation it was performing when the power went out based on certain conditions.

193

5.8 L: Protection Functions

No.

Name

Setting Range

Default

L2-01

Momentary Power Loss Operation Selection

0 to 2

0

Setting 0: Disabled (default)

If power is not restored within 15 ms, a Uv1 fault will result and the drive will stop the motor.

Setting 1: Enabled, Recover Within L2-02

When a momentary power loss occurs, the drive will attempt to restart and perform Speed Search if power is restored within

the period of time set to parameter L2-02. If power is not restored within the time set to L2-02 (i.e. DC bus voltage level

remains below Uv1 detection level L2-05), then a Uv1 fault is triggered and the drive output will be shut off.

Setting 2: Recover as Long as CPU has Power

Drive will try to restart as long as the CPU still has power. This allows for a longer ride-through time than setting L2-01 to 1.

A Uv1 fault is not triggered. This setting should also be used if the KEB function is utilized.

Note:

1. The amount of time the drive is capable of recovering after a power loss is determined by the capacity of the drive. Drive capacity

determines the upper limit for L2-02.

2. When L2-01 is set to 1 or 2, and a magnetic contactor between motor and drive is used, be sure that the magnetic contactor is kept close

as long as the drive attempts to restart.

3. When L2-01 is set to 1 or 2, “Uv” will flash on the operator while the drive is attempting to recover from a momentary power loss. A

fault signal is not output at this time.

n L2-02: Momentary Power Loss Ride-Thru Time

Set the time in which the power has to return before a Uv fault is tripped. This parameter is valid only if L2-01 = 1.

No.

Name

Setting Range

Default

Determined by

L2-02

Momentary Power Loss Ride-Thru Time

0.0 to 25.5 s

o2-04.

n L2-03: Momentary Power Loss Minimum Baseblock Time

Sets the minimum baseblock time when power is restored following a momentary power loss. This determines the time it takes

for the leftover voltage in the motor to dissipate. Increase this setting if overcurrent or overvoltage occur at the beginning of

Speed Search after a power loss or DC Injection Braking. If L2-03 > L2-02, then the drive will restart after the time set to

L2-03 has passed from the beginning of the power loss.

No.

Name

Setting Range

Default

Determined by

L2-03

Momentary Power Loss Minimum Baseblock Time

0.1 to 5.0 s

o2-04

n L2-04: Momentary Power Loss Voltage Recovery Ramp Time

Sets the time constant used to ramp up the voltage during Speed Search. The setting value determines the time for a change

from zero to the maximum voltage.

No.

Name

Setting Range

Default

Determined by

L2-04

Momentary Power Loss Voltage Recovery Ramp Time

0.0 to 5.0 s

o2-04

n L2-05: Undervoltage Detection Level

Determines the voltage at which a Uv1 fault is triggered or at which the KEB function is activated.

No.

Name

Setting Range

Default

L2-05 ^<1>

Undervoltage Detection Level

150 to 210 V

190 V ^<2>

<1> Values are for 200 V class drives and must be doubled for 400 V class drives.

<2> This value is initialized when E1-01 is changed.

This setting rarely needs to be changed.

When setting L2-05 is lower than the default setting, be sure to install an AC reactor option to the input side of the power

supply to prevent damage to drive circuitry.

194

5.8 L: Protection Functions

Braking

Resistor

B1

B2

L1

R/L1

U/T1

L2

S/L2

V/T2

M

L3

T/L3

W/T3

UV Detection

Relay

S6 - KEB command 1 or 2

S1 - Start command

SC

Figure 5.71 KEB Function Wiring Example

Note:

Make sure the Run command is not switched off when momentary power loss occurs. If the Run command is shut off, the drive will not

accelerate back to speed when the power is restored.

