Omron VARISPEED V7 DATASHEET

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Page 1

Manual No. TOEPC71060605-0

2-OY

VARISPEED V7

Compact Sensorless Vector Inverter

USER’S MANUAL

Page 2

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.

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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.

WARNING

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

CAUTION

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.

NOTE

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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).

CAUTION

• Use 75°C copper wire or the equivalent.

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

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RECEIVING THE PRODUCT

CAUTION

• 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.

MOUNTING

CAUTION

• 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.

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

Failure to observe this caution may result in a fire.

• 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.

• 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.

(Ref. page)

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WIRING

WARNING

• 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.

• 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.

• 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.

• 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.

• 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.

(Ref. page)

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CAUTION

• 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.

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

Improper connection may cause a fire.

• 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.

Delayed response may cause injury or damage the machine.

(Ref. page)

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OPERATION

WARNING

• 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.

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

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

• 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.

• 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.

• 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.

• 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.

(Ref. page)

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WARNING

• 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.

• 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.

• 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.

CAUTION

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

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

• 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.

• Install a holding brake separately if necessary.

Failure to observe this caution may result in injury.

(Ref. page)

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46, 53

(Ref. page)

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CAUTION

• 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.

• Do not perform signal checks during operation.

The machine or the Inverter may be damaged.

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

The Inverter may be damaged.

(Ref. page)

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MAINTENANCE AND INSPECTION

WARNING

• Never touch high-voltage terminals on the Inverter.

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

• 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.

• 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.

• 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.

(Ref. page)

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CAUTION

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

They are easily damaged by static electricity.

• 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.

OTHERS

WARNING

• Never modify the product.

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

CAUTION

• 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.

(Ref. page)

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WARNING LABEL

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

Plastic Case

Status Indicators

Warning Label Location

Warning Labels



Certification Mark

FPST31042-

FPST31042-74

Nameplate

Example of 5.5 kW for 400 V

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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

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 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

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 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

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 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

Page 18

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

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1 Receiving the Product

CAUTION

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.

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.

Page 20

1 Receiving the Product

 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.

Model

Inverter

V7AZ Series

No.

Type

A With Digital Operator (with potentiometer)

Note: Contact your OMRON representatives for models without heatsinks.

Specifications

Single-phase 200 VAC

Three-phase 200 VAC

Three-phase 400 VAC

CIMR-V7AZ20P1

Applicable maximum motor output

200 V class 400 V class

0P1

0.1 kW

0P2

0.25 kW

0P4

0.55 kW

0P7

1.1 kW

1P5

1.5 kW

2P2

2.2 kW

3P0

4P0

4.0 kW

5.5 kW

5P5

7P5

7.5 kW

20P10

Applicable maximum motor output

200 V class 400 V class

0P1

0.1 kW

0P2

0.25 kW

0P4

0.55 kW

0P7

1.1 kW

1P5

1.5 kW

2P2

2.2 kW

3P0

4P0

4.0 kW

5.5 kW

5P5

7P5

7.5 kW

No.

Voltage Class

Single-phase 200 VAC

Three-phase 200 VAC

Three-phase 400 VAC

Specifications

No.

European standards

Protective structure

No.

Open chassis

0.37 kW

0.55 kW

1.1 kW

1.5 kW

2.2 kW

3.0 kW

4.0 kW

5.5 kW

7.5 kW

(IP20, IP00)*

Enclosed wall-mounted

(NEMA1)*

*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.

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.

Mass Software Number

0.37 kW

0.55 kW

1.1 kW

1.5 kW

2.2 kW

3.0 kW

4.0 kW

5.5 kW

7.5 kW

Page 21

2 Identifying the Parts

Wiring Holes for Control Circuit

Wiring Holes for Main Circuit

Ground Terminal

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

Terminal Cover

Cooling Fan

Fan Cover

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

Digital Operator

Front Cover

Nameplate

Heatsink

Bottom Cover

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

Page 22

V7AZ Inverters with the Covers Removed

Input Polarity Switch

Short-circuit Bar

Ground Terminals

Control Circuit Terminal Block

Main Circuit Terminal Block

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

Frequency-setting Potentiometer

Input Polarity Switch

Control Circuit Terminal Block

2 Identifying the Parts

Frequency-setting Potentiometer

Inverter Operation Status Indicators

Terminal Resistor Switch for Communication Circuit

Voltage/Current Change Switch for Analog Frequency Reference Input

Inverter Operation Status Indicators

Terminal Resistor Switch for Communication Circuit

Voltage/Current Change Switch for Analog Frequency Reference Input

Short-circuit Bar

Main Circuit Terminal Block

Ground Terminals

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

Page 23

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

Page 24

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

3 Mounting

Page 25

 Mounting Dimensions

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

100 mm (3.94 in.) or more

Voltage Class

(V)

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

200 V 3-phase 400 V 3-phase

CAUTION

Max. Applicable

Motor Capacity

(kW)

3.7 kW or less

5.5 kW

7.5 kW

Length a

30 mm (1.18 in.) min.

50 mm (1.97 in.) min.

• 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

Page 26

• The same space is required horizontally and vertically and

NOTE

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.

3 Mounting

Page 27

• 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.

Page 28

 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.

3 Mounting

• 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.

Page 29

4 Wiring

WARNING

CAUTION

• 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.

Page 30

Delayed response may cause injury or damage the machine.

Wiring Instructions

NOTE

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

200-V 3-phase Input

Power Supply Speci-

fication Inverters

CIMR-V72

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

200-V Single Input

Power Supply Speci-

fication Inverters

CIMR-V7B

Connect to R/L1 and S/L2.

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.

4 Wiring

400-V 3-phase Input Power Supply Speci-

fication Inverters

CIMR-V74

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

Page 31

6. Voltage drop should be considered when determining the wire size. Voltage drop can be calculated using the following equation: Phase-to-phase voltage drop (V)

= × Wire resistance (Ω/km) × Wiring distance (m) ×

Current

-3

(A) × 10 Select a wire size so that voltage drop will be less than 2% of the normal rated voltage.

7. If the Inverter is connected to a power transformer exceeding 600 kVA, excessive peak current may flow into the input power supply circuit, and break the converter section. In this case, attach an AC reactor (optional) to the Inverter input side, or a DC reactor (optional) to the DC reactor connection terminal.

 Wire and Terminal Screw Sizes

1. Control Circuits

Model Terminal

Same

MA, MB, MC M3 0.5 to 0.6

for all

models

S1 to S7, P1,

P2, SC, PC,

R+, R-, S+, S-,

FS, FR, FC, AM, AC, RP

Symbols

Screws Tightening

Tor q ue

N•m (lb•in)

(4.44 to 5.33)

M2 0.22 to 0.25

(1.94 to 2.21)

Applicable Size Recom-

Twis ted w ires:

0.5 to 1.25, Single: 0.5 to 1.25

Twis ted w ires:

0.5 to 0.75, Single: 0.5 to 1.25

Wires

mended Size

20 to 16,

20 to 16

20 to 18,

20 to 16

AWG

0.75 18 Shielded or

0.75 18

Type

AWG

equivalent

Page 32

2. Main Circuits

200 V Class 3-phase Input Inverters

Model Terminal Symbols Screws Tightening

CIMR-

R/L1, S/L2, T/L3, -

V7ΑΖ

, +1, +2, B1, B2,

20P1

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3, -

V7ΑΖ

, +1, +2, B1, B2,

20P2

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3, -

V7ΑΖ

, +1, +2, B1, B2,

20P4

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3, -

V7ΑΖ

, +1, +2, B1, B2,

20P7

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3, -

V7ΑΖ

, +1, +2, B1, B2,

21P5

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3, -

V7ΑΖ

, +1, +2, B1, B2,

22P2

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3, -

V7ΑΖ

, +1, +2, B1, B2,

24P0

U/T1, V/T2, W/T3

Tor qu e

N•m (lb•in)

M3.5 0.8 to 1.0

(7.1 to 8.88)

M3.5 0.8 to 1.0

(7.1 to 8.88)

M3.5 0.8 to 1.0

(7.1 to 8.88)

M3.5 0.8 to 1.0

(7.1 to 8.88)

M4 1.2 to 1.5

(10.65 to 13.31)

M4 1.2 to 1.5

(10.65 to 13.31)

M4 1.2 to 1.5

(10.65 to 13.31)

4 Wiring

AWG

Wires

Size

3.5 12

AWG

Type

vinyl-

sheathed

or equiva-

lent

Applicable Size Recommended

0.75 to 2 18 to 14 2 14 600-V

0.75 to 2 18 to 14 2 14

2 to 5.5 14 to 10 2 14

2 to 5.5 14 to 10 3.5 12

2 to 5.5 14 to 10 5.5 10

CIMR-

V7ΑΖ 25P5

CIMR-

V7ΑΖ 27P5

R/L1, S/L2, T/L3, -

, +1, +2, B1, B2,

U/T1, V/T2, W/T3

R/L1, S/L2, T/L3, -

, +1, +2, B1, B2,

U/T1, V/T2, W/T3

M5 2.5

(22.13)

M5 2.5

(22.13)

5.5 to 8 10 to 8 8 8

Note: The wire size is given for copper wire at 75°C (160°F).

Page 33

200 V Class Single-phase Input Inverters

Model Terminal Symbols Screws Tightening

CIMR-

R/L1, S/L2, T/L3,

V7ΑΖ

-, +1, +2, B1, B2,

B0P1

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3,

V7ΑΖ

-, +1, +2, B1, B2,

B0P2

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3,

V7ΑΖ

-, +1, +2, B1, B2,

B0P4

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, T/L3,

V7ΑΖ

-, +1, +2, B1, B2,

B0P7

U/T1, V/T2, W/T3

CIMR-

R/L1, S/L2, -, +1,

V7ΑΖ

+2, B1, B2, U/T1,

B1P5

V/T2, W/T3

CIMR-

R/L1, S/L2, -, +1,

V7ΑΖ

+2, B1, B2, U/T1,

B2P2

V/T2, W/T3

CIMR-

R/L1, S/L2, -, +1,

V7ΑΖ

+2, B1, B2, U/T1,

B4P0

V/T2, W/T3

Tor q ue

N•m (lb•in)

M3.5 0.8 to 1.0

(7.1 to 8.88)

M3.5 0.8 to 1.0

(7.1 to 8.88)

M3.5 0.8 to 1.0

(7.1 to 8.88)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.2 to 1.5

(10.65 to

13.31)

M5 3.0 (26.62) 3.5 to 8 12 to 8 8 8

M4 1.2 to 1.5

(10.65 to

13.31)

Applicable Size Rec ommended

AWG

0.75 to 2 18 to 14 2 14 600-V vinyl-

0.75 to 2 18 to 14 2 14

2 to 5.5 14 to 10 3.5 12

2 to 5.5 14 to 10 5.5 10

2 to 8 14 to 8

Note: 1. The wire size is given for copper wire at 75°C (160°F).

