Omron CIMR-V7AZ20P4, CIMR-V7AZ20P1, CIMR-V7AZ20P2, CIMR-V7AZ20P3, CIMR-V7AZ20P5 User Manual

VARISPEED V7

Compact Sensorless Vector Inverter

USER’S MANUAL

Manual No.
TOEPC71060605-0

2-OY

1

PREFACE

Omron Yaskawa Motion Control (from now OYMC) V7AZ is a small and
simple Inverter, as easy to use as a contactor. This instruction manual
describes installation, maintenance, inspection, troubleshooting, and specifi­cations of the V7AZ. Read this instruction manual thoroughly before opera­tion.

OMRON YASKAWA MOTION CONTROL

General Precautions

• Some drawings in this manual are shown with protective covers or shields
removed in order to show detail with more clarity. Make sure all covers and
shields are replaced before operating the product.

• This manual may be modified when necessary because of improvements to
the product, modifications, or changes in specifications.
Such modifications are indicated by revising the manual number.

• To order a copy of this manual, or if your copy has been damaged or lost,
contact your OMRON representative.

• OMRON YASKAWA is not responsible for any modification of the product
made by the user, since that will void the guarantee.

2

NOTATION FOR SAFETY PRECAUTIONS

Read this instruction manual thoroughly before installation, operation, mainte­nance, or inspection of the V7AZ. In this manual, safety precautions are classi­fied as either warnings or cautions and are indicated as shown below.

Indicates a potentially hazardous situation which, if not avoided, may result in
death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury or damage to equipment.
It may also be used to alert against unsafe practices.

Even items classified as cautions may result in serious accidents in some situa­tions. Always follow these important precautions.

: Indicates information to insure proper operation.

WARNING

CAUTION

NOTE

3

PRECAUTIONS FOR UL/cUL MARKING

• Do not connect or disconnect wiring, or perform signal checks while the
power supply is turned ON.

• The Inverter internal capacitor is still charged even after the power supply
is turned OFF. To prevent electric shock, disconnect all power before ser­vicing the Inverter, and then wait at least one minute after the power sup­ply is disconnected. Confirm that all indicators are OFF before
proceeding.

• Do not perform a withstand voltage test on any part of the Inverter. The
Inverter is an electronic device that uses semiconductors, and is thus vul­nerable to high voltage.

• Do not remove the Digital Operator or the blank cover unless the power
supply is turned OFF. Never touch the printed circuit board (PCB) while
the power supply is turned ON.

• This Inverter is not suitable for use on a circuit capable of delivering more
than 18,000 RMS symmetrical amperes, 250 V maximum (200 V Class
Inverters) or 18,000 RMS symmetrical amperes, 480 V maximum (400 V
Class Inverters).

PRECAUTIONS FOR CE MARKINGS

• Only basic insulation to meet the requirements of protection class 1 and
overvoltage category II is provided with control circuit terminals.
Additional insulation may be necessary in the end product to conform to
CE requirements.

• For 400 V Class Inverters, make sure to ground the supply neutral to con­form to CE requirements.

• For conformance to EMC directives, refer to the relevant manuals for the
requirements.
Document No. EZZ006543

• Use 75°C copper wire or the equivalent.

CAUTION

4

RECEIVING THE PRODUCT

MOUNTING

(Ref. page)

• Do not install or operate any Inverter that is
damaged or has missing parts.

Failure to observe this caution may result in injury or
equipment damage.

18

(Ref. page)

• Lift the Inverter by the heatsinks. When moving
the Inverter, never lift it by the plastic case or the
terminal cover.

Otherwise, the main unit may fall and be damaged.

23

• Mount the Inverter on nonflammable material
(i.e., metal).

Failure to observe this caution may result in a fire.

23

• When mounting Inverters in an enclosure, install
a fan or other cooling device to keep the intake
air temperature below 50 °C (122 °F) for IP20
(open chassis type), or below 40 °C (105 °F) for
NEMA 1 (TYPE 1).

Overheating may cause a fire or damage the Inverter.

23

• The V7AZ generates heat. For effective cooling,
mount it vertically.
Refer to the figure in Choosing a Location to
Mount the Inverter on page 24.

24

CAUTION

CAUTION

5

WIRING

(Ref. page)

• Only begin wiring after verifying that the power
supply is turned OFF.