KEB Related Adjustment Parameters

The KEB 1 functions can be adjusted using the following parameters:

• L2-05, Undervoltage Detection Level

• L2-06 or C1-09, KEB Deceleration Time or Fast-stop Time

• L2-07, KEB Acceleration Time

• L2-08, Frequency Gain at KEB Start

Use the following parameters when adjusting the KEB 2 function:

• L2-05, Undervoltage Detection Level

• L2-08, Frequency Gain at KEB Start

• L2-11, Desired DC Bus Voltage during KEB

• L3-20, Main Circuit DC Voltage Adjustment Gain

Sets the proportional gain for controlling the DC bus voltage and keeping it at the desired level during KEB 2 operation.

• L3-21, Accel/Decel Rate Calculation Gain

Sets the gain used to calculate the acceleration or deceleration rate when KEB 2 is active.

• L3-24, Motor Acceleration Time

This value is used to estimate the regenerative power fed back from the mechanics to the drive DC bus during KEB 2.

• L3-25, Load Inertia Ratio

This value is used to estimate the regenerative power fed back from the mechanics to the drive DC bus during KEB 2.

n L2-06: KEB Deceleration Time (KEB 1 only)

Sets the time to decelerate from the frequency reference when the KEB command was input down to zero speed. It can be

used to decelerate different drives down to zero in the same time and thereby keep a constant speed ratio.

When L2-06 is set to 0.0 s, the time set in parameter C1-09 (set for deceleration from maximum frequency to zero) is used for

the deceleration.

No.

Name

Setting Range

Default

L2-06

KEB Deceleration Time

0.0 to 200.0 s

0.0 s

n L2-07: KEB Acceleration Time (KEB 1 only)

Sets the time to reaccelerate from the speed when KEB was deactivated to the frequency reference. It can be used to accelerate

different drives up to their frequency reference in the same time and thereby keep a constant speed ratio.

When set to 0, the drive will accelerate back up to speed according to parameters C1-01 through C1-04 (set for acceleration

from zero to maximum frequency).

196

5.8 L: Protection Functions

No.

Name

Setting Range

Default

L2-07

KEB Acceleration Time

0.0 to 25.5 s

0.0 s

n L2-08: Frequency Gain at KEB Start (KEB 1 only)

When KEB 1 is activated, the output frequency is reduced in a single step in order to quickly get the motor into a regenerative

state. The amount of this frequency reduction can be calculated using the following formula:

Amount of reduction = Slip frequency prior to KEB x (L2-08/100) x 2

No.

Name

Setting Range

Default

L2-08

Minimum Frequency Gain at KEB Start

0 to 300%

100%

n L2-11: Desired DC Bus Voltage during KEB (KEB 2 only)

Sets the desired voltage in the DC bus during KEB 2 operation.

No.

Name

Setting Range

Default

L2-11

Desired DC Bus Voltage during KEB

150 to 400 V ^<1>

E1-01 x 1.22

<1> Values are for 200 V class drives and must be doubled for 400 V class drives.

u L3: Stall Prevention

When the load is too high or acceleration and deceleration times are too short, the motor may be unable to keep up with the

frequency reference, resulting in excessive slip. This “stalling” makes it impossible to decelerate or accelerate. The drive can

prevent the motor from stalling and still reach the desired speed without the user needing to change the acceleration or

deceleration time settings. The Stall Prevention function can be set separately for acceleration, operating at constant speeds,

and deceleration.

n L3-01: Stall Prevention Selection during Acceleration

Stall Prevention during acceleration is used when the motor loses speed during acceleration due to a relatively large load. It

prevents overcurrent and motor overload (oL1) from occurring.

This parameter sets the Stall Prevention method for acceleration.

No.

Name

Setting Range

Default

L3-01

Stall Prevention Selection during Acceleration

0 to 2

1

Setting 0: Disabled

No Stall Prevention is provided. If the acceleration time setting is too short, the drive may not be able to accelerate within the

set time and the motor may stall.

Setting 1: Enabled

Enables Stall Prevention during acceleration.

• When the output current exceeds 85% of the level set in parameter L3-02, the acceleration rate is reduced. The acceleration

is stopped when the current exceeds L3-02. Acceleration continues when the current falls below L3-02.