2. Do not use terminal T/L3 on Inverters with single-phase input.

Wires

AWG

Type

sheathed or

equivalent

Size

Page 34

Model Terminal Sym-

CIMRV7ΑΖ

40P2

CIMRV7ΑΖ

40P4

CIMRV7ΑΖ

40P7

CIMRV7ΑΖ

41P5

CIMRV7ΑΖ

42P2

CIMRV7ΑΖ

43P0

CIMRV7ΑΖ

44P0

CIMRV7ΑΖ

45P5

bols

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2,

U/T1, V/T2, W/T3

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2,

U/T1, V/T2, W/T3

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2,

U/T1, V/T2, W/T3

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2,

U/T1, V/T2, W/T3

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2,

U/T1, V/T2, W/T3

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2,

U/T1, V/T2, W/T3

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2,

U/T1, V/T2, W/T3

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2,

U/T1, V/T2, W/T3

400 V Class 3-phase Input Inverters

Screws Tightening

Tor qu e

N•m (lb•in)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.2 to 1.5

(10.65 to

13.31)

M4 1.4

(12.39)

Applicable Size Recommended

AWG

2 to 5.5 14 to 10 2 14 600-V vinyl-

2 to 5.5 14 to 10 2 14

3.5 to

12 to 10 5.5 10

5.5

Wires

Size

3.5 12

AWG

4 Wiring

Type

sheathed or

equivalent

CIMRV7ΑΖ

47P5

R/L1, S/L2, T/L3,

-, +1, +2, B1, B2, U/T1, V/T2, W/T3

M5 2.5

(22.13)

5.5 to 8 10 to 8 5.5 10

Note: The wire size is given for copper wire at 75°C (160°F).

Page 35

 Wiring the Main Circuits

[Example of 3-phase,

L1 L2 L3

MCCB or Leakage Breaker

• Main Circuit Input Power Supply

Always connect the power supply line to input terminals R/L1, S/L2, and T/L3. Never connect them to terminals U/T1, V/T2, W/T3, B1, B2, −, +1, or +2. The Inverter may be damaged if the wrong terminals are connected.

For single-phase Inverters, always use terminals R/L1 and S/L2. Never connect terminal T/L3.

NOTE

• Grounding (Use ground terminal .)

WARNING

Never ground the V7AZ to the same ground as welding machines, motors, or other electrical equipment. When several V7AZ Inverters are used side by side, ground each as shown in the following examples. Do not loop the ground wires.

Always ground the ground terminal according to the local grounding code. Failure to observe this warning may result in an electric shock or a fire.

400 V Class, 0.37 kW Inverters]

Grounding

Good

Poor

Page 36

4 Wiring

• Braking Resistor Connection (Optional)

WARNING

Use this same procedure when connecting a Braking Resistor Unit. Refer to page 223.

• Inverter Output

Connect the motor terminals to U/T1, V/T2, and W/T3.

• Wiring the Main Circuit Terminals

Pass the cables through the wiring hole to connect them. Always mount the cover in its original position.

To connect the braking resistor, cut the protector on terminals

B1 and B2.

To protect the braking resistor from overheating, install a ther-

mal overload relay between the braking resistor and the Inverter. This provides a sequence that turns OFF the power supply with thermal relay trip contacts. Failure to observe this warning may result in a fire.

Connect with a Phillips screwdriver.

Page 37

 Wiring the Control Circuits

Only basic insulation is provided for the control circuit terminals.

Additional insulation may be necessary in the end product.

• Control Circuit Terminals

Pass the cable through the wiring hole to connect it. Always mount the cover in its original position.

Contact Output

SW1 can be changed according to sequence input signal (S1 to S7) polarity. 0 V common: NPN side (factory setting) +24 V common: PNP side Refer to pages 226 and 227 for SW1.

Refer to pages 126 and 142 for SW2.

Screwdriver Blade WidthWiring the Control Circuit Terminals

0.4 mm max (0.016 in.)

2.5 mm max (0.098 in.)

Insert the wire into the lower part of the terminal block and connect it tightly with a screwdriver.

Page 38

4 Wiring

NOTE

5.5 mm (0.22 in.)

• Keep the screwdriver vertical to the Inverter.

• Refer to Page 30 for tightening torques.

The wire sheath strip length must be 5.5 mm (0.22 in.).

Open the front cover and verify that the strip length is 5.5 mm (0.22 in.).

5.5mm

Scale

CONTACT OUTPUT

SW1

 Wiring Inspection

After completing wiring, check the following.

• Wiring is proper.

• Wire clippings or screws are not left in the Inverter.

• Screws are securely tightened.

• Bare wires in the terminals do not contact other terminals.

WARNING

If the power supply is turned ON while the FWD (or

REV) Run Command is 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.

SW2

NOTE

1. If the FWD (or REV) Run Command is given when the Run Command from the control circuit terminal is selected (n003 = 1), the motor will start automatically after the main circuit input power supply is turned ON.

2. To set the 3-wire sequence, set terminal S3 (n052) to 0.

Page 39

5 Operating the Inverter

The Control Mode Selection (n002) is initially set to V/f control mode.

WARNING

CAUTION

• 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.

• Never operate the Digital Operator or DIP switches with wet hands. Failure to observe this warning may result in an electric shock.

• 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.

• Never touch the heatsinks, which can be extremely hot. Failure to observe this caution may result in harmful burns to the body.

• 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.

• Install a holding brake separately if necessary. Failure to observe this caution may result in injury.

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

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

Page 40

5 Operating the Inverter

 Test Run

The Inverter operates when a frequency (speed) is set.

There are four operating modes for the V7AZ:

1. Run Command from the Digital Operator (potentiometer/digital setting)

2. Run Command from the control circuit terminals

3. Run Command from MEMOBUS communications

4. Run Command from communication card (optional)

Prior to shipping, the Inverter is set up to receive the Run Command and frequency reference from the Operator. Below are instructions for running the V7AZ using the JVOP-147 Digital Operator (without potentiometer). For instructions on operation, refer to page 50.

Operation reference or frequency reference constants can be selected separately as shown below.

Name Constant

Run

Command

Selection

Frequency

Reference

Selection

n003 = 0 --- Enables run, stop, and reset from Digital Operator.

= 1 --- Enables run and stop from control c ircuit terminals. = 2 --- Enables MEMOBUS communicatio ns. = 3 --- Enables communication card (optional) .

n004 = 0 --- Enables the Digital Operator’s potentiometer setting.

= 1 --- Enables Frequency Reference 1 (constant n024). = 2 --- Enables a voltage reference (0 to 10 V) at the contr ol circuit

terminal.

= 3 --- Enables a current reference (4 to 20 mA) at the c ontrol circuit

terminal.

= 4 --- Enables a current reference (0 to 20 mA) at the c ontrol circuit

terminal. = 5 --- Enables a pulse train reference at the cont rol circuit terminal. = 6 --- Enables MEMOBUS communicatio ns. = 7 --- Enables a voltage reference (0 to 10 V) at the Digital Operator’s

circuit terminal. = 8 --- Enables a current reference (4 to 20 mA) at the Digital Operator’s

circuit terminal. = 9 --- Enables communication card (optional) .

Page 41

Operation Steps Operator

1. Turn ON the power supply. 6.00

Display

Function

Indicators

FREF

Stat us

Indicators

RUN ALARM

2. Set constant n004 to 1. 1

PRGM

RUN ALARM

3. Set the following constants. n019: 15.0 (acceleration time) n020: 5.0 (deceleration time)

4. Select forward or reverse run by press-

ing or key.

Never select REV when reverse run is prohibited.

NOTE

5. Set the reference by pressing or

key.

6. Press .

15.0

5.0

(Forward)

(Reverse)

60.00

0.00→60.00

PRGM

RUN ALARM

F/R

RUN

FREF

ALARM

RUN ALARM

FOUT

RUN ALARM

7. Press to stop.

If the potentiometer is switched rapidly, the motor also acceler-

NOTE

ates or decelerates rapidly in proportion to the potentiometer movement. Pay attention to load status and switch the potentiometer at the speed that will not adversely affect motor movement.

Status indicators : ON : Flashing (Long flashing) : Flashing : OFF

60.00→0.00

FOUT

RUN

ALARM

Page 42

5 Operating the Inverter

 Selecting Rotation Direction

It is possible to select the direction in which the motor rotates when the Forward Run Command is executed.

The motor rotates in the opposite direction when the Reverse Run Command is executed.

n040

Setting

0 The motor rotates in the counterclockwise direction as

viewed from the load when the Forward Run Command is executed.

1 The motor rotates in the clockwise direction as viewed from

the load when the Forward Run Command is executed.

Description

 Operation Check Points

• Motor rotates smoothly.

• Motor rotates in the correct direction.

• Motor does not have abnormal vibration or noise.

• Acceleration and deceleration are smooth.

• Motor current consumption is matching to load condition .

• Status indicators and Digital Operator display are correct.

Page 43

 Operating the Digital Operator

All functions of the V7AZ are set using the Digital Operator. Below are descriptions of the display and keypad sections.

Data Display Section

Function Indicators Indicators switch to another function each time

is pressed.

The displayed data can be changed.

Press to switch between functions.

Press to enter the constant data. (Displays the constant data when selecting a constant No. for the PRGM indicator.)

(Rear side of the Operator)

CN2-1:Operator circuit terminal  (voltage reference)

* For details, refer to Operator Analog Speed Reference Block Diagram on page 167.

Press to increase constant No./data value.

Operator CN2 terminal*

Status indicator (same function as RUN indicator)

Press to decrease constant No./data value.

CN2-3:GND for Operator circuit terminal

CN2-2:Operator circuit terminal  (current reference)

Details of Indicators (Color in parenthesis indicates the color of the indicator.)

FREF

Frequency reference

setting/monitoring

(GREEN)

F/R

Operator Run

Command FWD/REV

selection

(GREEN)

FOUT

Output frequency

monitoring

(GREEN)

Indicator/Display Section

IOUT

Output current

monitoring (GREEN)

LO/RE

LOCAL/REMOTE

Selection

(RED)

Frequency setting potentiometer Used to change frequency setting.

Press to run the motor.

Press to stop the motor. (Press to reset faults.)

MNTR

Multi-function

monitoring

(GREEN)

PRGM

Constant No./data

(RED)

JVOP-140 Digital Operator

Page 44

5 Operating the Inverter

 Description of Status Indicators

There are two Inverter operation status indicators on the middle right section of the face of the V7AZ. The combinations of these indicators indicate the status of the Inverter (ON, flashing, and OFF). The RUN indicator and status indicator on the button have the same function.

:Flashing (long flashing) :Flashing :OFF

:ON

RUN

ALARM

(Green)

(Red)

Operation ready

(During stop)

Coast to

a stop

The following table shows the relationship between the Inverter conditions and the indicator on the RUN button of the Digital Operator as well as the RUN and ALARM indicators on the face of the V7AZ.

The indicators are lit, unlit or flashing reflecting the order of priority.

Priority

Digital

Operator

RUN RUN ALARM

Face of

the V7AZ

Conditions

Power supply is shut down. Until the Inverter become ready after the power is turned ON.

Fault

Emergency stop (Stop Command is sent from the Digital Operator when the control circuit terminals were used to operate the Inverter.) Emergency stop (Emergency stop alarm is sent from the control circuit terminal.) Note: Indicators will be the same as with alarm (stopped) occurring after the Inverter is stopped.

Emergency stop (Emergency stop fault is sent from the control circuit terminal.) Note: Indicators will be the same as with fault occurring after the Inverter is stopped.

Alarm (Stopped)

Alarm (Operating) The Run Command is carried out when the External Baseblock Command using the multi-function contact input terminal is issued.

Stopped (during baseblock)

Operating (Including the status that the Inverter is operating at a frequency below the minimum output frequency.) During dynamic braking when starting.

