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

3.6 Control I/O Connections

A - Load Impedance

Figure 3.28 Wiring to Use Pulse Train Output in Sourcing Mode

• Use in sinking mode

The external power supply changes the voltage level of the pulse train output signal. Keep the voltage from an

external source between 10.8 Vdc to 16.5 Vdc. Adjust the load impedance to keep the current at 16 mA or

lower.

External Power Supply (V)

Load Impedance (kΩ)

Sinking current (mA)

10.8 Vdc to 16.5 Vdc

1.0 kΩ or more

16 mA maximum

A - External power supply

C - Sinking current

B - Load Impedance

Figure 3.29

Wiring to Use Pulse Train Output in Sinking Mode

◆ Set the Input Signal for the

MFAI Terminal AI2

Use terminal AI2 to input a voltage or a

current signal.

Figure 3.30 Location of DIP Switch S1

Table 3.17 MFAI Terminal AI2 Signal Settings

DIP Switch S1

Parameter

Input Signal

Settings

Signal Level

H3-09 = 2: 4 mA to 20 mA/0% to 100% (input impedance: 250 Ω)

Current input

(Default)

H3-09 = 3: 0 mA to 20 mA/0% to 100% (input impedance: 250 Ω)

H3-09 = 0: 0 V to 10 V/0% to

100% (with zero limit)

(input impedance:

20 kΩ)

Voltage input

H3-09 = 1: 0 V to 10 V/0% to 100% (without zero limit) (input

impedance: 20 kΩ)

Note:

Use tweezers or a jig with a tip width of approximately 0.8 mm (0.03 in) to set DIP switches.

3.6 Control I/O Connections

◆ Set the Output Signal for the MFAO Terminal AO

Set the signal type for terminal AO

to voltage or

current output. Use jumper S5 and H4-07 [AO Signal Level

Select] to set the signal type.

Figure 3.31 Location of Jumper Switch S5

Table 3.18 MFAO Terminal AO Signal

Settings

Parameter

Types of Output Signals

Jumper S5

Signal Level

Voltage output

H4-07

= 0: 0 V to 10 V

(Default)

Current output

H4-07 = 2: 4 mA to 20 mA

◆ Switch ON Termination Resistor for Modbus Communications

When the drive is the last slave in a Modbus communications, set DIP switch S2 to the

ON position. This drive

has a built-in termination resistor for the

RS-485 interface.

Figure 3.32 Location of DIP Switch S2

Table 3.19 Modbus Communications Termination Resistor Setting

DIP Switch S2

Description

The

built-in termination resistor

is ON.

OFF (Default)

The

built-in termination resistor

is OFF.

3.8 External Interlock

3.8

External Interlock

For applications that will have unwanted effects on the system if the drive stops, make an interlock between

MFDO terminals set to H2-xx = 3 [MFDO Function Select = Fault] and H2-xx = 1 [Drive Ready].

◆ Drive Ready

When the drive is operating or is prepared to accept a Run command, the MFDO terminal to which Drive Ready

[H2-xx = 1] is set will enter the ON status.

In these conditions, Drive Ready is OFF and the drive ignores Run commands:

• The drive is de-energized

• During a fault

• There is problem with the control power supply

• There is a parameter setting error that will not let the drive run, although a Run command is entered

• An overvoltage or undervoltage fault occurs when the Run command is entered

• The drive is in Programming Mode.

◆ Interlock Circuit Example

This is an example of how two drives that run one application use the Drive Ready and Fault output signals to

interlock with the controller.

Terminal

Output Signal

Parameter Settings for Output Signal

NO, NC, CM

Fault

H2-01 = 3

DO1-O1C

Drive Ready

H2-02 = 1

Figure 3.35 Interlock Circuit Example

3.9 Braking Resistor Installation

3.9

Braking Resistor Installation

A braking resistor or braking resistor unit (dynamic braking option) helps stop the motor quickly and smoothly

when there is high load inertia.

If you try to decelerate a motor in less time than usual for a coast to stop, the motor will rotate faster than the

synchronous speed that aligns with the set frequency. This will cause the motor to become an induction generator.

The inertia energy of the motor and regenerate to the drive and charge the drive DC bus capacitor and increase the

voltage. If the voltage is more than the overvoltage level, an ov [Overvoltage] will occur. To prevent these

overvoltage faults, a dynamic braking option is necessary.

WARNING!

Set L3-04 = 0 [StallP@Decel Enable = Disabled] when you operate the drive with:

• a regenerative converter

• regenerative unit

• braking resistor

• braking resistor unit.

If you set the parameter incorrectly, the drive can decelerate for too long and cause serious injury or death.

NOTICE: Before you connect a dynamic braking option to the drive, make sure that qualified personnel read and obey the

Braking Unit and Braking Resistor Unit Installation Manual (TOBPC72060001). If you do not read and obey the manual or if

personnel are not qualified it can cause damage to the drive and braking circuit.

Note:

• Select the correct braking circuit size to dissipate the power that is necessary to decelerate the load in the correct time. Before you run

the drive, make sure that the braking circuit can dissipate the energy for the set deceleration time.

• To install a dynamic braking option, set L8-01 = 0 [3%ERF DBR Protection = Disabled].

WARNING! Fire Hazard. Do not connect a braking resistor to terminals +1 or -. Use terminals B1 and B2 for the braking resistor

connections. If you connect a braking resistor to the incorrect terminals, it can cause damage to the drive and braking circuit and

serious injury or death.

NOTICE: Connect braking resistors to the drive as shown in the connection diagram examples. If you wire the braking circuits

incorrectly, it can cause damage to the drive or equipment.

To connect a Yaskawa ERF series braking resistor to the drive, set L8-01 = 1 [Enabled].

To use a non-ERF-type braking resistor, connect a thermal overload relay between the drive and the braking

resistor and set a circuit to turn OFF the drive power at the trip contacts of the thermal overload relay.

◆ Install a Braking Resistor: ERF-Type

Connect a braking resistor to drive models 2001 to 2021, B001 to B018, and 4001 to 4012. When you use a

braking resistor, set L8-01 = 1 [3%ERF DBR Protection = Enabled] and set one of the MFDO parameters H2-01

to H2-03 = 4C [MFDO Function Select = BrkRes Fault]. Use a sequence to turn OFF the power with a MFDO.