The Stall Prevention level is automatically reduced in the field weakening area. Refer to L3-03: Stall Prevention Limit

During Acceleration on page 198.

5

197

5.8 L: Protection Functions

Output current

Stall Prevention Level

During Acceleration

L3-02

L3-02

-15%

Time

Output frequency

Controls the output frequency

to prevent the motor from stalling

Time

Figure 5.72 Stall Prevention During Acceleration for Induction Motors

Setting 2: Intelligent Stall Prevention

When L3-01 = 2, the drive will disregard the selected acceleration time and try to accelerate in the minimum time. The

acceleration rate is adjusted so that the current does not exceed the value set in parameter L3-02.

n L3-02: Stall Prevention Level During Acceleration

Sets the output current level at which the Stall Prevention during acceleration is activated.

No.

Name

Setting Range

Default

<1>

L3-02

Stall Prevention Level during Acceleration

0 to 150% ^<1>

<1> Upper limit and default value are dependent on parameter L8-38, Frequency Reduction Selection

• If stalling occurs with L3-02 set to its default value when using a motor that is relatively small compared to the drive, try

lowering L3-02.

• When operating the motor in the constant power range, also set parameter L3-03.

n L3-03: Stall Prevention Limit During Acceleration

The Stall Prevention level is automatically reduced when the motor is operated in the constant power range. L3-03 sets the

lower limit for this reduction as a percentage of the drive rated current.

No.

Name

Setting Range

Default

L3-03

Stall Prevention Limit during Acceleration

0 to 100%

50%

Stall Prevention level during Acceleration

L3-02

L3-03

Output frequency

E1-06

Base frequency

Figure 5.73 Stall Prevention Level and Limit During Acceleration

198

5.8 L: Protection Functions

n L3-04: Stall Prevention Selection during Deceleration

Stall Prevention during deceleration can control the deceleration based on the DC bus voltage and prevent an overvoltage fault

caused by high inertia or rapid deceleration.

Selects the Stall Prevention method during deceleration.

No.

Name

Setting Range

Default

L3-04

Stall Prevention Selection During Deceleration Selection

0 to 4; 7

0

Setting 0: Disabled

When this setting is used, the drive decelerates according to the set deceleration time. With high inertia loads or rapid

deceleration, an overvoltage (ov) fault may occur. In this case use braking options or switch to another L3-04 selection.

Note:

Use this setting or set L3-04 to 3 whenever a Dynamic Braking Resistor or another braking option is used.

Setting 1: General Purpose Stall Prevention

With this setting the drive tries to decelerate in the set deceleration time. When the DC bus voltage exceeds the Stall Prevention

level, the drive pauses deceleration. Deceleration continues as soon as the DC bus voltage drops below that level. Stall

Prevention may be triggered repeatedly to avoid an overvoltage fault. The DC bus voltage level for Stall Prevention depends

on the input voltage setting E1-01.

Drive Input Voltage

Stall Prevention Level during Deceleration

200 V Class

Vdc = 380 V

E1-01 ≥ 400 V

Vdc = 760 V

400 V Class

E1-01 < 400 V

Vdc = 660 V

Note:

1. This setting should not be used in combination with a Dynamic Braking Resistor or other braking options. If Stall Prevention during

deceleration is enabled, it will be triggered before the braking resistor option can operate.

2. This method may lengthen the total deceleration time compared to the set value. If this is not appropriate for the application consider

using a braking option.

Figure 5.74 illustrates the function of Stall Prevention during deceleration.

Output Frequency

Deceleration characteristics

when Stall Prevention was

triggered during deceleration

Time

specified deceleration time

Figure 5.74 Stall Prevention During Deceleration

Setting 2: Intelligent Stall Prevention

With this setting the drive adjusts the deceleration rate so that the DC bus voltage is kept at the level set in parameter L3-17.