During deceleration to a stop During dynamic braking when stopping.

Normal

operation

Page 45

For details on how the status indicators function for Inverter faults, refer to Chapter 8 Fault Diagnosis. If a fault occurs, the ALARM indicator will light.

The fault can be reset by turning ON the Fault Reset signal

NOTE

(or by pressing the key on the Digital Operator) with

the operation signal OFF, or by turning OFF the power supply. If the operation signal is ON, the fault cannot be reset using the Fault Reset signal.

Page 46

5 Operating the Inverter

 Function Indicator Description

By pressing on the Digital Operator, each of the function indicators can be selected.

The following flowchart describes each function indicator.

Power ON

Frequency reference setting/monitoring (Hz) Sets V7AZ operating speed.

Output frequency monitoring (Hz) Displays frequency that V7AZ is currently outputting. Setting disabled.

Output current monitoring (A) Displays current that V7AZ is currently outputting. Setting disabled.

If the V7AZ loses power while in one of these modes, it will return to the same mode once power is restored.

AMulti-function monitoring

Description of the selected monitor is displayed. (Refer to page 48 for details.)

FWD/REV Run selection Sets the motor rotation direction when the RUN command is given from the Digital Operator. Setting can be changed using the or key.

(forward run) (reverse run)

Monitor No. U-01: Frequency reference (FREF) U-02: Output frequency (FOUT) U-03: Output current (IOUT) U-04: Output voltage reference (Unit: 1V) U-05: DC voltage (Unit: 1V) U-06: Input terminal status U-07: Output terminal status U-08: Torque monitor U-09: Fault history (Last 4 faults) U-10: Software number U-11: Output power U-13: Cumulative operation time (5.5/7.5 kW only) U-15: Data reception error U-16: PID feedback U-17: PID input U-18: PID output U-19: Frequency reference bias

monitor (%) (for software No.

VSP010028 or later)

Page 47

LOCAL/REMOTE Selection

This function switches the operation: operation using the Digital Operator including frequency setting with potentiometer, operation using the input terminals, or operation through communications. Setting can be changed using the or key.

(Local)

Constant No./data Sets and changes data for a constant No.

(Refer to page 49 for details.)

Return to

WARNING

(Remote)

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.

 MNTR Multi-function Monitoring

Selecting the Monitor

Press the key. When is ON, data can be displayed by selecting the monitor number.

Example: Monitoring the Output Voltage Reference

If the V7AZ is stopped after it has changed to any of these modes during operation, it changes to Program mode from Drive mode. Even if the Run Command is turned ON again, the V7AZ does not operate. However, if n001=5, the Run Command can be received and the V7AZ will operate.

Select U-04 by pressing the or key.

Output voltage reference is displayed.

Page 48

5 Operating the Inverter

Monitoring

The following items can be monitored using U constants.

Con-

stant No.

U-01 Frequency Refere nce

U-02 Output Frequency

U-03

U-04 Output Voltage V Output voltage can be monitored.

U-05 DC Voltage V Main circuit DC voltage can be monitored.

U-06

U-07

U-08 Torque Monitor % The amount of output torque per rated torque of the

U-09 Fault History

U-10 Software No. - Software number can be checked.

U-11

U-13 Cumulative

U-15

U-16

U-17

U-18

U-19 Frequency Refere nce

Name Unit Description

Hz Frequency reference can be monitored.

(FREF)*

(FOUT)*

Output Current (IOUT)*

Input Terminal Status*

Output Terminal Status*

(Last 4 Faults)

PID Input*

PID Output*

Output Power*

Operation Time *

Data Reception Error*

PID Feedback*

Bias Monitor *

(Same as FREF)

Hz Output frequency can be monitored.

(Same as FOUT)

A Output current can be monito red.

(Same as IOUT)

- Input terminal status of control circuit terminals can be monitored.

- Output terminal status of control circuit terminals can be monitored.

motor can be monitored. When V/f control mode is selected, “---” is displayed.

- The last four fault history records are displayed.

kW Output power can be monitored.

×10 H Cumulative operation time can be monito red in units

of 10 hours.

- Contents of MEMOBUS commun ication data reception error can be checked. (Contents of transmission register No. 003DH are the same.)

% Input 100(%)/Max. outp ut frequency or equivalent

% ±100(%)/± Max. output frequency

% Bias can be monitored when Up /Down Command 2

is used.

* 1. The status indicator is not turned ON. * 2. Refer to the next page for input/output terminal status. * 3. The display range is from −99.9 to 99.99 kW.

When regenerating, the output power will be displayed in units of

0.01 kW when −9.99 kW or less and in units of 0.1 kW when more than −9.99 kW.

Page 49

In vector control mode, “---” will be displayed.

* 4. Applicable only for Inverters of 5.5 kW and 7.5 kW (200 V and 400 V

Classes). * 5. Refer to the next page for data reception error. * 6. Displayed in units of 0.1% when less than 100% and in units of 1% when

100% or more. The display range is from −999% to 999%. * 7. Applicable for Inverters with software version VSP0105740(4.0kW or

less) and VSP015750(5.5kW and 7.5kW).

 Input/Output Terminal Status

Input Terminal Status

1: Terminal S1 is closed. 1: Terminal S2 is closed. 1: Terminal S3 is closed. 1: Terminal S4 is closed. 1: Terminal S5 is closed. 1: Terminal S6 is closed. 1: Terminal S7 is closed. Not used

Output Terminal Status

1: Terminal MA-MC is closed. 1: Terminal P1-PC is closed. 1: Terminal P2-PC is closed.

Not used

 Data Reception Error Display

1: CRC error 1: Data length error Not used 1: Parity error 1: Over run error 1: Framing error 1: Timeover Not used

Page 50

5 Operating the Inverter

Fault History Display Method

When U-09 is selected, a four-digit box is displayed. The three digits from the right show the fault description, and the digit on the left shows the order of fault (from one to four). Number 1 represents the most recent fault, and numbers 2, 3, 4 represent the other faults, in ascending order of fault occurrence.

Example:

yyyyyy 4-digit number

 : Order of fault (1 to 4)

 : Fault description

"---" is displayed if there is no fault. (Refer to Chapter 8 Fault Diagnosis for details.)

Switching Fault History Records

The fault that is displayed can be changed using the or key.

Clearing the Fault History

Set constant n001 to 6 to clear the fault history. The display will return to n001 after 6 is set.

Note: Initializing the constants (n001=12, 13) also clears the fault history.

Setting and Referencing Constants

The following diagram shows how to select and change constants.

REMOTE/LOCAL selection

• Setting n003 (Run Command selection)

Constant No./ data

n003 Operation reference selection

Factory setting: 0 Operator reference

Set to 1 Control circuit terminal reference (flashing when changing)

Return to constant No. display after 1 second

Data set

Page 51

 Simple Data Setting

Digital setting (refer to 5 Operating the Inverter) and potentiometer set- ting are both possible for simple acceleration/deceleration operation of the V7AZ.

Digital setting is set at the factory (n004=1). For the model with JVOP140 Digital Operator (with potentiometer), factory setting is set by a frequency-setting potentiometer (n004=0).

Following is an example in which the function indicators are used to set frequency reference, acceleration time, deceleration time, and motor direction.

Page 52

Data Setting by Frequency-setting Potentiometer

Operation Steps Operator

1. Turn the potentiometer fully to the left. Then, turn the power ON.

2. F/R flashes. Select FWD/REV Run using keys.

Never select REV when reverse

NOTE

run is prohibited.

5 Operating the Inverter

Display

0.00

FOR

REV

Function

Indicators

FREF

F/R

Stat us

Indicators

RUN ALARM

3. Press DSPL to flash FREF. Then press RUN.

0.00

FREF

RUN ALARM

4. Operate the motor by turning the potentiometer to the right. (Frequency reference corresponding to the potentiometer position is displayed.)

If the potentiometer is switched rapidly, the motor also acceler-

NOTE

ates or decelerates rapidly corresponding to the potentiometer movement. Pay attention to load status and switch the potentiometer at a speed that does not affect motor movement.

Status indicators : ON : Flashing (Long flashing) : Flashing : OFF

0.00 to

60.00

Minimum

output

frequency is

1.50 Hz

FREF

RUN ALARM

Page 53

6 Programming Features

Factory settings of the constants are shaded in the tables.After wiring is complete, be sure to make the following settings before operation.

 Hardware

Make the following settings before the Inverter is turned ON.

Item Ref.

Sequence input signal (S1 to S7) polarity selection 226

Voltage reference / current reference input selection of control circuit terminal FR

 Software (Constant)

Item Ref.

Environment setting

Basic characteristics and frequency reference setting

Motor protection Motor Rated Current (n036) 136

Countermeasure for noise and leakage current

Using an optional braking resistor

Constant Selection / Initialization (n001) 53

Control Mode Selection (n002) 59

Run Command Selection (n003) 63

Frequency Reference Selection (n004) 64

Stopping Method Selection (n005) 106

V/f pattern setting (n011 to n017) 55

Acceleration Time 1 (n019), Deceleration Time 1 (n020)

Frequency Reference 1 to 8 (n024 to n031)

Electric Thermal Motor Protection Selection (n037)

Carrier Frequency Reference (n080) 94

Stall Prevention during Deceleration (n092)

page

126

page

136

134

Page 54

6 Programming Features

 Constant Setup and Initialization

 Constant Selection/Initialization (n001)

WARNING

If n001=5, a Run Command can be received even

The following table lists the data that can be set or read when n001 is set. By setting this constant, the fault history can be cleared and the constants initialized. Unused constants between n001 and n179 are not displayed.

n001 Setting

Constant That Can Be Set Constant That Can Be Referenced

0 n001 n001 to n179

n001 to n049

n001 to n079

n001 to n119

n001 to n179

n001 to n179 (Run Command can be received in Program mode.)

6 Fault history cleared

7 to 11 Not used

12 Initialize

* 1. Excluding setting-disabled constants. * 2. Refer to page 112.

NOTE

Initialize (3-wire sequence)

appears on the display for one second and the set data

returns to its initial values in the following cases.

1. If the set values of Multi-function Input Selections 1 to 7

Page 55

(n050 to n056) are the same

2. If the following conditions are not satisfied in the V/f pattern setting: Max. Output Frequency (n011) ≥ Max. Voltage Output

Note: Mid. Output Frequency (n014) is also used for motor 2 settings, n014 has to be lower than n140 and n147. For details, refer to Adjusting Torque According to Appli- cation (V/f Pattern Setting) on page 55.

3. If the following conditions are not satisfied in the jump frequency settings: Jump Frequency 3 (n085) ≤ Jump Frequency 2 (n084)

4. If the Frequency Reference Lower Limit (n034) ≤ Fre- quency Reference Upper Limit (n033)

5. If the Motor Rated Current (n036) ≤ 150% of Inverter rated current

6. If one of the Acceleration/Deceleration Time settings (n019 to n022) exceeds 600.0 sec. and it is tried to set n018 to 1 (Acceleration/Deceleration Time Unit 0.01 sec).

Frequency (n013) > Mid. Output Frequency (n014) ≥ Min. Output Frequency (n016)

≤ Jump Frequency 1 (n083)

Page 56

6 Programming Features

 Using V/f Control Mode

V/f control mode is preset at the factory.