Failure to observe this warning may result in an elec­tric shock or a fire.

28

• Wiring should be performed only by qualified
personnel.

Failure to observe this warning may result in an elec­tric shock or a fire.

28

• When wiring the emergency stop circuit, check
the wiring thoroughly before operation.

Failure to observe this warning may result in injury.

28

• Always ground the ground terminal accord-

ing to the local grounding code.

Failure to observe this warning may result in an elec­tric shock or a fire.

34

• For 400 V Class, make sure to ground the sup­ply neutral.

Failure to observe this warning may result in an elec­tric shock or a fire.

37

• If the power supply is turned ON while the FWD
(or REV) Run Command is being given, the
motor will start automatically.
Turn the power supply ON after verifying that
the RUN signal is OFF.

Failure to observe this warning may result in injury.

37

• When the 3-wire sequence is set, do not make
the wiring for the control circuit unless the multi­function input terminal parameter is set.

Failure to observe this warning may result in injury.

112

WARNING

6

(Ref. page)

• Verify that the Inverter rated voltage coincides
with the AC power supply voltage.

Failure to observe this caution may result in personal
injury or a fire.

28

• Do not perform a withstand voltage test on the
Inverter.

Performing withstand voltage tests may damage
semiconductor elements.

28

• To connect a Braking Resistor, Braking Resistor
Unit, or Braking Unit, follow the procedure
described in this manual.

Improper connection may cause a fire.

34

• Always tighten terminal screws of the main cir­cuit and the control circuits.

Failure to observe this caution may result in a mal­function, damage, or a fire.

28

• Never connect the AC main circuit power supply
to output terminals U/T1, V/T2, W/T3, B1, B2, -,
+1, or +2.

The Inverter will be damaged and the guarantee will
be voided.

28

• Do not connect or disconnect wires or connec­tors while power is applied to the circuits.

Failure to observe this caution may result in injury.

28

• Do not perform signal checks during operation.

The machine or the Inverter may be damaged.

28

• To store a constant with an Enter Command by
communications, be sure to take measures for
an emergency stop by using the external termi­nals.

Delayed response may cause injury or damage the
machine.

155

CAUTION

7

OPERATION

(Ref. page)

• Only turn ON the input power supply after con­firming that the Digital Operator or blank cover
(optional) are in place. Do not remove the
Digital Operator or the covers while current is
flowing.

Failure to observe this warning may result in an elec­tric shock.

38

• Never operate the Digital Operator or DIP
switches with wet hands.

Failure to observe this warning may result in an elec­tric shock.

38

• Never touch the terminals while current is flow­ing, even if the Inverter is stopped.

Failure to observe this warning may result in an elec­tric shock.

38

• When the fault retry function is selected, stand
clear of the Inverter or the load. The Inverter
may restart suddenly after stopping.

(Construct the system to ensure safety, even if the
Inverter should restart.) Failure to observe this warn­ing may result in injury.

84

• When continuous operation after power recov­ery is selected, stand clear of the Inverter or the
load. The Inverter may restart suddenly after
stopping.

(Construct the system to ensure safety, even if the
Inverter should restart.) Failure to observe this warn­ing may result in injury.

79

• The Digital Operator stop button can be dis­abled by a setting in the Inverter. Install a sepa­rate emergency stop switch.

Failure to observe this warning may result in injury.

98

WARNING

8

(Ref. page)

• If an alarm is reset with the operation signal ON,
the Inverter will restart automatically. Reset an
alarm only after verifying that the operation sig­nal is OFF.

Failure to observe this warning may result in injury.

37

• When the 3-wire sequence is set, do not make
the wiring for the control circuit unless the multi­function input terminal parameter is set.

Failure to observe this warning may result in injury.

112

• If n001=5, a Run Command can be received
even while changing a constant. If sending a
Run Command while changing a constant, such
as during a test run, be sure to observe all
safety precautions.

Failure to observe this warning may result in injury.

46, 53

(Ref. page)

• Never touch the heatsinks, which can be
extremely hot.

Failure to observe this caution may result in harmful
burns to the body.

38

• It is easy to change operation speed from low to
high. Verify the safe working range of the motor
and machine before operation.

Failure to observe this caution may result in injury
and machine damage.

38

• Install a holding brake separately if necessary.

Failure to observe this caution may result in injury.