Figure 3.36 Install an ERF-Type Braking Resistor

◆ Install a Braking Resistor Unit: LKEB-Type

Connect the braking resistor unit as shown. To install a braking resistor unit, set L8-01 = 0 [3%ERF DBR

Protection = Disabled].

This product has a built-in braking transistor.

To prevent overheating the braking resistor unit, set a sequence to de-energize the drive at the trip contacts of the

thermal overload relay.

3.10 Drive Wiring Protection

3.10

Drive Wiring Protection

◆ Installing a Earth Leakage Circuit Breaker (RCM/RCD)

When the drive output does switches at high speeds, it causes high frequency leakage current. To prevent

electrical shock and fires caused by ground fault protection that is not sufficient, install an RCM/RCD. Use a high

frequency RCM/RCD at the power input side of the drive and make sure that each drive has a minimum

cumulative sensitivity amperage of 30 mA. The specialized breaker detects only the leakage current from

frequency bands that are dangerous to humans.

If a device does not have protection against high frequencies, high frequency leakage currents can cause the

device to malfunction. If you have a malfunction on a device that is not protected, decrease the carrier frequency

of the drive, switch to a better breaker, or use an RCM/RCD with a minimum cumulative sensitivity amperage of

200 mA for each drive.

These conditions can have an effect on leakage current:

• Drive capacity

• Carrier frequency

• Wiring distance and types of motor cables

• EMI/RFI filter

To prevent damage and injury to personnel and drives, use a high-frequency RCM/RCD that is rated for AC and

DC power supplies.

Note:

The manufacturer recommends the following RCMs/RCDs, which are designed to operate with high frequencies.

• Mitsubishi Electric Corporation; NV series

• Schneider Electric; NS series

You can use a molded-case circuit breaker (MCCB) as a replacement for an RCM/RCD that is upstream in the

power supply system.

◆ Install a Molded-Case Circuit Breaker (MCCB) or Residual Current Monitor/

Device (RCM/RCD)

Install a molded-case circuit breaker (MCCB) or a ground fault circuit interrupter (RCM/RCD) for line protection

between the power supply and main circuit power supply input terminals R/L1, S/L2, and T/L3. The MCCB/

RCM/RCD give overload protection and also prevent damage to the main circuit and the devices that are wired to

the main circuit.

Use the information in this section to select the correct MCCB or RCM/RCD and to safely connect the device.

• The capacity of the MCCB or GFCI must be 1.5 to 2 times the rated output current of the drive. Use an MCCB

or RCM/RCD as an alternative to overheat protection (150% for one minute at the rated output current) to

prevent drive faults.

• When you connect more than one drive to one MCCB or RCM/RCD that is shared between multiple drives or

with other equipment, use a magnetic contactor (MC) and set a sequence that de-energizes the drive when it

outputs errors.

A - Power supply

B - Drive

Figure 3.39 Connect an MCCB

WARNING! Electrical Shock Hazard. Use an MCCB, RCM/RCD, or Magnetic Contactor (MC) to de-energize the drive before

you wire the main circuit terminal. If the main circuit terminal is energized during wiring, it will cause serious injury or death.

3.11 Dynamic Braking Option, Motor Protection

3.11

Dynamic Braking Option, Motor Protection

◆ Install an Electromagnetic Contactor (MC) at the Input Side of the Drive

You can use an MC as an alternative to a molded case circuit breaker (MCCB) when:

• The protective functions of the drive have been triggered

• An emergency stop occurred, and the sequence de-energizes the drive.

If an MC on the input side of the drive (primary side) stops the drive, regenerative braking will not operate, and

the drive will coast to stop.

NOTICE: When you connect electromagnetic switches or magnetic contactors to the output motor circuits, make sure that you

sequence them correctly. If the output motor circuit sequence is incorrect, it can cause damage to the drive.

NOTICE: The drive can fail if users frequently turn the drive ON and OFF with the MC on the power source side to Run and

Stop the drive. Incorrect operation can decrease the service life of the relay contacts and electrolytic capacitors. If you

frequently use the magnetic contactor on the power source side to Run and Stop the drive, it can cause drive failure.

Note:

• When machinery must not restart after recovery from a momentary power loss that occurred during run, install an MC at the input side

of the drive and set a sequence that does not automatically set the Run command to ON after recovery of power.

• When it is necessary to stop momentary power loss, for example to maintain a circuit that has momentary power loss, use a delayed-

release MC.

• Use an MC (magnetic contactor) to make sure that you can fully remove power to the drive when necessary. Wire the MC to open

when a fault output terminal is triggered.

■ Protect the Braking Resistor/Braking Resistor Unit

Use an MC on the input side (primary side) to prevent damage to the braking resistor/braking resistor unit.

WARNING! Fire Hazard. When you use a braking unit, use a thermal relay on the braking resistors and set a fault contact

output for the braking resistor unit to disconnect drive main power through an input contactor. Incorrect braking circuit protection

can cause the resistors to become too hot and cause serious injury or death.

◆ Install a Thermal Overload Relay on the Drive Output

A thermal overload relay disconnects the power line to the motor during a motor overload condition to prevent

damage to the motor. Install a thermal overload relay between the drive and motor in these conditions:

• When operating more than one motor from one drive.

• When operating the motor directly from the power line with a power line bypass.

When operating one motor from one drive, it is not necessary to install a thermal overload relay. The drive has

electronic motor overload protection in the drive software.

Note:

• When you install a thermal overload relay, set parameter L1-01 = 0 [Motor Cool Type for OL1 Calc = Disabled].

• Set up a sequence that will trip an external fault (coast to stop) for the contacts of the thermal overload relay.

■ General Precautions When Using Thermal Overload Relays

When you use a motor thermal overload relay on the drive output to prevent nuisance trips and overheating of the

motor at low speeds, be sure to think about these application precautions:

• Operation of a low speed motor

• When you operate more than one motor with one drive

• Length of the motor cables

• Nuisance tripping because of high drive carrier frequency

Operation of a Low Speed Motor

Usually, you use thermal overload relays on general-purpose motors (standard motors). When a drive drives a

general-purpose motor, the motor current is approximately 5% to 10% more than with a commercial power

supply. When a motor with a shaft-driven fan operates at low speeds, the cooling capacity decreases. This can

cause the motor to overheat when the load current is in the motor rated value. Enable the electronic thermal

protection in the drive when possible to prevent this problem.