Control Mode Selection (n002) = 0: V/f control mode (factory setting)

 Adjusting Torque According to Application

Adjust motor torque by using the V/f pattern and full-range automatic torque boost settings.

V/f Pattern Setting

Set the V/f pattern in n011 to n017 as described below. Set each pattern when using a special motor (e.g., high-speed motor) or when requiring special torque adjustment of the machine.

V: (Voltage)

(Frequency)

1: Vector control mode

Be sure to satisfy the following conditions for the settings of n011 to n017. n016 ≤ n014 < n013 ≤ n011 If n016 = n014, the setting of n015 will be disabled.

Note: n014 is also used for motor 2 settings. (n014 < n140, n147)

Constant

No.

n011

n012

n013

n014

n015

n016

n017

Max. Output Frequency

Max. Voltage

Max. Voltage Output Frequency (Base Frequency)

Mid. Output Frequency

Mid. Output Frequency Volta ge

Min. Output Frequency

Min. Output Frequency Volta ge

Name Unit Setting Range Factory

0.1 Hz 50.0 to 400.0 Hz 50.0 Hz

0.1 V

0.1 to 255.0 V

(0.1 to 510.0 V)

0.1 Hz 0.2 to 400.0 Hz 50.0 Hz

0.1 Hz 0.1 to 399.9 Hz 1.3 Hz

0.1 V

0.1 to 255.0 V

(0.1 to 510.0 V)

0.1 Hz 0.1 to 10.0 Hz 1.3 Hz

0.1 V 0.1 to 50.0 V (0.1 to 100.0 V)

Note: The values in the parentheses are for the 400 V Class of Inverters.

Setting

200.0 V

(400.0 V)

12.0 V*

(24.0 V)

12.0 V*

(24.0 V)

Page 57

* 10.0 V (20.0 V) for Inverters of 5.5 kW and 7.5 kW (200 V and 400 V

Classes).

Page 58

6 Programming Features

Typical Setting of the V/f Pattern

Set the V/f pattern according to the application as described below. For 400-V Class Inverters, the voltage values (n012, n015, and n017) should be doubled. When running at a frequency exceeding 50/60 Hz, change the Maximum Output Frequency (n011).

Note: Always set the maximum output frequency according to the motor char-

acteristics.

1. For General-purpose Applications

Motor Specification: 60 Hz

Motor Specification: 50 Hz (Factory setting)

2. For Fans/Pumps

Motor Specification: 60 Hz Motor Specification: 50 Hz

200

1.5 30 60 f

1.3 25 50 f

3. For Applications Requiring High Starting Torque

Motor Specification: 60 Hz Motor Specification: 50 Hz

200

24 18

1.5

360f

200

1.3 2.5

50 f

Increasing the voltage of the V/f pattern increases motor torque, but an excessive increase may cause motor overexcitation, motor overheating, or vibration.

Note: Constant n012 must be set to motor rated voltage.

Page 59

Full-range Automatic Torque Boost (when V/f Mode is Selected: n002=0)

The motor torque requirement changes according to load conditions. The full-range automatic torque boost adjusts the voltage of the V/f pattern according to requirements. The V7AZ automatically adjusts the voltage during constant-speed operation, as well as during acceleration.

The required torque is calculated by the Inverter. This ensures tripless operation and energy-saving effects.

Output voltage Torque Compensation Gain (n103) Required torque

Operation

(Voltage)

Required torque

f (Frequency)

Increase voltage

Normally, no adjustment is necessary for the Torque Compensation Gain (n103, factory setting: 1.0). When the wiring distance between the Inverter and the motor is long, or when the motor generates vibration, change the automatic torque boost gain. In these cases, set the V/f pattern (n011 to n017).

Adjustment of the Torque Compensation Time Constant (n104) and the Torque Compensation Iron Loss (n105) are normally not required.

Adjust the torque compensation time constant under the following conditions:

• Increase the setting if the motor generates vibration.

• Reduce the setting if response is slow.

Page 60

6 Programming Features

 Using Vector Control Mode

Set the Control Mode Selection (n002) to use vector control mode.

n002 = 0: V/f control mode (factory setting)

1: Vector control mode

 Precautions for Voltage Vector Control Application

Vector control requires motor constants. The factory settings constants have been set at the factory prior to shipment. Therefore, when a motor designed for an Inverter is used or when a motor from any other manufacturer is driven, the required torque characteristics or speed control characteristics may not be maintained because the constants are not suitable. Set the following constants so that they match the required motor constants.

Constant

No.

n106

n107

n036

n110

* Setting depends on Inverter capacity. (Refer to pages 245 and 246.)

Adjustment of the Torque Compensation Gain (n103) and the Torque Compensation Time Constant (n104) is normally not required.

Adjust the torque compensation time constant under the following conditions:

• Increase the setting if the motor generates vibration.

• Reduce the setting if response is slow.

Adjust the Slip Compensation Gain (n111) while driving the load so that the target speed is reached. Increase or decrease the setting in increments of 0.1.

Name Unit Setting

Motor Rated Slip

Motor Line-toneutral Resistance

Motor Rated Current

Motor No-load Current

0.1 Hz 0.0 to

0.001 Ω

(less than 10 Ω)

0.01 Ω

(10 Ω or more)

0.1 A 0% to 150%

1% 0% to 99%

Range

20.0 Hz

0.000 to

65.50 Ω

of Inverter

rated current

(100% =

motor rated

current)

Factory

Setting

Page 61

• If the speed is less than the target value, increase the slip compensation gain.

• If the speed is more than the target value, reduce the slip compensation gain.

Adjustment of the Slip Compensation Time Constant (n112) is normally not required. Adjust it under the following conditions:

• Reduce the setting if response is slow.

• Increase the setting if speed is unstable.

Select slip compensation status during regeneration as follows:

n113 Setting Slip Correction during Regenerative Operation

0 Disabled

1 Enabled

 Motor Constant Calculation

An example of motor constant calculation is shown below.

1. Motor Rated Slip (n106)

120 × Motor rated frequency (Hz)*

Number of motor poles

120/Number of motor poles

Motor rated speed (min

2. Motor Line-to-neutral Resistance (n107)

Calculations are based on the line-to-line resistance and insulation grade of the motor test report.

E type insulation: Test report of line-to-line resistance at 75°C (Ω) × 0.92 ×

B type insulation: Test report of line-to-line resistance at 75°C (Ω) × 0.92 ×

F type insulation: Test report of line-to-line resistance at 115°C (Ω) × 0.87 ×

3. Motor Rated Current (n036)

= Rated current at motor rated frequency (Hz)*1 (A)

4. Motor No-load Current (n110)

No-load current (A) at motor rated frequency (Hz)*

Rated current (A) at motor rated frequency (Hz)*

100 (%)

* 1. Base frequency (Hz) during constant output control * 2. Rated speed (rpm) at base frequency during constant output control

-1

Page 62

6 Programming Features

Set n106 (Motor Rated Slip), n036 (Motor Rated Current), n107 (Motor Line-to-neutral Resistance), and n110 (Motor No-load Current) according to the motor test report.

To connect a reactor between the Inverter and the motor, set n108 to the sum of the initial value of n108 (Motor Leakage Inductance) and the externally mounted reactor inductance. Unless a reactor is connected, n108 (Motor Leakage Inductance) does not have to be set according to the motor.

 V/f Pattern during Vector Control

Set the V/f pattern as follows during vector control:

The following examples are for 200 V Class motors. When using 400 V Class motors, double the voltage settings (n012, n015, and n017).

Standard V/f

(V)

[Motor Specification: 60 Hz]

(V)

[Motor Specification: 50 Hz]

High Starting Torque V/f

(V)

[Motor Specification: 60 Hz]

(Hz)

(V)

[Motor Specification: 50 Hz]

(Hz)

Page 63

When operating with a frequency larger than 60/50 Hz, change only the

n =

Max. Output Frequency (n011).

Constant output or variable output

Base point

012 200 V

Constant torque

n013 =60 or 50 Hz

n011 =90 Hz

 Switching LOCAL/REMOTE Mode

The following functions can be selected by switching LOCAL or REMOTE mode. To select the Run/Stop Command or frequency reference, change the mode in advance depending on the following applications.

• LOCAL mode: Enables the Digital Operator for Run/Stop Com-

• REMOTE mode: Enables Run Command Selection (n003).

mands and FWD/REV Run Commands. The frequency reference can be set using the potentiometer

or .

The frequency reference can be set using the Frequency Reference Selection (n004).

Page 64

6 Programming Features

 How to Select LOCAL/REMOTE Mode

When LOCAL/REMOTE switching function is not set for multi-function input selection

(When 17 is not set for any of constants n050 to n056)

When LOCAL/REMOTE switching function is set for multi-function input selection

(When 17 is set for any of constants n050 to n056)

Select Lo for operator

selection.

LO/RE

LOCAL mode

Select rE for operator

selection.

LO/RE

Turn ON multifunction input terminal.

Turn OFF multifunction input terminal.

REMOTE mode

 Selecting Run/Stop Commands

Refer to Switching LOCAL/REMOTE Mode (page 62) to select either the LOCAL mode or REMOTE mode.

The operation method (Run/Stop Commands, FWD/REV Run Commands) can be selected using the following method.

 LOCAL Mode

When Lo (local mode) is selected for Digital Operator ON mode, or when the LOCAL/REMOTE switching function is set and the input terminals are turned ON, run operation is enabled by the or

on the Digital Operator, and FWD/REV is enabled by the

ON mode (using the or key).

STOP

Page 65

 REMOTE Mode

1. Select REMOTE mode.

The following two methods can be used to select REMOTE mode.

• Select rE (REMOTE mode) for the selection.

• When the LOCAL/REMOTE switching function is selected for the multi-function input selection, turn OFF the input terminal to select REMOTE mode.

2. Select the operation method by setting constant n003. n003=0: Enables the Digital Operator (same with LOCAL mode).

=1: Enables the multi-function input terminal (see fig. below). =2: Enables communications (refer to page 141). =3: Enables communication card (optional).

• Example when using the multi-function input terminal as operation reference (two-wire sequence)

FWD Run/Stop REV Run/Stop

n003: 1 (Factory setting: 0) n050: 1 (Factory setting) n051: 2 (Factory setting)

• For an example of three-wire sequence, refer to page 112.

• For more information on how to select the sequence polarity, refer to page 226.

Note: When the Inverter is operated without the Digital Operator, always set

constant n010 to 0.

n010 = 0: Detects fault contact of the Digital Operator (factory setting)

= 1: Does not detect fault contact of the Digital Operator

 Operating (Run/Stop Commands) by Communications

Setting constant n003 to 2 in REMOTE mode enables using Run/Stop commands via MEMOBUS communications. For commands using communications, refer to page 141.

 Selecting Frequency Reference

Select REMOTE or LOCAL mode in advance. For the method for selecting the mode, refer to page 63.

Page 66

6 Programming Features

 LOCAL Mode

Select the command method using constant n008. n008=0: Enables using the potentiometer on the Digital Operator.

=1: Enables digital setting on the Digital Operator (factory setting). The factory setting for models with the Digital Operator with a potentiometer (JVOP-140) is n008=0.

• Digital Setting Using the Digital Operator

Input the frequency while is lit (press after setting the

ENTER

numeric value).

Frequency reference setting is effective when 1 (factory setting: 0) is set for constant n009 instead of pressing .

n009 =0: Enables frequency reference setting using the key.