38

WARNING

CAUTION

9

• If using an Inverter with an elevator, take safety
measures on the elevator to prevent the eleva­tor from dropping.

Failure to observe this caution may result in injury.

187

• Do not perform signal checks during operation.

The machine or the Inverter may be damaged.

38

• All the constants set in the Inverter have been
preset at the factory. Do not change the settings
unnecessarily.

The Inverter may be damaged.

38

(Ref. page)

CAUTION

10

MAINTENANCE AND INSPECTION

(Ref. page)

• Never touch high-voltage terminals on the
Inverter.

Failure to observe this warning may result in an elec­trical shock.

192

• Disconnect all power before performing mainte­nance or inspection, and then wait at least one
minute after the power supply is disconnected.
For 400 V Class Inverters, confirm that all indi­cators are OFF before proceeding.

If the indicators are not OFF, the capacitors are still
charged and can be dangerous.

192

• Do not perform a withstand voltage test on any
part of the V7AZ.

The Inverter is an electronic device that uses semi­conductors, and is thus vulnerable to high voltage.

192

• Only authorized personnel should be permitted
to perform maintenance, inspection, or parts
replacement.

(Remove all metal objects (watches, bracelets, etc.)
before starting work.)
(Use tools which are insulated against electrical
shock.)
Failure to observe these warnings may result in an
electric shock.

192

WARNING

11

OTHERS

(Ref. page)

• The control PCB employs CMOS ICs.
Do not touch the CMOS elements.

They are easily damaged by static electricity.

192

• Do not connect or disconnect wires, connectors,
or the cooling fan while power is applied to the
circuit.

Failure to observe this caution may result in injury.

192

• Never modify the product.

Failure to observe this warning may result in an electrical shock or
injury and will void the guarantee.

• Do not subject the Inverter to halogen gases, such as fluorine,
chlorine, bromine, and iodine, at any time even during trans­portation or installation.

Otherwise, the Inverter can be damaged or interior parts burnt.

CAUTION

WARNING

CAUTION

12

WARNING LABEL

A warning label is provided on the front cover of the Inverter, as shown below.
Follow the warnings when handling the Inverter.

Warning Labels



Plastic Case

Status Indicators

Warning Label Location

Nameplate

Certification Mark

FPST31042-

8

Example of 5.5 kW for 400 V

FPST31042-74

13

CONTENTS

NOTATION FOR SAFETY PRECAUTIONS - - - - - - 2

1 Receiving the Product - - - - - - - - - - - - - - - - - - - 18

 Checking the Nameplate - - - - - - - - - - - - - - - - - - - - - - - - - - 19

2 Identifying the Parts - - - - - - - - - - - - - - - - - - - - - 20

3 Mounting - - - - - - - - - - - - - - - - - - - - - - - - - - - - 23

 Choosing a Location to Mount the Inverter - - - - - - - - - - - - - - 23
 Mounting Dimensions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 24
 Mounting/Removing Components- - - - - - - - - - - - - - - - - - - - - 25

 Removing the Front Cover- - - - - - - - - - - - - - - - - - - - - - 25
 Mounting the Front Cover - - - - - - - - - - - - - - - - - - - - - - 25
 Removing the Terminal Cover - - - - - - - - - - - - - - - - - - - 25
 Mounting the Terminal Cover - - - - - - - - - - - - - - - - - - - - 26
 Removing the Digital Operator - - - - - - - - - - - - - - - - - - - 26
 Mounting the Digital Operator - - - - - - - - - - - - - - - - - - - 26
 Mounting the Bottom Cover - - - - - - - - - - - - - - - - - - - - - 27

4 Wiring - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 28

 Wire and Terminal Screw Sizes - - - - - - - - - - - - - - - - - - - - - - 30
 Wiring the Main Circuits- - - - - - - - - - - - - - - - - - - - - - - - - - - - 34
 Wiring the Control Circuits - - - - - - - - - - - - - - - - - - - - - - - - - - 36
 Wiring Inspection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37

5 Operating the Inverter - - - - - - - - - - - - - - - - - - - 38

 Test Run - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 39

 Selecting Rotation Direction- - - - - - - - - - - - - - - - - - - - - 41
 Operation Check Points- - - - - - - - - - - - - - - - - - - - - - - - 41