The electronic thermal overload function uses the relation between the speed and heat characteristics in the

variable speed control range to simulate the cooling ability of general-purpose motors and forced-vented motors to

prevent damage to the motor.

3.11 Dynamic Braking Option, Motor Protection

When You Operate More than One Motor with One Drive

To disable the overload protection function of the electronic thermal protector of the drive, set L1-01 = 0 [Motor

Cool Type for OL1 Calc = Disabled].

Note:

If you operate more than one motor from one drive, you cannot use the electronic thermal protection of the drive.

Length of the Motor Cables

If you use long motor cables with a high carrier frequency, the increased leakage current can cause nuisance

tripping of the thermal relay. To prevent this, decrease the carrier frequency or increase the tripping level of the

thermal overload relay.

Nuisance Tripping Because of High Drive Carrier Frequency

High carrier frequency PWM drives make current waveforms that can increase the temperature in overload relays.

It may be necessary to increase the trip level setting when encountering nuisance triggering of the relay.

WARNING! Fire Hazard. Before you increase the detection level of the thermal relay, make sure that a secondary problem is

not the cause of the overload. Make sure that you know the local codes for electrical wiring, then adjust the electrothermal

settings. Incorrect thermal relay adjustment and incorrect wiring can cause serious injury or death.

3.12 Improve the Power Factor

3.12

Improve the Power Factor

AC reactors and DC reactors decrease surges in current and improve the power factor on the input side of the

drive. Connect an AC reactor or a DC reactor to the input side (primary side) in the these conditions:

• To decrease harmonic current or improve the power factor of the power supply

• When there is switching of phase advancing capacitor

• With a large capacity power supply transformer (600 kVA or more).

Note:

• You can use an AC reactor and DC reactor together.

• When you connect a thyristor converter (for example, a DC drive) to the same power supply system, you should use an AC reactor,

regardless of the conditions of the power supply.

• The main circuit terminal block for the drive, and the terminal blocks for the AC and DC reactors come in different shapes. Use

caution when you prepare the ends of the wires.

◆ Connect an AC Reactor

Note:

When you connect an AC reactor to the output side (secondary side) of the driver, set C6-02 = 1 [Carrier Frequency Selection = 2.0

kHz].

A - Power supply

C - AC reactor

B - MCCB

D - Drive

Figure 3.40 AC Reactor Connection Example

◆ Connect a DC Reactor

When you install a DC reactor, remove the jumper between terminals +1 and +2. If you will not use a DC link

choke, do not remove the jumper.

A - Power supply

C - Drive

B - MCCB

D - DC reactor

Figure 3.41 DC Reactor Connection Example

Note:

You cannot connect a DC reactor to drive models B001 to B018.

3.14 Decrease Noise

3.14

Decrease Noise

Note:

The main circuit terminal block for the drive and the terminal block for the noise filter come in different shapes. Use caution when you

prepare the ends of the wires.

◆ Connect a Noise Filter to the Input Side (Primary Side)

High-speed switching makes noise in the drive output. This noise flows from the drive to the power supply, and

can possibly have an effect on other equipment. Install a noise filter to the input side of the drive to decrease the

quantity of noise that flows to the power supply. A noise filter also prevents noise from entering the drive from the

power supply.

• Use a noise filter specially designed for drives.

• Install the noise filter as close as possible to the drive.

A - Power supply

C - Drive

B - Input side (primary side) noise filter

D - Other controller

Note:

The input side (primary side) noise filter model is LNFD-xx.

Figure 3.42 Example of Connecting the Noise Filter on the Input Side (Primary Side)

◆ Connect a Noise Filter to the Output Side (Secondary Side)

A noise filter on the output side of the drive decreases inductive noise and radio frequency interference.

NOTICE: Do not connect phase-advancing capacitors, LC/RC noise filters, or leakage breakers (RCM/RCD) to the motor

circuit. If you connect these devices to the output circuits, it can cause damage to the drive and connected equipment.

A - Power supply

C - Noise filter on output side (secondary side)

B - Drive

D - Motor

Figure 3.43 Example of Connecting the Noise Filter on the Output Side (Secondary Side)

Note:

Glossary

• Radio frequency interference:

Electromagnetic waves radiated from the drive and cables make noise through the full radio bandwidth that can have an effect on

nearby devices.

• Inductive noise:

The noise from electromagnetic induction can have an effect on the signal line and can cause the controller to malfunction.

■ Prevent Inductive Noise

In addition to installing a noise filter, you can also run all wiring through a grounded metal conduit to decrease

inductive noise occurring at the output side. Put the cables a minimum of 30 cm (11.8 in) away from the signal

line to prevent induced noise. Ground the cables to metal conduits.

3.15 Protect the Drive during Failures

3.15

Protect the Drive during Failures

◆ Factory-Recommended Branch Circuit Protection for UL Listing

Use branch circuit protection to protect against short circuits and to maintain compliance with UL61800-5-1. The

manufacturer recommends connecting semiconductor protection fuses on the input side for branch circuit

protection. Refer to Three-Phase 400 V Class on page 96, Single-Phase 200 V Class on page 95, and Three-Phase

200 V Class on page 95 for more information.

WARNING! Electrical Shock Hazard. After the drive blows a fuse or trips an RCM/RCD, do not immediately energize the drive

or operate peripheral devices. Wait for the time specified on the warning label at a minimum and make sure that all indicators

are OFF. Then check the wiring and peripheral device ratings to find the cause of the problem. If you do not know the cause of

the problem, contact the manufacturer before you energize the drive or peripheral devices. If you do not fix the problem before

you operate the drive or peripheral devices, it can cause serious injury or death.

•

200 V class

Use the fuses specified in this document to prepare the drive for use on a circuit that supplies not more than

31,000 RMS and not more than 240 Vac when there is a short circuit in the power supply.

•

400 V class

Use the fuses specified in this document to prepare the drive for use on a circuit that supplies not more than

31,000 RMS and not more than 480 Vac when there is a short circuit in the power supply.

The built-in short circuit protection of the drive does not provide branch circuit protection. The user must provide

branch circuit protection as specified by the National Electric Code (NEC), the Canadian Electric Code, Part I

(CEC), and local codes.