=1: Disables frequency reference setting using the key.

ENTER

 REMOTE Mode

Select the command method in constant n004. n004 =0: Enables frequency reference setting using the potentiometer on the Digital Operator.

=1: Enables using frequency reference 1 (n024) (factory setting)

Factory setting of models with the Digital Operator with a potentiometer (JVOP-140) is n004=0.

=2: Enables a voltage reference (0 to 10 V) (refer to the figure

on page 65). =3: Enables a current reference (4 to 20 mA) (refer to page 126). =4: Enables a current reference (0 to 20 mA) (refer to page 126). =5: Enables a pulse train reference (refer to page 128). =6: Enables communication (refer to page 141). =7: Enables a voltage reference on Digital Operator circuit

terminal CN2 (0 to 10 V) =8: Enables a current reference on Digital Operator circuit

terminal CN2 (4 to 20 mA) =9: Enables communication card (optional).

Example of frequency reference by voltage signal

n004=2

(factory setting: 1)

Master Frequency Reference

(0 to +10 V)

2 kΩ

(Frequency Setting Power

+12 V 20 mA

FR (Master Frequency Reference)

FC (0 V)

Page 67

 Setting Operation Conditions

 Autotuning Selection (n139)

Motor data required for vector control can be measured and set by inputting the data from the nameplate of the motor to be used and performing autotuning for the motor. Autotuning is possible only for motor

1. Autotuning mode cannot be entered when motor 2 is selected

NOTE

using a Motor Switching Command allocated to a multi-function input (i.e., Autotuning Selection (n139) setting is not possible).

Constant

No.

n139 Autotuning Selection − 0 to 2 0

Name Unit Setting

Range

n139 Settings

Setting Function

0 Disabled

1 Rotational autotuning (motor 1)

2 Stationary autotuning for motor line-to-neutral

Note: Setting is not possible when motor 2 is selected using a Motor Switching

Command allocated to a multi-function input. ("Err" will be displayed on the Digital Operator, and the setting will return to the value before the change.)

resistance only (motor 1)

Use the following procedure to perform autotuning to automatically set motor constants when using the V/f control method, when the cable length is long, etc.

Setting the Autotuning Mode

One of the following two autotuning modes can be set.

• Rotational autotuning

• Stationary autotuning for motor line-to-neutral resistance only

Always confirm the precautions before autotuning.

Factory

Setting

Page 68

6 Programming Features

• Rotational Autotuning (n139 = 1)

Rotational autotuning is used only for open-vector control. Set n139 to 1, input the data from the nameplate, and then press the RUN key on the Digital Operator. The Inverter will stop the motor for approximately 1 minute and then set the required motor constants automatically while operating the motor for approximately 1 minute.

1. When performing rotational autotuning, be sure to sepa-

NOTE

rate the motor from the machine and first confirm that it is safe for the motor to rotate.

2. For a machine in which the motor itself cannot be rotated, set the values from the motor test report.

3. If automatic rotation poses no problem, perform rotational autotuning to ensure performance.

• Stationary Autotuning for Motor Line-to-neutral Resistance Only (n139 = 2)

Autotuning can be used to prevent control errors when the motor cable is long or the cable length has changed since installation or when the motor and Inverter have different capacities.

Set n139 to 2 for open-loop vector control, and then press the RUN key on the Digital Operator. The Inverter will supply power to the stationary motor for approximately 20 seconds and the Motor Line-to-neutral Resistance (n107) and cable resistance will be automatically measured.

1. Power will be supplied to the motor when stationary auto-

NOTE

tuning for motor line-to-neutral resistance only is performed even though the motor will not turn. Do not touch the motor until autotuning has been completed.

2. When performing stationary autotuning for motor line-toneutral resistance only connected to a conveyor or other machine, ensure that the holding brake is not activated during autotuning.

Precautions before Using Autotuning

Read the following precautions before using autotuning.

• Autotuning the Inverter is fundamentally different from autotuning the servo system. Inverter autotuning automatically adjusts parameters according to detected motor constants, whereas servo system autotuning adjusts parameters according to the detected size of the load.

Page 69

• When speed precision is required at high speeds (i.e., 90% of the rated speed or higher), use a motor with a rated voltage that is 20 V less than the input power supply voltage of the Inverter for 200Vclass Inverters and 40 V less for 400V-class Inverters. If the rated voltage of the motor is the same as the input power supply voltage, the voltage output from the Inverter will be unstable at high speeds and sufficient performance will not be possible.

• Use stationary autotuning for motor line-to-neutral resistance only whenever performing autotuning for a motor that is connected to a load. (To ensure performance, set the value from the motor test report.)

• Use rotational autotuning if performing autotuning is possible while not connected to a load.

• If rotational autotuning is performed for a motor connected to a load, the motor constants will not be found accurately and the motor may exhibit abnormal operation. Never perform rotational autotuning for a motor connected to a load.

• The status of the multi-function inputs and multi-function outputs will be as shown in the following table during autotuning. When performing autotuning with the motor connected to a load, be sure that the holding brake is not applied during autotuning, especially for conveyor systems or similar equipment.

Tuning Mode Multi-function Inputs Multi-function Outputs

Rotational autotuning Do not function. Same as during nor-

Stationary autotuning

for motor line-to-neu-

tral resistance only

Do not function. Maintain same status

• To cancel autotuning, always use the key on the Digital

mal operation

as when autotuning is

DSPL

STOP

started.

PRGM

Operator.

Precautions for Using Autotuning(when motor voltage > supply voltage)

Use the following procedure to perform autotuning if using a motor with a rated voltage higher than the Inverter input power supply.

1. Input the rated voltage from the motor nameplate for the Maximum Voltage (n012).

2. Set the Maximum Voltage Output Frequency (n013) to the base frequency on the

motor nameplate.

3. Perform autotuning.

4. Record the Motor No-load Current (n110).

Page 70

6 Programming Features

5. Calculate the rated secondary current of the motor using the following equation:

ated Secondary Current Rated Curre nt()

6. Input the power supply voltage for the Maximum Voltage (n012).

7. Input the following calculated value for the Maximum Voltage Output Frequency (n013):

Maximum Voltage Output Frequency Base Frequency on the Motor Nameplate Power Supply Voltage×

---------------------------------------------------------------------------------------------------------------------------------------------------------------

8. Perform autotuning again.

9. Record the Motor No-load Current (n110) again.

10. Calculate the rated secondary current of the motor using the following equation:

Rated Secondary Current Rated Secondary Current calculated in Step 5 Rated Voltage on Motor Nameplate×

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

11. Input the following calculated value for the Motor Rated Slip (n106):

Motor Rated Slip

Rated Voltage on the Motor Namplate

Power Supply Voltage

No-Load Current()

–=

⎛ ⎞

Base Freq. from Motor Nameplate Rated Speed from Motor Nameplate

⎝ ⎠

1. When speed precision is required at high speeds (i.e., 90% of the rated

NOTE

speed or higher), set n012 (Max. Voltage) to the input power supply voltage × 0.9.

2. When operating at high speeds (i.e., 90% of the rated speed or higher), the output current will increase as the input power supply voltage is reduced. Be sure to provide sufficient margin in the Inverter current.

No-Load Current in Step 4

-----------------------------------------------------------------------------------

Rated Secondary Current in Step 5

Number of Poles

----------------------------------------

×–

120

Operating Procedure

1. Confirm the following:

• The motor is separated from the machine system.

• The motor shaft lock key is removed.

• If there is a brake, it is released.

• The wiring is correct.

2. The Inverter power supply is ON.

3. There is no error.

4. Select Program Mode by pressing until is lit.

5. Set the following constants for the selected motor to the nameplate

Page 71

values.

Constant

No.

n012 Maximum Voltage 0.1 to

n013 Maximum Voltage

n036 Motor Rate d Current 0.0 to

n106 Motor Rate d Slip 0.0 to

Name Setting

Output Frequency

Range

Set to the rated voltage from

255.0

the nameplate.

0.2 to

Set to the base frequency from

400.0

the nameplate.

Set to the rated current from

999.9

the nameplate.

Set to the value of the following

20.0 Hz

equation using data from the nameplate: Base frequency − Rated speed × Number of poles / 120

Remarks

When performing precision setting (i.e., when performing autotuning using a motor test report or design data), the input data to set when autotuning will differ. Refer to the table below.

Name Simple Setting Precision Setting

Maximum Voltage Motor rated voltage Voltage under no-load con-

Maximum Voltage Output Frequency

Motor Rated Slip Base frequency − Rated

Motor base frequency Frequency under no-load

speed × Number of poles / 120

ditions at motor rated speed

conditions at rated speed

Slip at rated torque

6. Set the Autotuning Selection (n139).

7. Press the key to select the autotuning mode.

DSPL

• The Digital Operator will display "TUn." The  shows the

autotuning method selected for n139.

• All function indicators will turn OFF.

• The status indicators will return to operation ready status.

• Only the , , and keys will be accepted in

DSPL

STOP

autotuning mode.

• Autotuning will start when the key is input.

• Autotuning will be cancelled when the key is input

STOP

Page 72

6 Programming Features

• When the key is input, status will return again to Program

DSPL

Mode, and constants can be changed.

8. Press the key to perform autotuning. Power will be supplied to the motor with the selected autotuning method.

• "TUn" will flash during autotuning.

• All function indicators will turn OFF.

• The status indicators will change to normal operation status.

9. Tuning Completed

• When autotuning has been completed properly, "End" will be displayed and constants will be changed according to the tuning results.

• When rotational autotuning is completed, the Middle Output Frequency Voltage and Minimum Output Frequency Voltage will be calculated and set according to the selected Maximum Voltage as shown in the following table.

Constant

No.

n015 Middle Output Fre-

n017 Minimum Output Fre-

10.Press the key to select the Drive Mode. This completes auto-

Name Setting

quency Voltage

DSPL

Range

0.1 to

(Factory-set Middle Output Fre-

255.0

quency Voltage) × (Maximum Voltage set value) / (Factoryset Maximum Voltage)

0.1 to

(Factory-set Minimum Output

50.0

Frequency Voltage) × (Maximum Voltage set value) / (Factory-set Maximum Voltage)

Remarks

tuning.

Error Processing during Autotuning

• Errors and alarms that occur during normal operation are also detected during autotuning.

• If an error or alarm occurs, the motor will coast to a stop (baseblock) and autotuning will be cancelled.

Page 73

• If an error in measurement occurs or the key has been pressed

STOP

during autotuning, an EXX error will be displayed, the motor will coast to a stop, and autotuning will be cancelled. This error message, however, does not remain in the error log. Refer to page 211 for information on errors.

• If autotuning is cancelled, constants changed by autotuning will automatically return to their values before the start of autotuning.

• If an error occurs while decelerating to a stop at the end of autotuning, an error will be displayed on the Digital Operator, but autotuning processing will not be cancelled. The results of autotuning will be valid.

Precautions after Using Autotuning

For a fixed output region, the V/f pattern for the maximum point in the output region must be set after completing autotuning. To increase the motor’s rated speed by 1 to 1.2 times or when using a fixed output motor, make the following changes after autotuning. Do not change n012 (Max. Voltage) or n013 (Max. Voltage Output Frequency).