 Operating the Digital Operator - - - - - - - - - - - - - - - - - - - - - - - 42

 Description of Status Indicators - - - - - - - - - - - - - - - - - - 43

 Function Indicator Description - - - - - - - - - - - - - - - - - - - - - - - 45

 MNTR Multi-function Monitoring - - - - - - - - - - - - - - - - - - 46
 Input/Output Terminal Status - - - - - - - - - - - - - - - - - - - - 48
 Data Reception Error Display- - - - - - - - - - - - - - - - - - - - 48

14

 Simple Data Setting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -50

6 Programming Features - - - - - - - - - - - - - - - - - - 52

 Hardware - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -52
 Software (Constant) - - - - - - - - - - - - - - - - - - - - - - - - - - -52

 Constant Setup and Initialization - - - - - - - - - - - - - - - - - - - - - - 53

 Constant Selection/Initialization (n001) - - - - - - - - - - - - - 53

 Using V/f Control Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - 55

 Adjusting Torque According to Application - - - - - - - - - - -55

 Using Vector Control Mode - - - - - - - - - - - - - - - - - - - - - - - - - - 59

 Precautions for Voltage Vector Control Application - - - - - 59
 Motor Constant Calculation- - - - - - - - - - - - - - - - - - - - - -60
 V/f Pattern during Vector Control - - - - - - - - - - - - - - - - - - 61

 Switching LOCAL/REMOTE Mode - - - - - - - - - - - - - - - - - - - - 62

 How to Select LOCAL/REMOTE Mode - - - - - - - - - - - - - 63

 Selecting Run/Stop Commands- - - - - - - - - - - - - - - - - - - - - - - 63

 LOCAL Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -63
 REMOTE Mode- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 64
 Operating (Run/Stop Commands) by Communications - - 64

 Selecting Frequency Reference - - - - - - - - - - - - - - - - - - - - - - 64

 LOCAL Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -65
 REMOTE Mode- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 65

 Setting Operation Conditions - - - - - - - - - - - - - - - - - - - - - - - -66

 Autotuning Selection (n139) - - - - - - - - - - - - - - - - - - - - -66
 Reverse Run Prohibit (n006)- - - - - - - - - - - - - - - - - - - - -74
 Multi-step Speed Selection - - - - - - - - - - - - - - - - - - - - - - 74
 Operating at Low Speed- - - - - - - - - - - - - - - - - - - - - - - - 75
 Adjusting Speed Setting Signal - - - - - - - - - - - - - - - - - - - 76
 Adjusting Frequency Upper and Lower Limits- - - - - - - - - 77
 Using Four Acceleration/Deceleration Times - - - - - - - - - 77
 Momentary Power Loss Ridethrough Method (n081)- - - - 79
 S-curve Selection (n023) - - - - - - - - - - - - - - - - - - - - - - -80
 Torque Detection - - - - - - - - - - - - - - - - - - - - - - - - - - - - -81
 Frequency Detection Level (n095)- - - - - - - - - - - - - - - - -82
 Jump Frequencies (n083 to n086) - - - - - - - - - - - - - - - - - 84
 Continuing Operation Using Automatic Retry Attempts - - 84
 Frequency Offset Selection (n146) - - - - - - - - - - - - - - - - 85

15

 Operating a Coasting Motor without Tripping - - - - - - - - - 88
 Holding Acceleration/Deceleration Temporarily - - - - - - - 89
 External Analog Monitoring(n066) - - - - - - - - - - - - - - - - 90
 Calibrating Frequency Meter or Ammerter (n067) - - - - - 91
 Using Analog Output (AM-AC) as Pulse Train Signal - - - 91
 Carrier Frequency Selection (n080)14kHz max - - - - - - - 94
 Operator Stop Key Selection (n007) - - - - - - - - - - - - - - - 98
 Second motor selection - - - - - - - - - - - - - - - - - - - - - - - - 99

 Selecting the Stopping Method- - - - - - - - - - - - - - - - - - - - - - 106

 Stopping Method Selection (n005) - - - - - - - - - - - - - - - 106
 Applying DC Injection Braking - - - - - - - - - - - - - - - - - - 107
 Simple Positioning Control when Stopping - - - - - - - - - 107