◆ Three-Phase 200 V Class

Table 3.20 Factory-Recommended Branch Circuit Protection: Three-Phase 200 V Class

Maximum Applicable Motor Output

Semiconductor Protection Fuse Rated Current

Time Delay Fuse

kW (HP)

Manufacturer: EATON/Bussmann

Drive Model

Class J, CC, and T Fuse

Input Rated Current

Rated Current

Model

2001

0.18

(1/6)

0.1

(1/6)

FWH-25A14F

2002

0.37

(1/4)

0.25

(1/4)

FWH-25A14F

2004

0.75

(3/4)

0.55

(1/2)

FWH-25A14F

2006

1.1

(1.5)

0.75

(1)

FWH-25A14F

2008

1.5

(2)

1.1

(1.5)

FWH-70B

2010

2.2

(3)

1.5

(2)

FWH-70B

2012

3.0

(4)

2.2

(3)

FWH-70B

2018

3.7

(5)

3.0

(4)

FWH-90B

2021

5.5

(5)

4.0

(5)

FWH-90B

2030

7.5

(10)

5.5

(7.5)

FWH-100B

100

2042

(15)

7.5

(10)

FWH-150B

150

2056

(20)

(15)

FWH-200B

200

2070

18.5

(25)

(20)

FWH-200B

200

2082

(30)

18.5

(25)

FWH-225A

225

◆ Single-Phase 200 V Class

Table 3.21 Factory-Recommended Branch Circuit Protection: Single-Phase 200 V Class

Maximum Applicable Motor Output

Semiconductor Protection Fuse Rated Current

Time Delay Fuse

kW (HP)

Manufacturer: EATON/Bussmann

Drive Model

Class J, T, and CC Fuse

Input Rated Current

Rated Current

Model

B001

0.18

(1/6)

0.1

(1/6)

FWH-25A14F

B002

0.37

(1/4)

0.25

(1/4)

FWH-25A14F

3.15 Protect the Drive during Failures

Maximum Applicable Motor Output

Semiconductor Protection Fuse Rated Current

Time Delay Fuse

kW (HP)

Manufacturer: EATON/Bussmann

Drive Model

Class J, T, and CC Fuse

Input Rated Current

Rated Current

Model

B004

0.75

(3/4)

0.55

(1/2)

FWH-60B

B006

1.1

(1.5)

1.1

(1)

FWH-80B

B010

2.2

(3)

1.5

(2)

FWH-100B

100

B012

3.0

(3)

2.2

(3)

FWH-125B

125

B018

4.0

(5)

FWH-150B

150

◆ Three-Phase 400 V Class

Table 3.22 Factory-Recommended Branch Circuit Protection: Three-Phase 400 V Class

Maximum Applicable Motor Output

Semiconductor Protection Fuse Rated Current

Time Delay Fuse

kW (HP)

Manufacturer: EATON/Bussmann

Drive Model

Class J, CC, and T Fuse

Input Rated Current

Rated Current

Model

4001

0.37

(1/2)

0.37

(1/2)

FWH-40B

4002

0.75

(1)

0.55

(3/4)

FWH-40B

4004

1.5

(2)

1.1

(2)

FWH-50B

4005

2.2

(3)

1.5

(3)

FWH-70B

4007

3.0

(4)

2.2

(3)

FWH-70B

4009

4.0

(5)

3.0

(4)

FWH-90B

4012

5.5

(7.5)

4.0

(5)

FWH-90B

4018

7.5

(10)

5.5

(10)

FWH-80B

4023

11.0

(15)

7.5

(10)

FWH-100B

100

4031

15.0

(20)

11.0

(15)

FWH-125B

125

4038

18.5

(25)

15.0

(20)

FWH-175B

175

4044

22.0

(30)

18.5

(25)

FWH-200B

200

4060

30.0

(40)

22.0

(30)

FWH-200B

200

3.16 Wiring Checklist

3.16

Wiring Checklist

Wire the drive, examine these items, then do a test run.

Table 3.23 Power Supply Voltage

Checked

No.

Item to Check

The power supply voltage must be in the input voltage specification range of the drive.

Table 3.24 Main Circuit Wiring

Checked

No.

Item to Check

• Put the power supply through a molded-case circuit breaker (MCCB) before it gets to the drive input.

• Connect an applicable MCCB.

Correctly wire the power supply to drive terminals R/L1, S/L2, T/L3, L/L1, and N/L2.

Correctly wire the drive and motor together.

The motor lines and drive output terminals U/T1, V/T2, and W/T3 must align to make the correct phase order.

Note:

If the phase order is incorrect, the drive will rotate in the opposite direction.

Use 600 V heat resistant indoor PVC wire for the power supply and motor lines.

Note:

Wire gauge recommendations assume use of 600 V class 2 heat-resistant indoor PVC wire.

Use the correct wire gauges for the main circuit.

Note:

• When the wiring distance between the drive and the motor is long, use this formula for the voltage drop in the wire:

Motor rated voltage (V) × 0.02 ≥ √3 × wire resistance (Ω/km) × wiring distance (m) × motor rated current (A) × 10^-3

• When the cable between the drive and motor is longer than 50 m (164 ft), use parameter C6-02 [Carrier Frequency

Selection] to decrease the carrier frequency.

Correctly ground the drive.

Tighten the main circuit and grounding terminal screws of the drive to a correct tightening torque.

When operating more than one motor from one drive, set up overload protection circuits.

A - Power supply

C - oL1, oL2: Thermal overload

relay

B - Drive

Note:

Set H1-03 = 25 [DI3 Function Selection = ExF NC-AlCoast].

When you use a braking resistor or a braking resistor unit, install an electromagnetic contactor (MC).

Correctly install the resistor and make sure that overload protection uses the MC to shut off the power supply.

Make sure you did not install phase advancing capacitors, input noise filters, or ELCBs, GFCIs, RCM/RCDs on the output side

of the drive.

Table 3.25 Control Circuit Wiring

Checked

No.

Item to Check

Use twisted-pair cables for all drive control circuit wiring.

Ground the shields of shielded wiring to terminal GND.

For 3-Wire sequence, set parameters for MFDI terminals and wire control circuits.

Correctly install any options.

Examine the drive for other wiring errors.

Only use a multimeter to check wiring.

Tighten the control circuit terminal screws of the drive to a correct tightening torque.

Pick up all wire clippings.

Make sure that none of the wires on the terminal block touch other terminals or connections.

Make sure that you isolate the control circuit wiring from main circuit wiring in the control panel or in a duct.

