Omron V7 User manual

VARISPEED V7

Compact Sensorless Vector Inverter

USER’S MANUAL

Manual No.

TOEPC71060605-02-OY

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 specifi-

cations of the V7AZ. Read this instruction manual thoroughly before opera-

tion.

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.

NOTATION FOR SAFETY PRECAUTIONS

Read this instruction manual thoroughly before installation, operation, mainte-

nance, or inspection of the V7AZ. In this manual, safety precautions are classi-

fied as either warnings or cautions and are indicated as shown below.

Indicates a potentially hazardous situation which, if not avoided, may result in

death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may result in

minor or moderate injury or damage to equipment.

It may also be used to alert against unsafe practices.

Even items classified as cautions may result in serious accidents in some situa-

tions. Always follow these important precautions.

: Indicates information to insure proper operation.

WARNING

CAUTION

NOTE

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 ser-

vicing the Inverter, and then wait at least one minute after the power sup-

ply 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 vul-

nerable to high voltage.

• Do not remove the Digital Operator or the blank cover unless the power

supply is turned OFF. Never touch the printed circuit board (PCB) while

the power supply is turned ON.

• This Inverter is not suitable for use on a circuit capable of delivering more

than 18,000 RMS symmetrical amperes, 250 V maximum (200 V Class

Inverters) or 18,000 RMS symmetrical amperes, 480 V maximum (400 V

Class Inverters).

PRECAUTIONS FOR CE MARKINGS

• Only basic insulation to meet the requirements of protection class 1 and

overvoltage category II is provided with control circuit terminals.

Additional insulation may be necessary in the end product to conform to

CE requirements.

• For 400 V Class Inverters, make sure to ground the supply neutral to con-

form to CE requirements.

• For conformance to EMC directives, refer to the relevant manuals for the

requirements.

Document No. EZZ006543

• Use 75°C copper wire or the equivalent.

CAUTION

RECEIVING THE PRODUCT

MOUNTING

(Ref. page)

• Do not install or operate any Inverter that is

damaged or has missing parts.

Failure to observe this caution may result in injury or

equipment damage.

(Ref. page)

• Lift the Inverter by the heatsinks. When moving

the Inverter, never lift it by the plastic case or the

terminal cover.

Otherwise, the main unit may fall and be damaged.

• 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.

CAUTION

WIRING

(Ref. page)

• Only begin wiring after verifying that the power

supply is turned OFF.

Failure to observe this warning may result in an elec-

tric shock or a fire.

• Wiring should be performed only by qualified

personnel.

Failure to observe this warning may result in an elec-

tric 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 elec-

tric shock or a fire.

• For 400 V Class, make sure to ground the sup-

ply neutral.

Failure to observe this warning may result in an elec-

tric 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 multi-

function input terminal parameter is set.

Failure to observe this warning may result in injury.

112

WARNING

(Ref. page)

• Verify that the Inverter rated voltage coincides

with the AC power supply voltage.

Failure to observe this caution may result in personal

injury or a fire.

• 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 cir-

cuit and the control circuits.

Failure to observe this caution may result in a mal-

function, 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 connec-

tors 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 termi-

nals.

Delayed response may cause injury or damage the

machine.

155

CAUTION

OPERATION

(Ref. page)

• Only turn ON the input power supply after con-

firming 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 elec-

tric shock.

• Never operate the Digital Operator or DIP

switches with wet hands.

Failure to observe this warning may result in an elec-

tric shock.

• Never touch the terminals while current is flow-

ing, even if the Inverter is stopped.

Failure to observe this warning may result in an elec-

tric 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 warn-

ing may result in injury.

• When continuous operation after power recov-

ery 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 warn-

ing may result in injury.

• The Digital Operator stop button can be dis-

abled by a setting in the Inverter. Install a sepa-

rate emergency stop switch.

Failure to observe this warning may result in injury.

WARNING

(Ref. page)

• If an alarm is reset with the operation signal ON,

the Inverter will restart automatically. Reset an

alarm only after verifying that the operation sig-

nal 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 multi-

function input terminal parameter is set.

Failure to observe this warning may result in injury.

112

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

even while changing a constant. If sending a

Run Command while changing a constant, such

as during a test run, be sure to observe all

safety precautions.

Failure to observe this warning may result in injury.

46, 53

(Ref. page)

• Never touch the heatsinks, which can be

extremely hot.

Failure to observe this caution may result in harmful

burns to the body.

• 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.

WARNING

CAUTION

• If using an Inverter with an elevator, take safety

measures on the elevator to prevent the eleva-

tor from dropping.

Failure to observe this caution may result in injury.

187

• Do not perform signal checks during operation.

The machine or the Inverter may be damaged.

• 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)

CAUTION

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