 Building Interface Circuits with External Devices - - - - - - - - - 110

 Using Input Signals - - - - - - - - - - - - - - - - - - - - - - - - - - 110
 Using the Multi-function Analog Inputs - - - - - - - - - - - - 120
 Using Output Signals (n057, n058, n059) - - - - - - - - - - 124

 Setting Frequency by Current Reference Input - - - - - - - - - - 126
 Frequency Reference by Pulse Train Input - - - - - - - - - - - - - 128
 Two-wire Sequence 2 - - - - - - - - - - - - - - - - - - - - - - - - - - - - 129
 Preventing the Motor from Stalling (Current Limit) - - - - - - - - 131

 Stall Prevention during Operation - - - - - - - - - - - - - - - - 133

 Decreasing Motor Speed Fluctuation - - - - - - - - - - - - - - - - - 135

 Slip Compensation (n002 = 0) - - - - - - - - - - - - - - - - - - 135

 Motor Protection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 136

 Motor Overload Detection - - - - - - - - - - - - - - - - - - - - - 136
 PTC Thermistor Input for Motor Overheat Protection - - 138

 Selecting Cooling Fan Operation - - - - - - - - - - - - - - - - - - - - 141
 Using MEMOBUS (MODBUS) Communications - - - - - - - - - 141

 MEMOBUS (MODBUS) Communications - - - - - - - - - - 141
 Communications Specifications - - - - - - - - - - - - - - - - - 142
 Communications Connection Terminal - - - - - - - - - - - - 142
 Setting Constants Necessary for Communication- - - - - 143
 Message Format- - - - - - - - - - - - - - - - - - - - - - - - - - - - 144
 Storing Constants [Enter Command] - - - - - - - - - - - - - 155
 Performing Self-test - - - - - - - - - - - - - - - - - - - - - - - - - 158

 Using PID Control Mode - - - - - - - - - - - - - - - - - - - - - - - - - - 159

 PID Control Selection (n128) - - - - - - - - - - - - - - - - - - - 159

16

 Analog Position Control with Bi-directional PID Output - 163
 Bidirectional Reference Control- - - - - - - - - - - - - - - - - - 164

 Using Constant Copy Function - - - - - - - - - - - - - - - - - - - - - - 168

 Constant Copy Function - - - - - - - - - - - - - - - - - - - - - - - 168
 READ Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 170
 COPY Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 172
 VERIFY Function- - - - - - - - - - - - - - - - - - - - - - - - - - - - 174
 Inverter Capacity Display - - - - - - - - - - - - - - - - - - - - - - 176
 Software No. Display - - - - - - - - - - - - - - - - - - - - - - - - - 178
 Display List - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 179

 Customer Specific Display Scaling - - - - - - - - - - - - - - - - - - - 181
 Selecting Processing for Frequency Reference Loss (n064) - 183
 Input/Output Open-phase Detection - - - - - - - - - - - - - - - - - - 184
 Undertorque Detection - - - - - - - - - - - - - - - - - - - - - - - - - - - - 185
 Using Inverter for Elevating Machines - - - - - - - - - - - - - - - - - 187

 Brake ON/OFF Sequence- - - - - - - - - - - - - - - - - - - - - - 187
 Stall Prevention during Deceleration - - - - - - - - - - - - - - 189
 Settings for V/f Pattern and Motor Constants - - - - - - - - 189
 Momentary Power Loss Restart and Fault Restart - - - - 189
 I/O Open-phase Protection and Overtorque Detection- - 189
 Carrier Frequency - - - - - - - - - - - - - - - - - - - - - - - - - - - 189
 External Baseblock Signal - - - - - - - - - - - - - - - - - - - - - 190
 Acceleration/Deceleration Time- - - - - - - - - - - - - - - - - - 190
 Contactor on the Inverter’s Output-side - - - - - - - - - - - - 190

 Using MECHATROLINK-II Communications - - - - - - - - - - - - 191

7 Maintenance and Inspection - - - - - - - - - - - - - 192

 Periodic Inspection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 193
 Part Replacement - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 194

 Replacement of Cooling Fan- - - - - - - - - - - - - - - - - - - - 195

8 Fault Diagnosis - - - - - - - - - - - - - - - - - - - - - - - 197

 Protective and Diagnostic Functions - - - - - - - - - - - - - - - - - - 197

 Corrective Actions of Models with Blank Cover - - - - - - - 197
 Corrective Actions of Models with Digital Operator - - - - 198