3.17 Motor Application Precautions

3.17

Motor Application Precautions

◆ Precautions for Existing Standard Motors

■ Low-Speed Range

When a drive operates a standard motor, it will lose more power compared to operating the motor with a

commercial power supply. In the low speed range, the temperature of the motor increases quickly because the

motor cannot decrease its temperature when the speed decreases. In these conditions, decrease the load torque of

the motor in the low-speed range. Figure 3.46 shows the permitted load characteristics for a Yaskawa standard

motor. When 100% continuous torque is necessary at low speeds, use a motor designed to operate with a drive.

A - 25% ED (or 15 min)

C - 60% ED (or 40 min)

B - 40% ED (or 20 min)

D - Continuous operation

Figure 3.46 Permitted Load Characteristics for a Yaskawa Standard Motors

■ Insulation Withstand Voltage

Consider motor voltage tolerance levels and motor insulation in applications with an input voltage of over 440 V

or particularly long wiring distances. Use an insulated drive motor.

NOTICE: Use an inverter-duty motor or vector-duty motor with reinforced insulation and windings applicable for use with an AC

drive. If the motor does not have the correct insulation, it can cause a short circuit or ground fault from insulation deterioration.

■ High-Speed Operation

If you operate a motor more than its rated speed, you can have problems with the motor bearing durability and

dynamic balance of the machine. Contact the motor or machine manufacturer.

■ Torque Characteristics

When you operate a motor with a drive, the torque characteristics are different than when you operate the motor

directly from line power. Make sure that you know about the load torque characteristics for your application.

■ Vibration

Vibrations could occur in the these conditions:

• Resonance with the natural frequency of machinery

Use caution if you add a variable-speed drive to applications that operate the motor from line power at a

constant speed. If resonance occurs, install shock-absorbing rubber around the base of the motor and enable the

Jump frequency control.

• The motor is not balanced

Use caution if the motor speed is more than the rated motor speed.

• Subsynchronous resonance

Subsynchronous resonance can occur with long motor shafts and in applications such as turbines, blowers, and

fans with high inertia loads.

3.17 Motor Application Precautions

■ Audible Noise

The audible noise of the motor changes when the carrier frequency setting changes. When you use a high carrier

frequency, audible noise from the motor is equivalent to the motor noise generated when you operate from line

power. If you operate at speeds that are more than the rated rotation speed, the unwanted motor noise increases.

◆ Precautions for PM Motors

•

Contact the manufacturer or your nearest sales representative to use a PM motor that is not from the drive

manufacturer.

•

You cannot operate a PM motor from a commercial power supply. If you must operate from a commercial

power supply, use an induction motor.

•

You cannot operate more than one PM motor from one drive. Use an induction motor and a variable-speed

control drive.

•

In OLV/PM, the motor can operate in the reverse direction for 1/2 turn (electrical angle) at start up.

•

The quantity of generated starting torque changes when the control method and motor type change. Verify the

starting torque, permitted load characteristics, impact load tolerance, and speed control range before you set up

the motor with the drive. Contact the manufacturer or your nearest sales representative to use a motor that does

not meet these specifications.

•

In OLV/PM control, braking torque is always 125% or less when operating between 20% and 100% speed. A

braking resistor unit will not change the value. Braking torque is 50% or less when operating at 20% speed or

less.

•

When you use a holding brake in OLV/PM control, release the brake before you start the motor. Failure to set

the correct timing can cause a decrease in speed. Do not use these configurations in applications with heavy

loads, for example conveyors or elevators.

•

To restart a coasting motor that is rotating faster than 120 Hz, first use the Short Circuit Braking function to stop

the motor. A special braking resistor unit is necessary for Short Circuit Braking. Contact the manufacturer or

your nearest sales representative for more information.

To restart a coasting motor that is rotating slower than 120 Hz, use the Speed Search function.

If the motor cable is long, use Short Circuit Braking to stop the motor.

Note:

The Short Circuit Braking function uses the drive to forcefully cause a short across the motor wires to stop the motor before it has time

to coast to a stop.

•

You can also use EZOLV to operate synchronous reluctance motors (SynRM). Contact the manufacturer or your

nearest sales representative for more information.

•

If oC [Overcurrent], STPo [Motor Step-Out Detected], or LSo [Low Speed Motor Step-Out] occur during

restart, try Speed Search again and use the Short Circuit Braking function when you start to adjust the motor.

◆ Precautions for Specialized Motors

■ Pole Change Motors

The rated current of pole change motors is different than standard motors. Check the maximum current of the

motor before you select a drive. Always stop the motor before you switch between the number of motor poles. If

you change the number of poles while the motor is rotating, the overvoltage from regeneration or the overcurrent

protection circuitry will make the motor coast to stop.

■ Submersible Motors

The rated current of a submersible motor is more than the rated current of a standard motor. Use a sufficiently

large motor cable that will not let voltage drop decrease the maximum torque level.

■ Explosion-Proof Motors

You must test the motor and the drive together for explosion-proof certification. You must also test existing

installations of explosion-proof motors. The drive is not designed for explosion-proof areas. Install the drive in a

safe location.

The encoder used with pressure-resistant explosion-proof motors is intrinsically safe. When wiring between the

drive and encoder, always connect through a specialized pulse coupler.

100

3.17 Motor Application Precautions

■ Geared Motors

The continuous speed range is different for different lubricating methods and manufacturers. For oil lubrication,

continuous operation in the low-speed range can cause burnout. Contact the manufacturer for more information

about applications where operating at more than the rated frequency is necessary.

■ Single-Phase Motors

Variable speed drives are not designed to operate with single-phase motors. The drive is for use with three-phase

motors only. If you use capacitors to start the motor, it can cause a high frequency current to flow to the capacitors

and can damage the capacitors. A split-phase start or a repulsion start can burn out the starter coils because the

internal centrifugal switch is not activated.

■ Motors with Brakes

If you use a drive to operate a motor that has a brake connected to the output side, low voltage levels can cause

the brake to possibly not release at start. Use a motor with a brake that has a dedicated source of power for the

brake. Connect the brake power supply to the power supply side of the drive. Motors with built-in brakes make

noise when operating at low speeds.

◆ Notes on the Power Transmission Mechanism

For power transmission machinery that uses oil to lubricate gearboxes, transmissions, or reduction gears, make

sure that you use precaution if you operate the machinery continuously at low speed. Oil does not lubricate the

system as well at low speeds. If you operate at frequencies higher than the rated frequency, it can cause problems

with the power transmission mechanism. These problems include audible noise, decreased service life, and

decreased durability.

