YASKAWA Varispeed V7 User manual

YASKAWA

Varispeed V7

INSTRUCTION MANUAL

YA S K A WA

MANUAL NO. TOE-S606-13C

COMPACT GENERAL-PURPOSE INVERTER

Upon receipt of the product and prior to initial operation, read these instructions

thoroughly and retain them for future reference.

FOR DeviceNet COMMUNICATIONS

(VOLTAGE VECTOR CONTROL)

PREFACE

Yaskawa’s Varispeed V7 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 Varispeed V7. Read

this instruction manual thoroughly before operation.

YASKAWA ELECTRIC CORPORATION

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 Yaskawa representative.

• 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 Varispeed V7. In this manual, safety precautions are

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

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

death or serious injury.

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

minor or moderate injury or damage to equipment.

It may also be used to alert against unsafe practices.

Even items classified as cautions may result in serious accidents in some 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. EZZ008389 for Japanese version,

Document No. EZZ008390 for English version

• Use 75°C copper wire or equivalent.

Low voltage wires must be wired with Class I Wiring.

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), IP20 (top closed type).

Overheating may cause a fire or damage the Inverter.

• The Varispeed V7 generates heat. For effective

cooling, mount it vertically.

Refer to the figure in Mounting Dimensions on

page 25.

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

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 .

(200 V Class: Ground to 100 Ωor less, 400 V

Class: Ground to 10 Ωor less)

Failure to observe this warning may Result in an

electric 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.

• The motor will start automatically if the power

supply is turned ON while the RUN signal is ON.

Turn ON the power supply only after confirming

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.

159

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, or W/T3.

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 the constant with an ENTER command

by communications, be sure to take measures

for an emergency stop by using the external ter-

minals.

Delayed response may cause injury or damage the

machine.

126

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, remove the covers, or set

rotary switches 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 stopping.

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.

148

• 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.

144

• 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.

159

(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.

• 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.

WARNING

CAUTION

MAINTENANCE AND INSPECTION

(Ref. page)

• Never touch high-voltage terminals on the

Inverter.

Failure to observe this warning may result in an elec-

trical shock.

• Disconnect all power before performing mainte-

nance or inspection, and then wait at least one

minute after the power supply is disconnected.

Confirm that all indicators are OFF before pro-

ceeding.

If the indicators are not OFF, the capacitors are still

charged and can be dangerous.

• Do not perform withstand voltage test on any

part of the Varispeed V7.

The Inverter is an electronic device that uses semi-

conductors, 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.

202

WARNING

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