 Troubleshooting- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 212

17

9 Specifications - - - - - - - - - - - - - - - - - - - - - - - - 214

 Standard Specifications (200 V Class) - - - - - - - - - - - - - - - - 214
 Standard Specifications (400 V Class) - - - - - - - - - - - - - - - - 218
 Standard Wiring - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 222
 Sequence Input Connection with NPN/PNP Transistor - - - - - 226
 Dimensions/Heat Loss - - - - - - - - - - - - - - - - - - - - - - - - - - - 228
 Recommended Peripheral Devices- - - - - - - - - - - - - - - - - - - 231
 Constants List - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 234

10 Conformance to CE Markings - - - - - - - - - - - - 247

 CE Markings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 247
 Requirements for Conformance to CE Markings - - - - - - - - - 247

 Low Voltage Directive - - - - - - - - - - - - - - - - - - - - - - - - 247
 EMC Directive - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 248

18

1 Receiving the Product

Do not install or operate any Inverter that is dam­aged or has missing parts.
Failure to observe this caution may result in injury
or equipment damage.

After unpacking the V7AZ, check the following.

• Verify that the model number matches your purchase order or packing
slip.

• Check the Inverter for physical damage that may have occurred during
shipping.

If any part of V7AZ is missing or damaged, call for service immediately.

CAUTION

1 Receiving the Product

19

 Checking the Nameplate

Example for 3-phase, 200-VAC, 0.1-kW (0.13 HP) Inverter
for European standards

Inverter Model

Input Spec.

Output Spec.

Lot No.

Serial No.

Inverter

V7AZ Series

Software Number

Specifications

Model

B
2
4

Single-phase 200 VAC

Three-phase 200 VAC
Three-phase 400 VAC

0P1

0P2

0P4

0.1 kW

0.25 kW

0.55 kW

0P7

1P5

2P2

1.1 kW

1.5 kW

2.2 kW

3P0

4P0

4.0 kW

3.0 kW

0.37 kW

0.55 kW

1.1 kW

1.5 kW

2.2 kW

4.0 kW

Applicable maximum motor output

200 V class 400 V class

No.

Protective structure

0

Open chassis
(IP20, IP00)*

1

1

Enclosed wall-mounted
(NEMA1)*

2

No.

Voltage Class

B
2
4

Single-phase 200 VAC
Three-phase 200 VAC
Three-phase 400 VAC

No.

Specifications

Z

European standards

0P1

0P2

0P4

0.1 kW

0.25 kW

0.55 kW

0P7

1P5

2P2

1.1 kW

1.5 kW

2.2 kW

3P0

4P0

4.0 kW

3.0 kW

0.37 kW

0.55 kW

1.1 kW

1.5 kW

2.2 kW

4.0 kW

Applicable maximum motor output

200 V class 400 V class

CIMR-V7AZ20P1

No.

Type

A With Digital Operator (with potentiometer)

A

5.5 kW

5P5

7P5

7.5 kW

5.5 kW

7.5 kW

5.5 kW

5P5

7P5

7.5 kW

5.5 kW

7.5 kW

20P10

Z

Note: Contact your OMRON representatives
for models without heatsinks.

*1: Inverters with outputs 0P1 to 3P7 are rated
IP20. Be sure to remove the top and bottom
covers if using open-chassis mounted Inverters
with a 5P5 or 7P5 output.
*2: A NEMA 1 rating is optional for Inverters with
outputs 0P1 to 3P7 but standard for 5P5 or 7P5.

Mass

Inverter Software Version

The inverter software version can be read out from the monitor parameter
U-10 or parameter n179. The parameter shows the last for digits of the
software number (e.g. display is“5740”for the software version VSP015740).

The manual describes the functionality of the Inverter software version
VSP015740 (0.1 to 4.0 kW) and VSP105750 (5.5 and 7.5 kW). Older software
versions do not support all described functions. Check the software version
before starting to work with this manual.

20

2 Identifying the Parts

Digital Operator
(with potentiometer)
JVOP-140
Used for setting or
changing constants.
Frequency can be set
using the potentiometer.

Digital Operator
(without potentiometer)
JVOP-147
Used for setting or
changing constants.

Blank cover
In models without a
Digital Operator, the
blank cover is mounted
in place of the Digital
Operator.