101

4.1 Safety Precautions

4.1

Safety Precautions

DANGER

Electrical Shock Hazard

Do not examine, connect, or disconnect wiring on an energized drive. Before servicing,

disconnect all power to the equipment and wait for the time specified on the warning label at a

minimum. The internal capacitor stays charged after the drive is de-energized. The charge

indicator LED extinguishes when the DC bus voltage decreases below 50 Vdc. When all

indicators are OFF, measure for dangerous voltages to make sure that the drive is safe.

If you do work on the drive when it is energized, it will cause serious injury or death from electrical shock. The

drive has internal capacitors that stay charged after you de-energize the drive.

WARNING

Electrical Shock Hazard

Do not operate the drive when covers are missing. Replace covers and shields before you

operate the drive. Use the drive only as specified by the instructions.

Some figures in this section include drives without covers or safety shields to more clearly show the inside of the

drive. If covers or safety shields are missing from the drive, it can cause serous injury or death.

Do not remove covers or touch circuit boards while the drive is energized.

If you touch the internal components of an energized drive, it can cause serious injury or death.

Sudden Movement Hazard

When you use a mechanical holding brake with the drive in a lifting application, you must close

the brake if an input terminal triggers the Baseblock command to stop drive output.

If you enter the baseblock command, the motor will suddenly coast and the load will slip, which can cause

serious injury or death.

When you use the drive in a lifting application, you must also install external safety circuitry.

The drive does not have protection against accidental load drops in lifting applications. Install

electrical and/or mechanical safety circuit mechanisms that are isolated from the drive circuitry.

If you do not use external safety circuitry, the drive could drop the load and cause serious injury or death.

104

4.2 Component Names and Functions

4.2

Component Names and Functions

Figure 4.1 Keypad

Table 4.1 Keypad: Names and Functions

Symbol

Name

Function

USB Terminal

Insertion point for a USB cable. Uses a USB cable (USB standard 2.0, type A - mini-B) to connect the keypad to a PC.

Starts the drive in LOCAL Mode.

RUN Key

Starts the operation in Auto-Tuning Mode.

Note:

Before you use the keypad to operate the motor, push

on the keypad to set the drive to LOCAL Mode.

Stops drive operation.

Note:

STOP Key

Uses a stop-priority circuit. Push

to stop the motor. This will also stop the motor when a Run command is active at an

external Run command source (REMOTE Mode). To disable

priority, set o2-02 = 0 [STOP Key Selection of Function =

Disabled].

Illuminated: The keypad controls the Run command (LOCAL Mode).

LO/RE LED

OFF: The control circuit terminal or serial transmission device controls the Run command (REMOTE Mode).

Note:

• LOCAL: Operated using the keypad. Use the keypad to enter Run/Stop commands and the frequency reference command.

• REMOTE: Operated from the control circuit terminal or serial transmission. Use the frequency reference source entered in b1-01

and the Run command source selected in b1-02.

Illuminated: The drive detects a fault.

OFF: There are no drive faults or alarms.

Flashing:

ALM/ERR LED

• An alarm

• Operation Errors

• An Auto-Tuning error

Note:

The LED will illuminate to identify a fault if the drive detects a fault and an alarm at the same time.

Illuminated: The drive is in regular operation.

OFF: The drive is stopped.

Flashing:

• The drive is decelerating to stop.

• The drive received a Run command, but the frequency reference is 0 Hz.

Flashing quickly:

RUN LED

• The drive received a Run command from the MFDI terminals and is switching to REMOTE Mode while the drive is in LOCAL

Mode.

• The drive received a Run command from the MFDI terminals when the drive is not in Drive Mode.

• The drive received a Fast Stop command.

• The safety function shuts off the drive output.

• The user pushed

on the keypad while the drive is operating in REMOTE Mode.

• The drive is energized with an active Run command and b1-17 = 1 [RUN@PowerUp Selection = Disregard RUN].

105

4.2 Component Names and Functions

Symbol

Name

Function

Left Arrow Key

Moves the cursor to the left.

Up Arrow Key/

• Moves to a different screen.

Down Arrow Key

• Selects parameter numbers and increments or decrements setting values.

Right Arrow Key

• Moves the cursor to the right.

(RESET)

• Restarts the drive to clear a fault.

ENTER Key

• Enters parameter values and settings.

• Selects each mode, parameter, and set value.

ESC Key

• Goes back to the previous screen.

• Push and hold to go back to the frequency reference screen (the initial screen).

LED Display

Shows parameters, errors, and other data.

Switches drive control for the Run command and frequency reference between the keypad (LOCAL) and an external source

(REMOTE).

LO/RE Selection

Note:

Key

• The LOCAL/REMOTE Selection Key continuously stays enabled after the drive stops in Drive Mode. If the application must not

switch from REMOTE to LOCAL because it will have a negative effect on system performance, set o2-01 = 0 [LO/RE Key

Selection of Function = Disabled] to disable

• The drive will not switch between LOCAL and REMOTE when it is receiving a Run command from an external source.

REV LED

Illuminated: The drive received a Reverse run command.

PACK LED

Illuminated: The drive is In Q2pack operation.

Connects to the drive. Use an RJ-45 8-pin straight through UTP CAT5e extension cable to install the keypad in a different location

RJ-45 Connector

than the drive.

WARNING! Sudden Movement Hazard. If you change the control source when b1-07 = 2 [LO/RE Run Selection = Accept RUN],

the drive can start suddenly. Before you change the control source, remove all personnel from the area around the drive, motor,

and load. Sudden starts can cause serious injury or death.

◆ LED Flashing Statuses

Figure 4.2 About indicator flashing statuses

Figure 4.3 Relation between RUN indicator and Drive Operation

106

4.3 Set up the Drive with Manual Setup Mode

4.3

Set up the Drive with Manual Setup Mode

Drive parameters are in letter groups from A to U. Manual Setup Mode contains only the most frequently used

parameters to help you set up the drive more easily.

To access parameters not shown in the Setup Mode, use the

menu.