This way the shortest possible deceleration time is achieved while the motor is protected from stalling. The deceleration time

that has been selected is disregarded, but the achievable deceleration time cannot be smaller than 1/10 of the set deceleration

time.

5

This function uses the following parameters for adjusting the deceleration rate:

• DC bus voltage gain L3-20

• Deceleration rate calculations gain L3-21

• Inertia calculations for motor acceleration time L3-24

• Load inertia ratio L3-25

Refer to these parameter descriptions for details.

Note:

As the deceleration time is not constant, Intelligent Stall Prevention should not be used in applications where stopping accuracy is a concern.

Use braking options instead.

Setting 3: Stall Prevention with Braking Option

Enables the Stall Prevention function while using a braking resistor. Use this setting if overvoltage occurs with L3-04 disabled

when using a braking resistor. This makes it possible to reduce the deceleration time.

199

5.8 L: Protection Functions

Setting 4: Overexcitation Deceleration

Enables overexcitation deceleration. Overexcitation Deceleration (increasing the motor flux) shortens the deceleration time

compared to deceleration with no Stall Prevention (L3-04 = 0). Repetitive or long overexcitation deceleration can result in

motor overheat. In such situations, either shorten the deceleration time setting or use a braking resistor option.

Use parameters n3-13 and n3-23 for fine-tuning this function.

Note:

Because the allowable flux level for overexcitation varies based on the flux saturation characteristics of the motor, set the proper

overexcitation level by adjusting the excitation gain in parameter n3-13. Motor characteristics and inertia of the machine influence the

deceleration time during overexcitation deceleration.

Setting 7: Overexcitation Deceleration 3

Provides faster deceleration than normal Overexcitation Deceleration (L3-04 = 4) by increasing the amount of overexcitation

current applied to the motor.

Note:

When operation permits, use normal Overexcitation Deceleration (L3-04 = 4).

n L3-05: Stall Prevention Selection During Run

Stall Prevention During Run can prevent a motor from stalling by automatically reducing the speed when a transient overload

occurs while the motor is running at constant speed.

This parameter selects the Stall Prevention During Run method.

No.

Name

Setting Range

Default

L3-05

Stall Prevention Selection During Run

0 to 2

1

Note:

When output frequency is 6 Hz or less, Stall Prevention During Run is disabled regardless of the setting in L3-05/06.

Setting 0: Disabled

Drive runs at the set frequency reference. A heavy load may cause the motor to stall and trip the drive with an oC or oL fault.

Setting 1: Decelerate Using C1-02

If the current exceeds the Stall Prevention level set in parameter L3-06, the drive decelerates at Decel Time 1 (C1-02). Once

the current level drops below the value of L3-06 minus 2% for 100 ms it accelerates back to the frequency reference at the

active acceleration time.

Setting 2: Decelerate Using C1-04

Same as setting 1 except the drive decelerates at decel time 2 (C1-04).

n L3-06: Stall Prevention Level During Run

Sets the current level for Stall Prevention During Run. Depending on the setting of parameter L3-23 the level is automatically

reduced in the constant power range (speed beyond base speed).

No.

Name

Setting Range

Default

<1>

L3-06

Stall Prevention Level During Run

30 to 150 ^<1>

<1> Upper limit and default value are dependent on parameter L8-38, Frequency Reduction Selection

n L3-11: Overvoltage Suppression Function Selection

Enables or disables the overvoltage suppression function.

No.

Name

Setting Range

Default

L3-11

ov Suppression Function Selection

0 or 1

0

Setting 0: Disabled

The output frequency is not adjusted. A regenerative load may trip the drive with an overvoltage fault. Use this setting if

braking options are installed.

Setting 1: Enabled

When the DC bus voltage rises due to regenerative load, an overvoltage fault is prevented by increasing the output frequency.

n L3-17: Target DC Bus Voltage for Overvoltage Suppression and Stall Prevention

Sets the target DC bus voltage target level used by the overvoltage suppression function (L3-11 = 1) and Intelligent Stall

Prevention during deceleration (L3-04 = 2).

200

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