Terminal Cover

Digital Operator

Front Cover

Nameplate

Heatsink

Bottom Cover

Wiring Holes
for Main Circuit

Wiring Holes
for Control Circuit

Ground Terminal

Cooling Fan

Fan Cover

2 Identifying the Parts

21

V7AZ Inverters with the Covers Removed

Example for 3-phase (200 V Class, 1.5 kW) Inverter

Example for 3-phase (200 V Class, 0.1 kW) Inverter

Frequency-setting Potentiometer

Inverter Operation Status Indicators

Short-circuit
Bar

Ground Terminals

Main Circuit Terminal Block

Control Circuit Terminal Block

Input Polarity
Switch

Ground Terminals

Terminal Resistor Switch for
Communication Circuit

Voltage/Current Change Switch for
Analog Frequency Reference Input

Frequency-setting Potentiometer

Inverter Operation Status Indicators

Short-circuit
Bar

Main Circuit Terminal Block

Control Circuit Terminal Block

Input Polarity
Switch

Terminal Resistor Switch for
Communication Circuit

Voltage/Current Change Switch for
Analog Frequency Reference Input

22

Main Circuit Terminal Arrangement

The terminal arrangement of the main circuit terminals depends on the
Inverter model.

CIMR-V7AZ20P1 to 20P7, B0P1 to B0P4

CIMR-V7AZ21P5, 22P2, B0P7, B1P5, 40P2 to 42P2

CIMR-V7AZ24P0, B2P2, 43P0, 44P0

CIMR-V7AZB4P0

CIMR-V7AZ25P5, 27P5, 45P5, 47P5

R/L1 S/L2 T/L3 㧙 +1 +2 B1 B2 U/T1 V/T2 W/T3

3 Mounting

23

3 Mounting

 Choosing a Location to Mount the Inverter

Be sure the Inverter is protected from the following conditions.

• Extreme cold and heat. Use only within the specified ambient tem­perature range:

−10 to 50 °C (14 to 122 °F) for IP20 (open chassis type),

−10 to 40 °C (14 to 105 °F) for NEMA 1 (TYPE 1)

• Rain and moisture

• Oil sprays and splashes

• Salt spray

• Direct sunlight (Avoid using outdoors.)

• Corrosive gases (e.g., sulfurized gas) or liquids

• Dust or metallic particles in the air

• Physical shock or vibration

• Magnetic noise (Examples: Welding machines, power devices, etc.)

• High humidity

• Radioactive substances

• Combustibles, such as thinner or solvents

24

 Mounting Dimensions

To mount the V7AZ, the dimensions shown below are required.

• Lift the Inverter by the heatsinks. When moving the
Inverter, never lift it by the plastic case or the termi­nal cover.
Otherwise, the main unit may fall and be damaged.

• The V7AZ generates heat. For effective cooling,
mount it vertically.

Air

Air

aa

100 mm (3.94 in.) or more

100 mm (3.94 in.) or more

Voltage Class

(V)

Max. Applicable

Motor Capacity

(kW)

Length a

200 V Single-phase
3-phase
400 V 3-phase

3.7 kW or less

30 mm (1.18 in.) min.

50 mm (1.97 in.) min.

200 V 3-phase
400 V 3-phase

5.5 kW

7.5 kW

CAUTION

3 Mounting

25

• The same space is required horizontally and vertically and
right and left for both Open Chassis (IP00, IP20) and
Enclosed Wall-mounted (NEMA 1) Inverters.

• Always remove the top and bottom covers before install­ing a 200 or 400 V Class Inverter with an output of 5.5/7.5
kW in a panel.

 Mounting/Removing Components

Removing and Mounting the Digital Operator and Covers

 Removing the Front Cover

Use a screwdriver to loosen the screw
(section A) on the front cover. (To pre­vent loss, this screw cannot be
removed.) Then press the right and left
sides in direction 1 and lift the front
cover in direction 2.

 Mounting the Front Cover

Mount the front cover by reversing the
order of the above procedure for
removal.

 Removing the Terminal Cover

• 200 V class Inverters with 1.1 kW
and more and all 400 V class
Inverters:

After removing the front cover,
press the right and left sides of the
terminal cover in direction 1 and lift
the terminal cover in direction 2.