Figure 4.4 Parameters in Manual Setup Mode

Table 4.2 Parameters in Manual Setup Mode

User

Parameter

Name

Parameter

Name

Parameters

A2-01

d1-01

Reference 1

A2-17

—

not used

A2-02

C1-01

Accel Time 1

A2-18

—

not used

A2-03

C1-02

Decel Time 1

A2-19

U1-16

SFS Output Frequency

A2-04

U1-01

Frequency Reference

A2-20

U1-05

Motor Speed

A2-05

U1-02

Output Frequency

A2-21

b5-02

Proportional Gain (P)

A2-06

U1-03

Output Current

A2-22

b5-03

Integral Time (I)

A2-07

d1-17

Jog Reference

A2-23

b5-05

Derivative Time (D)

A2-08

b1-01

Freq. Ref. Sel. 1

A2-24

U5-04

PID Setpoint

A2-09

b1-02

Run Comm. Sel 1

A2-25

U5-01

PID Feedback

A2-10

b1-03

Stopping Method Selection

A2-26

b5-01

PID Enable

A2-11

E2-11

Motor Rated Power (kW)

A2-27

b5-18

b5-19 PID SP Selection

A2-12

E2-01

Mot Rated Current (FLA)

A2-28

b5-06

PID Output Limit

A2-13

E2-04

Motor Pole Count

A2-29

b5-70

PID MainRefMode

A2-14

E1-04

Max Output Frequency

A2-30

b5-10

PID Output Gain Setting

A2-15

—

not used

A2-31

b5-11

PID Output Reverse Selection

A2-16

—

not used

A2-32

b5-17

PID Accel/Decel Time

Note:

• When you change A1-02 [Control Method], the settings of some parameters automatically change.

108

4.4 Drive Mode and Programming Mode

4.4

Drive Mode and Programming Mode

The keypad display of this drive has two modes: Drive Mode and Programming Mode.

• Drive Mode

Use this mode to operate the drive. These operations are available:

- Monitor operation statuses (for example, output frequency, output current, and output voltage)

- Set parameters that you can set while the drive is operating (for example, d1-01 to d1-17). Refer to Parameter

Details on page 431　for more information.

• Programming Mode

Use this mode to set parameters. These operations are available:

- Examine and set the parameters that are not at default settings (Verify Mode)

- See and set all parameters (Parameter Setting Mode)

- Automatically set motor parameters (Auto-Tuning Mode)

The following tables give information about the functions you can access when you push

Note:

You can use b1-08 [RUN@PRG Mode Selection] to set the drive to accept Run commands from an external source while in

Programming Mode.

• Set b1-08 = 1 [NoRUN@Program] to reject the Run command from an external source while in Programming Mode.

• Set b1-08 = 2 [RUN@Program] to accept the Run command from an external source while in Programming Mode.

• Set b1-08 = 3 [Program@Stop only] to prevent changes from Drive Mode to Programming Mode.

◆ Drive Mode (Operation of the motor and monitoring of operation status)

Table 4.3 Overview of the Modes

LED Display

Description

Ref.

Frequency

You can set and monitor frequency references.

reference display

Note:

You can change what is shown on the keypad when you energize the drive. Use o1-02 [Monitor Selection at

Power-up] to set the items. When A1-02 = 6 [Control Method = PM AOLVector], the display unit is %.

Monitor display

The keypad shows Ux-xx [Monitor].

Output voltage

You can monitor the output voltage reference.

display

313

Use o1-01 [User Monitor Selection] to change the items shown on this display.

Output current

You can monitor the output current.

display

Output frequency

You can monitor the frequency output from the drive.

indicator

Forward/reverse

selection

: Motor rotates in forward direction

: Motor rotates in reverse direction

Note:

For applications where the motor must not rotate in reverse direction (for example, for fans and pumps), you can

use b1-04 [Reverse Operation Selection] to prevent reverse rotation.

How to set reverse operation

109

4.4 Drive Mode and Programming Mode

◆ Programming Mode (Parameter Settings)

Table 4.4 Overview of the Modes

LED Display

Description

Ref.

Auto-Tuning

The drive automatically calculates and sets the motor parameters.

124

Mode

125

126

Parameter Setting

You can see and set all parameters.

110

Mode

Verify Menu

You can examine and set the parameters that are not at default settings.

111

◆ Drive Mode

These operations are available in Drive Mode:

• Operate and stop the drive

• Show the drive status monitors (for example, frequency reference, output frequency, output current, and output

voltage)

• Show the alarm content

• Show the alarm history

Note:

To operate the drive, select Drive Mode. You can switch to other modes when the drive stops, but the drive must be in Drive Mode to

start operation.

These steps show how to set the frequency reference source to LOCAL (keypad) and change the frequency

reference from 0 Hz to 6 Hz.

Figure 4.5 Frequency Reference Setting in Drive Mode

Note:

To prevent an incorrect setting, after you enter the frequency reference, you must push the ENTER key to change the frequency

reference. Set o2-05 = 1 [LCD FreqRef Mode@Home Screen = Enabled] to change the frequency reference value without pushing the

ENTER key.

◆ Programming Mode

In Programming Mode, you can set parameters or do Auto-Tuning. This mode has 4 sub-modes for different

programming requirements:

• Verify Menu: Use this mode to examine and set the parameters that are not at default settings.

• Setup Mode: Use this mode to see and set the minimum parameters necessary for drive operation. Refer to

Verify and Set the Changed Parameters (Verify Menu) on page 111 for more information.

• Parameter Setting Mode: Use this mode to see and set all parameters.

• Auto-Tuning Mode: Use this mode to automatically set the motor parameters necessary for each control

method.

◆ Change Parameter Settings

Show the frequency reference screen in advance.

110

4.4 Drive Mode and Programming Mode

Note:

Push and hold

to go back to the frequency reference screen from any screen.

Use these steps to change C1-01 [Accel Time 1] from 1.0 s (default) to 2.0 s.

Figure 4.6 Key Operation Examples for Parameter Settings

◆ Verify and Set the Changed Parameters (Verify Menu)

Show the frequency reference screen in advance.

Note:

Push and hold

to go back to the frequency reference screen from any screen.

Use Verify mode to view all parameters that are not at default settings. This is very useful when you replace a

drive. When there are no changes to parameter settings, the display shows

. This lets you quickly access

and re-edit changed parameters.

Note:

The drive will only display A1-02 [Control Method], A1-xx, A2-01 to A2-32 [MAN1 Param1 to MAN3 Param12], and E5-01 [PM Mot

Code Selection].