• Increasing the Motor’s Rated Speed by 1 to 1.2 Times

To increase the motor’s rated speed by 1 to 1.2 times, use the following formula to change the setting of Max. Output Frequency (n011):

Max. output frequency = (motor rated speed) x (no. of motor poles)/120 (Hz) x 1 to 1.2)

If the motor’s speed is increased beyond the rated speed, fixed output characteristics will be used at high speeds and motor torque will be reduced.

• Applications to Constant Output Motors Such as Motors for Machine Tools

Use the following formula to change the settings of n011 (Max. Output Frequency) when using a motor with a fixed output, e.g., a motor for a machine tool:

n011 = Frequency (Hz) at maximum speed under no-load conditions (load rate = 0)

Do not change the motor constants after performing autotuning.

Page 74

6 Programming Features

Digital Operator Displays during Autotuning

Function indicators on the Digital Operator change during autotuning as in the following diagram.

Function Indicators

Set constants required for autotuning.

PRGM

Digital Operator Display

• Maximum Voltage

• Maximum Voltage Frequency

Lit

• Motor Rated Current

• Motor Rated Slip

Set Autotuning Selection.

• Rotational / Resistance-only

stationary

Autotuning mode (Waiting for RUN input

TUn

• Set constants for tuning.

Lit

Resistance tuning

• DC voltage (20%, 40%, 60%)

TUn

Flashing

applied.

Resistance-only stationary

No-load Current Tuning

• Acceleration

• Tuning

• Deceleration

• Return constants set for tuning to their

original values.

• Write tuned constants.

Autotuning completed.

End

Lit

DSPL

Function

Frequency reference setting /

Indicators

monitor

FREF

Lit

RUN

DSPLDSPL

Rotational

STOP

Digital Operator Display

E03

Lit

Digital Operator Display

E12

Lit

Digital Operator Display

E04

Lit

Digital Operator Display

E09

Lit

Digital Operator Display

E05

Lit

Digital Operator Display

XXX

Lit

Cancelled because

STOP

of STOP key

Cancelled because of current detection error.

Cancelled because of resistance error.

Cancelled because of acceleration error.

Cancelled because of no-load current error.

Cancelled because of normally detected error.

RESET

Page 75

 Reverse Run Prohibit (n006)

The Reverse Run Prohibit setting disables accepting a Reverse Run Command from the control circuit terminal or Digital Operator. This setting is used for applications where a Reverse Run Command can cause problems.

Setting Description

0 Reverse run enabled.

1 Reverse run disabled.

 Multi-step Speed Selection

Up to 17 speed steps (including Jog frequency reference) can be set using the following combinations of frequency reference and input terminal selections.

8-step speed change

n003=1 (Operation mode selection) n004=1 (Frequency reference selection) n024=25.0 Hz (Frequency reference 1) n025=30.0 Hz (Frequency reference 2) n026=35.0 Hz (Frequency reference 3) n027=40.0 Hz (Frequency reference 4) n028=45.0 Hz (Frequency reference 5) n029=50.0 Hz (Frequency reference 6) n030=55.0 Hz (Frequency reference 7) n031=60.0 Hz (Frequency reference 8)

* For more information on how to

select the sequence voltage and the current input, refer to page 226.

When all multi-function

NOTE

reference inputs are OFF, the frequency reference selected by constant n004 (Frequency Reference Selection) becomes effective.

n054=6 (Multi-function contact input terminal S5) n055=7 (Multi-function contact input terminal S6) n056=8 (Multi-function contact input terminal S7) n053=1

FWD Run/Stop

REV Run/Stop

Multi-step Speed Ref 1

Multi-step Speed Ref 2

Multi-step Speed Ref 3

External Fault

Fault Reset

Page 76

6 Programming Features

(n031) 60.0 Hz

(n030) 55.0 Hz

(n029) 50.0 Hz

(n028) 45.0 Hz

(n027) 40.0 Hz

(n026) 35.0 Hz

Frequency reference

FWD (REV) Run/Stop

Multi-step speed ref. 1 (terminal S5) Multi-step speed ref. 2 (terminal S6) Multi-step speed ref. 3 (terminal S7)

(n025) 30.0 Hz

(n024) 25.0 Hz

n050 = 1 (Input terminal S1) (factory setting) n051 = 2 (Input terminal S2) (factory setting) n052 = 3 (Input terminal S3) (factory setting) n053 = 5 (Input terminal S4) (factory setting) n054 = 6 (Input terminal S5) (factory setting) n055 = 7 (Input terminal S6) (factory setting) n056 = 8 (Input terminal S7) (Change the setting to 8.)

16-step speed operation

Set frequency references 9 to 16 for n120 to n127.

Set the input terminal for a multi-step speed reference using the multifunction input selection.

 Operating at Low Speed

By inputting a Jog Command and then a Forward (Reverse) Run Command, operation is enabled at the jog frequency set in n032. When multi-step speed references 1, 2, 3 or 4 are input simultaneously with the Jog Command, the Jog Command has priority.

Constant No. Name Setting

n032 Jog Frequency Factory setting: 6.00 Hz

n050 to n056 Jog References Set to 10 for any constant.

Time

Page 77

 Adjusting Speed Setting Signal

The relationship between the analog inputs and the frequency reference can be set to provide the frequency reference as analog inputs to control circuit terminal FR or FC.

Frequency Reference

Max. Output Frequency X GAIN

Max. Output Frequency X BIAS

100

( ) indicates the value when a current reference input is selected

0 V (4 mA) (0 mA)

10 V

(20 mA)

1. Analog Frequency Reference Gain (n060) The frequency reference provided when the analog input is 10 V (or 20 mA) can be set in units of 1%. (Max. Output Frequency n011=100%)

* Factory setting: 100%

2. Analog Frequency Reference Bias (n061) The frequency reference provided when the analog input is 0 V (4 mA or 0 mA) can be set in units of 1%. (Max. Output Frequency n011=100%)

* Factory setting: 0%

Typical Settings

• To operate the Inverter with a frequency reference of 0% to 100% at an input voltage of 0 to 5 V

Max. frequency (100%)

Gain n060 = 200 Bias n061 = 0

Page 78

6 Programming Features

• To operate the Inverter with a frequency reference of 50% to 100% at an input voltage of 0 to 10 V

Max. frequency (100%)

Gain n060 = 100 Bias n061 = 50

0 V 10 V

 Adjusting Frequency Upper and Lower Limits

• Frequency Reference Upper Limit (n033)

Frequency

Internal frequency reference

Set frequency reference

Upper Limit (n033)

Frequency Lower Limit (n034)

Sets the upper limit of the frequency reference in units of 1%. (n011: Max. Output Frequency = 100%) Factory setting: 100%

• Frequency Reference Lower Limit (n034)

Sets the lower limit of the frequency reference in units of 1%. (n011: Max. Output Frequency = 100%) When operating at a frequency reference of 0, operation is continued at the frequency reference lower limit. However, if the frequency reference lower limit is set to less than the Minimum Output Frequency (n016), operation is not performed. Factory setting: 0%

 Using Four Acceleration/Deceleration Times

Decel

Decel Time 1 (n020)

Accel Time 3 (n041)

Accel Time 4 (n043)

Time 2 (n022)

Output Frequency

Forward (Reverse) Run Command

Multi-Step Speed Reference

Accel/Decel Time Selection 1

Accel/Decel Time Selection 2

Accel Time 2 (n021)

Accel Time 1 (n019)

* When deceleration to a stop is selected (n005 = 0).

Decel Time 4* (n044)

Decel Time 3* (n042)

Time

Page 79

By setting a multi-function input selection (any one of n050 to n056) to 11 (acceleration/deceleration time selection 1) or 27 (acceleration/ deceleration time selection 2), the acceleration/deceleration time is selected by ON/OFF combinations of acceleration/deceleration time selection 1 and acceleration/deceleration time selection 2 (terminals S1 to S7).

The combinations of acceleration/deceleration time selection settings are shown below.

Accleration/

Deceleration

Time Selection 1

OFF OFF Acceleration time 1

ON OFF Acceleration time 2

OFF ON Acceleration time 3

ON ON Acceleration time 4

Accleration/

Deceleration

Time Selection 2

Acceleration Time Deceleration Time

(n019)

(n021)

(n041)

(n043)

Deceleration time 1

Deceleration time 2

Deceleration time 3

Deceleration time 4

(n020)

(n022)

(n042)

(n044)

No. Name Unit Setting Range Factory

Setting

n019 Acceleration Time 1 Depends on

n020 Deceleration Time 1 10.0 s

n021 Acceleration Time 2 10.0 s

n018 setting.

(See the next

table.)

Depends on

n018 setting.

(See the next

table.)

10.0 s

n022 Deceleration Time 2 10.0 s

n041 Acceleration Time 3 10.0 s

n042 Deceleration Time 3 10.0 s

n043 Acceleration Time 4 10.0 s

n044 Deceleration Time 4 10.0 s

Page 80

6 Programming Features

n018 Settings

No. Unit Setting Range

n018 0 0.1 s 0.0 to 999.9 s (999.9 s or less)

1 s 1000 to 6000 s (1000 s or more)

1 0.01 s 0.00 to 99.99 s (99.99 s or less)

0.1 s 100.0 to 600.0 s (100 s or more)

Note: Constant n018 can be set while stopped.

If a value exceeding 600.0 s is set for the acceleration/deceleration time when n018=0 (in units of 0.1 s), 1 cannot be set for n018.

• Acceleration time Set the time needed for the output frequency to reach 100% from 0%.

• Deceleration time Set the time needed for the output frequency to reach 0% from 100%. (Max. Output Frequency n011 = 100%)

 Momentary Power Loss Ridethrough Method (n081)

WARNING

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.

When constant n081 is set to 1 or 2, operation automatically restarts even if a momentary power loss occurs.

Setting

*1, *2

Continuous operation after momentary power loss not enabled.

Continuous operation after power recovery within momentary power loss ridethrough time

0.5 s

Continuous operation after power recovery (Fault output not produced.)

Description

Page 81

* 1. Hold the operation signal to continue operation after recovery from a

momentary power loss.

* 2. When 2 is selected, the Inverter restarts if power supply voltage recovers

while the control power supply is held. No fault signal is output.

 S-curve Selection (n023)

To prevent shock when starting and stopping the machine, acceleration/ deceleration can be performed using an S-curve pattern.

Setting S-curve Selection

0 S-curve characteristic not provided.

1 0.2 s

2 0.5 s

3 1.0 s

Note: 1. S-curve characteristics are not supported for simple positioning con-

trol, so use a set value of 0.

2. The S-curve characteristic time is the time from acceleration/deceleration rate 0 to the normal acceleration/deceleration rate determined by the set acceleration/deceleration time.

Frequency Reference

Output Frequency

S-curve Characteristic Time (Ts)

Output Frequency

Time

The following time chart shows switching between FWD/REV run when decelerating to a stop.

Forward Run Command Reverse Run Command

Output Frequency

Acceleration

S-curve Characteristics in

Min. Output Frequency n016

Deceleration

Min. Output Frequency

Acceleration

n016

DC Injection Braking Time at Stop n090

Deceleration

Page 82

6 Programming Features

 Torque Detection

If an excessive load is applied to the machine, an increase in the output current can be detected to output an alarm signal to multi-function output terminal MA, MB, P1, or P2.

To output an overtorque detection signal, set one of the output terminal function selections n057 to n059 for overtorque detection (Setting: 6 (NO contact) or 7 (NC contact)).