NOTE

1

1

2

A

26

• Inverters of 5.5 and 7.5 kW:

Use a screwdriver to loosen
the screw (section B) on the
terminal cover surface. (To
prevent loss, this screw cannot
be removed.) Then press the
right and left sides in direction
1 and lift the terminal cover in
direction 2.

 Mounting the Terminal

Cover

Mount the terminal cover by
reversing the order of the above proce­dure for removal.

 Removing the Digital Operator

After removing the front cover, (fol­low the procedure on page 25) lift the
upper and lower sides (section C) of
the right side of the Digital Operator
in direction 1.

 Mounting the Digital Operator

Mount the Digital Operator by revers­ing the order of the above procedure
for removal.

1

1

2

B

C

C

3 Mounting

27

 Removing the Bottom Cover

• 200 V class Inverters with 1.1 kW
and more and all 400 V class
Inverters:

After removing the front cover and
the terminal cover, tilt the bottom
cover in direction 1 with section A
as a supporting point.

• Inverters of 5.5 and 7.5 kW

After removing the terminal cover,
use a screwdriver to loosen the
mounting screw in direction 1.

 Mounting the Bottom Cover

Mount the bottom cover by reversing
the order of the above procedure for
removal.

A

A

1

1

28

4 Wiring

• Only begin wiring after verifying that the power sup­ply is turned OFF.
Failure to observe this warning may result in an
electric shock or a fire.

• Wiring should be performed only by qualified per­sonnel.
Failure to observe this warning may result in an
electric shock or a fire.

• When wiring the emergency stop circuit, check the
wiring thoroughly before operation.
Failure to observe this warning may result in injury.

• For the 400 V Class, make sure to ground the supply
neutral.
Failure to observe this warning may result in an
electric shock or a fire.

• Verify that the Inverter rated voltage coincides with
the AC power supply voltage.
Failure to observe this caution may result in per­sonal injury or a fire.

• Do not perform a withstand voltage test on the
Inverter.
Performing withstand voltage tests may damage
semiconductor elements.

• Always tighten terminal screws of the main circuit
and the control circuits.
Failure to observe this caution may result in a mal­function, damage, or a fire.

• Never connect the AC main circuit power supply to
output terminals U/T1, V/T2, W/T3, B1, B2, -, +1,
or +2.
The Inverter will be damaged and the guarantee will
be voided.

• Do not connect or disconnect wires or connectors
while power is applied to the circuits.
Failure to observe this caution may result in injury.

• Do not perform signal checks during operation.
The machine or the Inverter may be damaged.

• To store a constant with an Enter Command by com­munications, be sure to take measures for an emer­gency stop by using the external terminals.

WARNING

CAUTION

4 Wiring

29

Delayed response may cause injury or damage the
machine.

Wiring Instructions

1. Always connect the power supply for the main circuit
inputs to the power input terminals R/L1, S/L2, and T/L3
(R/L1, S/L2 for single-phase power) via a molded-case
circuit breaker (MCCB) or a fuse. Never connect the
power supply to terminals U/T1, V/T2, W/T3, B1, B2, −,
+1, or +2. The Inverter may be damaged.
For single-phase Inverters, always use terminals R/L1 and
S/L2. Never connect terminal T/L3. Fuses must be of UL­class RK5 fuse or an equivalent.
Refer to page 231 for recommended peripheral devices.

Inverter Power Supply Connection Terminals

2. If the wiring distance between Inverter and motor is long,
reduce the Inverter carrier frequency. For details, refer to
Carrier Frequency Selection (n080)14kHz max on page

94.

3. Control wiring must be less than 50 m (164 ft) in length
and must be separated from power wiring. Use shielded
twisted-pair cable when inputting the frequency signal
externally.

4. Only basic insulation to meet the requirements of protec­tion class 1 and overvoltage category II is provided with
control circuit terminals. Additional insulation may be
necessary in the end product to conform to CE require­ments.

5. Closed-loop connectors should be used when wiring to the
main circuit terminals.

200-V 3-phase Input

Power Supply Speci-

fication Inverters

CIMR-V72

200-V Single Input

Power Supply Speci-

fication Inverters

CIMR-V7B

400-V 3-phase Input

Power Supply Speci-

fication Inverters

CIMR-V74

Connect to R/L1,
S/L2, and T/L3.

Connect to R/L1 and
S/L2.

Connect to R/L1,
S/L2, and T/L3.

NOTE