Figure 4.7 Verify and Set the Changed Parameters

◆ How to Switch between LOCAL and REMOTE

LOCAL mode lets you use the keypad to input Run commands. REMOTE mode lets you use other sources than

the keypad to input Run commands.

WARNING! Sudden Movement Hazard. If you change the control source when b1-07 = 2 [LO/RE Run Selection = Accept RUN],

the drive can start suddenly. Before you change the control source, remove all personnel from the area around the drive, motor,

and load. Sudden starts can cause serious injury or death.

You can use

or MFDI functions (LOCAL/REMOTE Selection) to switch between LOCAL and

REMOTE.

Note:

illuminates while the drive is in LOCAL Mode.

2. While you are entering a Run command, you cannot switch between LOCAL and REMOTE.

111

4.5 Start-up Procedures

4.5

Start-up Procedures

This section gives the basic steps necessary to start up the drive.

Use the flowcharts in this section to find the most applicable start-up method for your application.

This section gives information about only the most basic settings.

◆ Flowchart A: Connect and Run the Motor with Minimal Setting Changes

Flowchart A shows a basic start-up sequence to connect and run a motor with a minimum of setting changes.

Settings can change when the application changes.

Use the drive default parameter settings for basic applications where high precision is not necessary.

Start

Installation and Wiring

Check before Energizing Drive

Check after Energizing Drive

Set A1-02 [Control Method Selection].

Set the basic parameters.

- Set b1-02 [Run Command Selection] and b1-01 [Frequency Reference Selection]

- Set parameter H1, H2, H3, H4, or H6 to I/O functions

- Set d1-xx when you use multi-step speed

- Set C1-xx and C2-xx for accel/decel time and S-curve characteristics

- Set C6-01 to Heavy duty or Normal duty

- Set L3-04 when you use braking resistors or braking transistors

Control Method Selection

Induction

A1-02 =

PM motor

Induction motor and

motor

PM motor

0: V/f Control

5: Open Loop Vector Control

8: EZ Open

2: Open Loop Vector Control

for PM

Loop Vector Control

6: PM Advanced Open Loop

Vector Control

sub-chart

A-1

A-2

A-3

From sub-charts A-1, A-2, A-3

Perform no-load test-run. Make sure the machine operation, direction of

motor rotation, and functioning of multi-functional input/output is correct.

Operate with an actual load. Make sure that

the machine operates as you have set.

Fine tune parameters. Adjust application settings if necessary.

Check he machine operation and use the Verify function to

check the parameter settings.

Drive is ready to run the application.

Figure 4.9 Basic Steps before Startup

113

4.6 Items to Check before Starting Up the Drive

4.6

Items to Check before Starting Up the Drive

◆ Check before You Energize the Drive

Check the following items before you energize the drive.

Table 4.5 Items to Check before You Energize the Drive

Items to Check

Description

The voltage of the input power supply must be:

Three-phase 200 V class: three-phase 200 Vac to 240 Vac 50/60 Hz, 270 Vdc to 340 Vdc

Single-phase 200 V class: single-phase 200 Vac to 240 Vac 50/60 Hz, 270 Vdc to 340 Vdc

Input Power Supply Voltage

Three-phase 400 V class: three-phase 380 Vac to 480 Vac 50/60 Hz, 513 Vdc to 679 Vdc

Correctly wire power supply input terminals R/L1, S/L2, and T/L3, or L and N.

Correctly ground the drive and motor.

Connection between Drive Output

Make sure that you connected drive output terminals U/T1, V/T2, and W/T3 in the correct sequence to align with motor terminals U,

Terminals and Motor Terminals

V, and W and tighten the screws to a correct tightening torque.

Make sure that you connected the drive control circuit terminals in the correct sequence to align with devices and switches and

Control Circuit Terminal Wiring

tighten the screws to a correct tightening torque.

Control Circuit Terminal Status

Turn OFF the inputs from all devices and switches connected to the drive control circuit terminals.

Connection between Machinery and Motor

Disengage all couplings and belts that connect the motor and machinery.

◆ Check after You Energize the Drive

Check the following items after you energize the drive. The keypad display is different depending on drive status.

Table 4.6 Display Status after You Energize the Drive

Status

Display

Description

The LED display shows the frequency reference.

During Usual Operation

When the Drive Detects a

The display is different for different faults. Refer to “213” to remove the cause of the fault.

Fault

The ALM LED will illuminate/blink.

117

4.7 Keypad Operation

4.7

Keypad Operation

◆ Digital Character Mapping Table

The LED keypad shows the digital characters as follows.

Characters

LED Display

Characters

LED Display

Characters

LED Display

Characters

LED Display

No indication

Shown across two digits.

◆ Show the Monitor

Show the frequency reference screen in advance.

Note:

Push and hold

to go back to the frequency reference screen from any screen.

Use these steps to monitor parameter settings.

Figure 4.13 How to Monitor the Parameter Setting Values

◆ Check Modified Parameters

Show the frequency reference screen in advance.

Note:

Push and hold

to go back to the frequency reference screen from any screen.

Use Verify mode to view all parameters that are not at default settings. This is very useful when you replace a

drive. This lets you quickly access and re-edit changed parameters.

Note:

The drive will only display A1-02 [Control Method], A1-xx, A2-01 to A2-32 [MAN1 Param1 to MAN3 Param12], and E5-01 [PM Mot

Code Selection].

118

4.7 Keypad Operation

Figure 4.16 How to Change the Parameter Setting

Continue to change parameters or push and hold

to go back to the frequency reference screen.

◆ Save a Backup of Parameters

Show the frequency reference screen in advance.

Note:

Push and hold

to go back to the frequency reference screen from any screen.

Use these steps to save a backup of the drive parameters to the keypad.

Making backups of the parameter settings can save time when setting parameters after replacing a drive. If you set

up more than one drive, you can copy the parameter settings from a drive that completed a test run to the other

drives.

Note:

• Make sure that you stop the motor before you back up parameters.

• The drive does not accept Run commands while it is making a backup.

• Set o3-02 = 0 [COPY Allow Selection = Disabled] to protect the parameters saved in the keypad.

Figure 4.17 How to Save Backed-up Parameters

Push and hold

to go back to the frequency reference screen.

120

Q2V Driving Quality. Technical Manual (Item code: Q2V-Axxxx-xxx, 2020) - page 3