Motor Current

Multi-function Output Signal (Overtorque Detection Signal) Terminal MA, MB, P1, or P2

* The overtorque detection release width (hysteresis) is set at approx. 5% of

the Inverter rated current.

Time

Overtorque Detection Function Selection 1 (n096)

Setting Description

0 Overtorque detection not provided.

1 Detected during constant-speed running. Oper-

2 Detected during constant-speed running. Oper-

3 Detected during running. Operation continues

4 Detected during running. Operation stops dur-

ation continues after detection.

ation stops during detection.

after detection.

ing detection.

1. To detect overtorque during acceleration/deceleration, set n096 to 3 or 4.

2. To continue operation after overtorque detection, set n096 to 1 or 3. During detection, the Digital Operator will display an alarm (flashing).

3. To stop the Inverter and generate a fault at overtorque detection, set n096

Page 83

to 2 or 4. At detection, the Digital Operator will display an fault (ON).

Overtorque Detection Level (n098)

Set the overtorque detection current level in units of 1%. (Inverter rated current = 100%) When detection by torque is selected, the motor rated torque becomes 100%.

Factory setting: 160%

Overtorque Detection Time (n099)

If the time that the motor current exceeds the Overtorque Detection Level (n098) is longer than Overtorque Detection Time (n099), the overtorque detection function will operate. Factory setting: 0.1 s

Overtorque/Undertorque Detection Function Selection 2 (n097)

When vector control mode is selected, overtorque/undertorque detection can be performed either by detecting the output current or the output torque. When V/f control mode is selected, the setting of n097 is invalid, and overtorque/undertorque is detected by the output current.

Setting Description

0 Detected by output torque

1 Detected by output current

 Frequency Detection Level (n095)

Effective when one or more of the Multi-function Output Selections n057, n058 and n059 are set for frequency detection (setting: 4 or 5). Frequency detection turns ON when the output frequency is higher or lower than the setting for the Frequency Detection Level (n095).

Frequency Detection 1

Output frequency ≥ Frequency Detection Level n095

Page 84

6 Programming Features

(Set n057, n058 or n059 to 4.)

Release

Frequency Detection Level [Hz] (n095)

Output Frequency

Frequency Detection Signal

Width

−2Hz

Frequency Detection 2

Output frequency ≤ Frequency Detection Level n095 (Set n057, n058 or n059 to 5.)

Release

Output Frequency

Frequency Detection Signal

Width +2Hz

Frequency Detection Level (Hz) (n095)

Page 85

 Jump Frequencies (n083 to n086)

This function allows the prohibition or “jumping” of critical frequencies so that the motor can operate without resonance caused by the machine system. This function is also used for dead band control. Setting the values to 0.00 Hz disables this function.

Set prohibited frequencies 1, 2, and 3 as follows:

Output Frequency

n083 ≥ n084 ≥ n085

If this condition is not satisfied, the Inverter will display fo one second and restore the

Frequency Reference

data to initial settings.

Operation is prohibited within the jump frequency ranges. However, the motor will operate without jumping during acceleration/ deceleration.

 Continuing Operation Using Automatic Retry Attempts (n082)

WARNING

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.

The Inverter can be set to restart and reset fault detection after a fault occurs. The number of self-diagnosis and retry attempts can be set to up to 10 in n082. The Inverter will automatically restart after the following faults occur:

OC (overcurrent)

OV (overvoltage)

The number of retry attempts is cleared to 0 in the following cases:

1. If no other fault occurs within 10 minutes after retry

2. When the Fault Reset signal is ON after the fault is detected

3. When the power supply is turned OFF

Page 86

6 Programming Features

 Frequency Offset Selection (n146)

An offset frequency (which can be set with a constant) can be added to or subtracted from the frequency reference using multi-function inputs.

Constant

No.

n083 Jump Frequency 1

n084 Jump Frequency 2

n085 Jump Frequency 3

Name Description Factory

(Offset Frequency 1)

(Offset Frequency 2)

(Offset Frequency 3)

1st digit of n146 is 0 or 1: Setting unit: 0.01 Hz Setting range: 0.00 to

400.0 Hz

1st digit of n146 is 2: Setting unit: 0.01% Setting range: 0.00% to

100.0% (Percentage of Maximum Output Frequency)

1st digit of n146 is 0 or 1: Setting unit: 0.01 Hz Setting range: 0.00 to

400.0 Hz

1st digit of n146 is 2: Setting unit: 0.01% Setting range: 0.00% to

100.0% (Percentage of Maximum Output Frequency)

1st digit of n146 is 0 or 1: Setting unit: 0.01 Hz Setting range: 0.00 to

400.0 Hz

1st digit of n146 is 2: Setting unit: 0.01% Setting range: 0.00% to

100.0% (Percentage of Maximum Output Frequency)

Setting

0.00 Hz

Page 87

Constant

No.

n146 Frequency Offset Se-

Name Description Factory

lection

n146 is separated in 2 digits (n146=xy). The first digi t “x” selects the use of parameters n083 to n085: n146= 0y: Disabled (n083 to n085 are jump frequencies) n146= 1y: Enabled (n083 to n085 are offset frequencies in Hz) n146= 2y: Enabled (n083 to n085 are offset frequencies in percent)

The 2nd digit “y” selects the sign of the offset frequencies. Refer to the table below for the possible combinations:

y n083 n0 84 n085

0+++

1 − ++

2+− +

3 −−+

4++−

5 − + −

6+−−

7 −−−

8 −−−

9 −−−

Note: When the 2nd digit of

n146 is changed, the set values of n083 to n085 will be initialized to 0.

Setting

• If the 1st digit “x” of Frequency Offset Selection (n146) is 0 (frequency offsets disabled), the set values of constants n083 to n085 will function as jump frequencies.

Page 88

6 Programming Features

• If the 1st digit “x” of Frequency Offset Selection (n146) is 1 or 2 (frequency offsets enabled), the set values of constants n083 to n085 will function as frequency offsets.

• In order to activate the offset frequencies 1 to 3 of the Multi-function Input Selections (n050 to n056) must be programmed to 30, 31 or 33. Depending on the input status following combinations of the offset frequencies can be used. Note that the sign specified with “y” is used.

Terminal Input Status Final Offset Amount

Offset

Frequency

Input 3

OFF OFF OFF None

OFF OFF ON n083

OFF ON OFF n084

OFF ON ON n083 + n084

ON OFF OFF n085

ON OFF ON n083 + n085

ON ON OFF n084 + n085

ON ON ON n083 + n084 + n085

Offset

Frequency

Input 2

Offset

Frequency

Input 1

• The enabled offset amount can be monitored on the display of U-12 on the Digital Operator.

Moni-

tor No.

U-12 Offset amount 1st digit “x”of n146 = 0: "----" displayed

Name Description

1st digit “x” of n146 = 1: Display range: −400 to 400.0 Hz 1st digit “x” of n146 = 2: Display range: − 100% to 100.0%

Page 89

The following block diagram illustrates the Frequency Offset Function.

n084

n083

Frequency

Reference

Lower Limit

n034 x n011

400 Hz

Frequency

n146,

right digit

Selected

Frequency

Reference

Frequency Offset

Input 1

n083

Frequency Offset

Input 2

n084

Frequency Offset

Input 3

n085

Reference

Upper Limit

n033 x n011



n146,

right digit

Offset

Volume

(U-12)

Jump Frequencies

n085

 Operating a Coasting Motor without Tripping

To operate a coasting motor without tripping, use the Speed Search Command or DC Injection Braking at Startup.

Speed Search Command

Restarts a coasting motor without stopping it. This function enables smooth switching between motor commercial power supply operation and Inverter operation.

Set a Multi-function Input Selection (n050 to n056) to 14 (Search Command from maximum output frequency) or 15 (Search Command from set frequency).

Build a sequence so that a FWD (REV) Run Command is input at the same time as the Search Command or after the Search Command. If the Run Command is input before the Search Command, the Search Command will be disabled.

Frequency Reference (U-01)

Page 90

6 Programming Features

Time Chart at Search Command Input

FWD (REV) Run Command

Search Command

Max. Output Frequency or Frequency Reference at Run Command Input

Output Frequency

Min. Baseblock Time (0.5 s)

0.5 s Min.

Speed Agreement Detection

Speed Search Operation

The deceleration time for speed search operation can be set in n101.

If the setting is 0, however, an initial value of 2.0 s will be used.

The speed search starts when the Inverter’s output current is greater than or equal to the speed search operation level (n102).

DC Injection Braking at Startup (n089, n091)

Restarts a coasting motor after stopping it. Set the DC injection braking time at startup in n091 in units of 0.1 s. Set the DC Injection Braking Current in n089 in units of 1% (Inverter rated current =100%). When the setting of n091 is 0, DC injection braking is not performed and acceleration starts from the minimum output frequency.

When n089 is set to 0, acceleration starts from the minimum output frequency after baseblocking for the time set in n091.

Min. Output Frequency n016

DC Injection Braking Time at Startup

n091

 Holding Acceleration/Deceleration Temporarily

To hold acceleration or deceleration, input an Acceleration/Deceleration Hold Command. The output frequency is maintained when an Acceleration/Deceleration Hold Command is input during acceleration or deceleration.

When the Stop Command is input while an Acceleration/Deceleration Hold Command is being input, the acceleration/deceleration hold is released and operation coasts to a stop.

Set a Multi-function Input Selection (n050 to n056) to 16 (acceleration/ deceleration hold).

Page 91

Time Chart for Acceleration/Deceleration Hold Command Input

FWD (REV) Run Command

Acceleration/ Deceleration Hold Command

Frequency Reference

Output Frequency

Frequency Agree Signal

Note: If a FWD (REV) Run Command is input at the same time as an Acceler-

ation/Deceleration Hold Command, the motor will not operate. However, if the Frequency Reference Lower Limit (n034) is set to a value greater than or equal to the Min. Output Frequency (n016), the motor will operate at the Frequency Reference Lower Limit (n034).

 External Analog Monitoring(n066)

Selects to output either output frequency or output current to analog output terminals AM-AC for monitoring.

Setting Description

0 Output frequency

1 Output current

2 Main circuit DC voltage

3 Torque monitor

4 Output power

5 Output voltage reference

6 Frequency reference monitor

7 PID Feedback Amount (10 V/Maxi-

8 Data Output via Communications

Note: Enabled only when n065 is set to 0 (analog monitor output).

mum Output Frequency in n011)

(MEMOBUS register No.0007H) (10 V/1000)

Page 92

6 Programming Features

In factory setting, analog voltage of approx. 10 V is output when output frequency (output current) is 100 %.

Output Frequency (Output Current)

100 %

Analog monitor gain can be set by n067.

10 V

Analog Output

Frequency Meter

FMAM

 Calibrating Frequency Meter or Ammerter (n067)

Used to adjust analog output gain.

Frequency Meter/Ammeter

(3 V 1 mA Full-scale)

n067

Output Frequency (Output Current)

100 %

Analog Output

n067 = 0.30

n067 = 1.00 Factory Setting

10 V3 V

Set the analog output voltage at 100 % of output frequency (output current). Frequency meter displays 0 to 60 Hz at 0 to 3 V.

n067 setting

10 V ×

 Using Analog Output (AM-AC) as a Pulse Train Signal

Output (n065)

0.30

Output frequency becomes

= 3 V

100 % at this value.

Analog output AM-AC can be used as a pulse train output (output frequency monitor, frequency reference monitor).

Set n065 to 1 when using pulse train output.

Constant No. Name Unit Setting

Factory setting

range

n065 Monitor Output Type - 0, 1 0

Page 93

n065 Setting

n065 Setting Description

0 Analog monitor output

1 Pulse monitor output

(Output frequency monitor)

Pulse train signal can be selected by setting in n150.

n150 Setting Description

0 Output

1 1F: Output frequency × 1

frequency

monitor

1440 Hz/Max. frequency (n011)

6 6F: Output frequency × 6

12 12F: Output frequency × 12

24 24F: Output frequency × 24

36 36F: Output frequency × 36

40 Frequency

41 1F: Output frequency × 1

reference

monitor

1440 Hz/Max. frequency (n011)

42 6F: Output frequency × 6

43 12F: Output frequency × 12

44 24F: Output frequency × 24

45 36F: Output frequency × 36

50 Data Output

Note: Enabled only when n065 is set to 1 (pulse monitor output).

via Communications

0 to 14,400 Hz output (MEMOBUS register No.000AH) (1 Hz/

Page 94

6 Programming Features

At the factory setting, the pulse of 1440 Hz can be output when output frequency is 100 %.

Output Frequency

AC (0 V)

Peripheral devices must be connected according to the fol-

NOTE

lowing load conditions when using pulse monitor output. The machine might be damaged when the conditions are not satisfied.

Used as a Sourcing Output

Output Voltage

VRL (V)

+5 V 1.5 kΩ or more

+8 V 3.5 kΩ or more

+10 V 10 kΩ or more

Used as a Sinking Input

External Power Supply (V)

Sinking Current (mA)

+12 VDC ±5 % or less

16 mA or less

Pulse

Load Impedance

(kΩ)

100 %

AC (0 V)

1440 Hz

Pulse Monitor Output

VRL

AC (0 V)

External Power Supply

Sink Current

Load Impedance

(0 V)

Page 95

 Carrier Frequency Selection (n080)14kHz max

Set the Inverter output transistor switching frequency (carrier frequency).

Setting Carrier Frequency (kHz) Metallic

Noise from

Motor

Noise and

Current

Leakage

7 12 fout (Hz)

8 24 fout (Hz)

9 36 fout (Hz)

1 2.5 (kHz)

2 5.0 (kHz)

3 7.5 (kHz)

Higher

Not

audible

Smaller

Larger

4 10.0 (kHz)

12 14 (kHz)

Note: When the carrier frequency has been set to 14 kHz, use a MEMOBUS

baud rate of 4,800 bps or lower.

Page 96

6 Programming Features

If the set value is 7, 8, or 9, the carrier frequency will be multiplied by the same factor as the output frequency.

n080=7

fc=12 fout

fc=Carrier Frequency

2.5 kHz

1.0 kHz

83.3 Hz 208.3 Hz

fout=Output Frequency

n080=8

fc=24 fout

n080=9

fc=36 fout

2.5 kHz

1.0 kHz

2.5 kHz

1.0 kHz

fc=Carrier Frequency

41.6 Hz 104.1 Hz

fc=Carrier Frequency

27.7 Hz 69.4 Hz

fout=Output Frequency

Page 97

The factory setting depends on the Inverter capacity (kVA).

Voltage

Class (V)

200 V Sin-

gle-phase

or 3-phase

3-phase

400 V

Capacity

(kW)

0.1 4 10 0.8

0.25 4 10 1.6 1.4 (88%)

0.55 4 10 3.0 2.6 (87%)

1.1 4 10 5.0 4.3 (86%)

1.5 3 7.5 8.0 7.0 6.0 (75%)

2.2 3 7.5 11.0 10.0 8.6 (78%)

4.0 3 7.5 17.5 16.5 14.0 (80%)

5.5 3 7.5 25 23 18.0 (72%)

7.5 3 7.5 33 30 22.1 (67%)

0.37 3 7.5 1.2 1.0 0.8 (67%)

0.55 3 7.5 1.8 1.6 1.28 (71%)

1.1 3 7.5 3.4 3.0 2.2 (65%)

1.5 3 7.5 4.8 4.0 3.2 (67%)

2.2 3 7.5 5.5 4.8 3.84 (70%)

3.0 3 7.5 7.2 6.3 4.9 (68%)

4.0 3 7.5 9.2 8.1 6.4 (74%)

5.5 3 7.5 14.8 * 12.0 (81%)

7.5 3 7.5 18 17 13.0 (72%)

Factory Setting Maximum

Setting Carrier

Frequency

(kHz)

Continuous

Output

Current (A)

* Reduction of the current is not necessary.

Reduced

Current

(A)

Continu-

ous Output

Current

(Reduction

Output

Current)

(A)

FC =

14 kHz

0.7 (88%)

Page 98

1. Reduce the continuous output current when changing the

NOTE

2. If the wiring distance is long, reduce the Inverter carrier

Wiring Distance

between Inverter

and Motor

Carrier Fre-

quency (n080

setting)

3. Set the Carrier Frequency Selection (n080) to 1, 2, 3, or 4

4. If the Inverter repeatedly stops and starts with a load

5. The carrier frequency is automatically reduced to 2.5 kHz

6 Programming Features

carrier frequency to 4 (10 kHz) for 200 V Class (1.5 kW or more) and 400 V Class Inverters. Refer to the table above for the reduced current. Operation Condition

• Input power supply voltage: 3-phase 200 to 230 V (200 V Class) Single-phase 200 to 240 V (200 V Class) 3-phase 380 to 460 V (400 V Class)

• Ambient temperature:

−10 to 50°C (14 to 122°F) (Protection structure: open chassis type IP20, IP00)

−10 to 40°C (14 to 105°F) (Protection structure: enclosed wall-mounted type NEMA 1 (TYPE 1))

frequency as described below.

Up to 50 m Up to 100 m More than 100 m

10 kHz or less

(n080=1, 2, 3, 4,

7, 8, 9)

5 kHz or less

(n080=1, 2, 7, 8, 9)

2.5 kHz or less

(n080=1, 7, 8, 9)

when using vector control mode. Do not set it to 7, 8, or 9.

exceeding 120% of the Inverter rated current within a cycle time of 10 minutes or less, reduce carrier frequency at a low speed. (Set constant n175 to 1.)

when the Reducing Carrier Frequency Selection at Low Speed (n175) is set to 1 and the following conditions are satisfied: Output frequency ≤ 5 Hz Output current ≥ 110% Factory setting: 0 (Disabled)

Page 99

6. When a carrier frequency of 14 kHz (n080) is selected, automatic carrier frequency reduction during low-speed overcurrent is automatically enabled, even if the Reducing Carrier Frequency Selection at Low Speed (n175) is set to 0 (disabled).

7. When the carrier frequency is set to 14 kHz, the following functions will be disabled:

• Fast digital input (START/STOP)

• UP 2/DOWN 2

Important

• Motor overheat protection using PTC thermistor input

• Bi-directional PID output

• Frequency offsets

 Operator Stop Key Selection (n007)

WARNING

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.

Set the processing when the key is pressed during operation

STOP

either from a multi-function input terminal or communications.

Setting Description

0 The STOP key is effective either from a multi-

1 The STOP key is ineffective either from multi-

function input terminal or communications. When the STOP key is pressed, the Inverter stops according to the setting of constant n005. At this time, the Digital Operator displays a alarm (flashing). This Stop Command is held in the Inverter until both Forward and Reverse Run Commands are open, or until the Run Command from communications goes to zero.

function input terminals or communications.

Page 100

6 Programming Features

 Second motor selection

This function switches between two motors for one Inverter. V/f control must be used for the second motor. Switching is possible from a multifunction input.

The following constants are used as control constants for motor 2.

Constant

No.

− Control Mode Selec-

n140 Motor 2 Maximum Out-

n158 Motor 2 Maximum

n147 Motor 2 Maximum

n159 Motor 2 Middle Output

n014 Middle Output

n160 Motor 2 Minimum Out-

n161 Motor 2 Rated Current 0.1 A 0.0 to 150% of

n162 Motor 2 Rated Slip 0.1 Hz 0.0 to 20.0 Hz *2

Name Unit Setting Range Factory

tion

put Frequency

Vol tage

Voltage Output Frequency

Frequency Voltage

Frequency

put Frequency Voltage

− V/f control must be

0.1 Hz 50.0 to 400.0 Hz 50.0 Hz

0.1 V

0.1 Hz 0.2 to 400.0 Hz 50.0 Hz

0.1 V

0.1 Hz 0.1 to 399.9 Hz 1.3 Hz

0.1 V

used.

0.1 to 255.0 V

0.1 to 50.0 V

Inverter rated cur-

rent

Note: Not initialized when constants are initialized.

* 1. Upper limit of setting range and factory setting are doubled for 400-V

Class Inverters.

* 2. Depends on Inverter capacity.

Setting

−

200.0 V

12.0 V

*1*2

12.0 V

*1*2

Omron VARISPEED V7 DATASHEET

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

1 Receiving the Product

 Checking the Nameplate

2 Identifying the Parts

3 Mounting

 Choosing a Location to Mount the Inverter

 Mounting Dimensions

 Mounting/Removing Components

 Removing the Front Cover

 Mounting the Front Cover

 Removing the Terminal Cover

 Removing the Digital Operator

 Mounting the Digital Operator

 Mounting the Bottom Cover

4 Wiring

 Wire and Terminal Screw Sizes

 Wiring the Main Circuits

 Wiring the Control Circuits

 Wiring Inspection

5 Operating the Inverter

 Test Run

 Selecting Rotation Direction

 Operation Check Points

 Operating the Digital Operator

 Description of Status Indicators

 Function Indicator Description

 MNTR Multi-function Monitoring

 Input/Output Terminal Status

 Data Reception Error Display

 Simple Data Setting

6 Programming Features

 Hardware

 Software (Constant)

 Constant Setup and Initialization

 Constant Selection/Initialization (n001)

 Using V/f Control Mode

 Adjusting Torque According to Application

 Using Vector Control Mode

 Precautions for Voltage Vector Control Application

 Motor Constant Calculation

 V/f Pattern during Vector Control

 Switching LOCAL/REMOTE Mode

 How to Select LOCAL/REMOTE Mode

LOCAL mode

 Selecting Run/Stop Commands

 REMOTE Mode

 Operating (Run/Stop Commands) by Communications

 Selecting Frequency Reference

 LOCAL Mode

 REMOTE Mode

 Setting Operation Conditions

 Autotuning Selection (n139)

 Reverse Run Prohibit (n006)

 Multi-step Speed Selection

 Operating at Low Speed

 Adjusting Speed Setting Signal

 Adjusting Frequency Upper and Lower Limits

 Using Four Acceleration/Deceleration Times

 Momentary Power Loss Ridethrough Method (n081)

 S-curve Selection (n023)

 Torque Detection

 Frequency Detection Level (n095)

 Jump Frequencies (n083 to n086)

 Continuing Operation Using Automatic Retry Attempts (n082)

 Frequency Offset Selection (n146)

 Operating a Coasting Motor without Tripping

 Holding Acceleration/Deceleration Temporarily

 External Analog Monitoring(n066)

 Calibrating Frequency Meter or Ammerter (n067)

 Carrier Frequency Selection (n080)14kHz max

 Operator Stop Key Selection (n007)

 Second motor selection