Hitachi LQZ700 User manual

First Edition, July 2003, SVE-1-123(B) (out of print)

Second Edition, September 2008, SVE-1-123(D) (out of print)

Third Edition, March 2012, SVE-1-123(E)

The contents of this publication may be revised without prior notice.

No part of this publication may be reproduced in any form or by any means without permission in

writing from the publisher.

Printed in Japan.

BI<IC> (FL-MW2007, AI10)

SAFETY PRECAUTIONS

Be sure to read this manual and all other attached documents carefully before installing,

operating inspecting or conducting maintenance on this unit. Always use this unit properly.

Be sure to carefully read the information about the device, the safety information and precautions

before using this unit. Be sure that the person(s) responsible for maintenance receives and

understands this manual completely.

This manual divides the safety precautions into DANGERs and CAUTIONs.

: Failure to observe these warnings may result in death or serious injury.

: Failure to observe these cautions may result in injury or property

damage.

Failuretoobserveany may lead to serious consequences.

All of these DANGERs and CAUTIONs provide very important precautions and should

always be observed.

Additional safety symbols representing a prohibition or a requirement are as follows:

: Prohibition. For example, “Do not disassemble” is represented by:

: Requirement. For example, if a ground is required, the following will be shown:

DANGER

CAUTION

1. Installation Precautions

DANGER

zIf an emergency stop circuit, interlock circuit, or similar circuit is to be

formulated, it must be positioned external to this module. If you do not

observe this precaution, equipment damage or accident may occur when this

module becomes defective.

zHigh voltages may cause electrical shock hazards. If you disconnect/

connect the module or cable with the power supply switched on, you may

inadvertently touch a power supply terminal and receive an electric shock or

the equipment may become damaged due to short circuit or noise. Switch off

the power supply before disconnecting/connecting the module or cable.

CAUTION

zUse the module in an environment specified in the catalog and manual.

If you use the module in an environment where the module is subjected to high

temperature, high humidity, dust, corrosive gas, vibration, or impact, a risk of

electric shock, fire, or malfunction may result.

zObserve the installation procedure stated in the manual.

If the module is improperly installed, it may drop, become defective, or

malfunction.

zDo not allow wire cuttings or other foreign matter to enter the module.

The entry of foreign matter in the module may result in a fire or cause the

module to become defective or malfunction.

zWhen the module is to be positioned at a location where it may become wet

with water, place it within a drip-proof enclosure to prevent it from becoming

defective.

zThe module may become defective due to a high temperature, which may

result from heat dissipation failure. It may also malfunction due to

electromagnetic interference from nearby equipment. For heat dissipation

and electromagnetic radiation minimization, provide the specified clearances

among the module, its enclosure, and neighboring equipment.

CAUTION

zThe degree of temperature rise varies depending on how the module is

mounted. The mounting intervals specified in the manual should be used as

a guide only. While a test run is conducted after completion of mounting,

measure the temperature near the module to check whether it is within the

specified range. If the measured temperature is beyond the specified range,

increase the mounting intervals or provide forced air cooling with a cooling fan.

zDust or other foreign matter might accumulate on the connector, resulting in

poor contact. Immediately after the module is unpacked, perform the

mounting and wiring procedures.

zTo prevent the module from being damaged, observe the following precautions

when you mount or demount the module:

•Before mounting the module to the mount base connector, check that the

connector pins are properly aligned and not bent, broken, or soiled with dirt

or the like.

•Ensure that the module is parallel to the mount base vertical surface as

shown below when mounting. If you connect a module to or disconnect it

from its connector while it is tilted, the connector pins may become damaged.

•If the mount base is positioned overhead due to the employed enclosure

structure, use a stepladder or the like and mount the module squarely. If

you mount the module obliquely, the connector may become damaged.

[Bad example] [Good example]

Module

Mount base

REQUIREMENT

zFasten the mount base to a vertical surface. Fastening the mount base to a

horizontal surface lessens the heat dissipation effects and allows the

temperature to rise, thereby rendering the module defective or incurring

component parts deterioration.

zBefore installing the module, discharge any static buildup from your body

because static electricity may render the module defective.

zProperly tighten the screws. If they are inadequately tightened, malfunction,

smoke emission, or combustion may occur.

PROHIBITION

Do not disassemble or modify the module. Failure to observe this precaution

may result in a fire or cause the module to become defective or malfunction.

2. Wiring Precautions

DANGER

zSwitch off the power supply before making connections to the terminal block.

Making connections with the power supply being switched on may incur

electrical shock hazards.

zElectric shock hazards exist so that you might suffer burns or become

electrocuted. Further, the system might malfunction due to noise

interference. Therefore, ground the line ground (LG), frame ground (FG), and

shield wire (SHD).

REQUIREMENT

zInsulate the mount base from the enclosure. To keep the mount base

insulated, avoid removing the insulation sheets that are supplied with the

mount base.

zThe LG is a ground terminal for power supply noise. The FG and SHD are

ground terminals for the noise in the remote I/O, communication module and

other external interface lines. To avoid interference between the ground

terminals, separately ground the LG and FG.

CAUTION

zIf the input voltage for the power supply module is within the specified range

but close to the upper or lower limit, you should conclude that an input power

problem exists, and ask the power supply facility manager to conduct an

inspection.

zBe sure that the power source for supplying power to various modules is rated

as specified. The use of a differently rated power source may cause a risk of

fire.

zOnly qualified personnel should be allowed to make cable connections.

Incorrect wiring connections may cause a risk of fire, malfunction, or electric

shock.

REQUIREMENT

zBefore supplying power to the equipment, thoroughly check the wiring

connections.

zBefore making power supply wiring connections, make sure that no voltage is

applied to the power cable. Immediately after completion of power supply

wiring, be sure to install the terminal cover.

zEnsure that the communication, power supply, motive power, and other cables

are routed apart from each other. It is essential that the inverter, motor,

power regulator, and other motive power cables be routed at least 300 mm

away from the other types of cables. Also, be sure that the communication

and motive power cables are routed within separate conduits.

zProvide with protect elements, such as a fuse and/or a circuit protector, in an

external power supply for short circuit protection. Use the suitable protect

elements for suited rating.

PROHIBITION

To avoid noise-induced malfunction, do not bundle the 100 VAC/100 VDC wiring

and network cable together, but route them at least 100 mm away from each

other.

3. Operating Precautions

REQUIREMENT

The module could fire or fail under heat. When the temperature in the enclosure

exceeds 48°C, the maximum output current flowing through the power module is

limited. Its current is limited to 5.85 A at 55°C. Allowing for the environment in

which the module is installed, install a cooling fan in the enclosure or limit the

number of modules installed in it. For more information, refer to “USER’S

MANUAL R70 BASIC MODULE (manual number SVE-1-111)” or “USER’S

MANUAL BASIC MODULE (manual number SVE-1-100).”

DANGER

zIf the module emits smoke or foreign odor, immediately switch off the power

supply and investigate the problem cause.

zDo not perform any installation, wiring, handling, or internal modification

procedures other than stated in this manual. In no event will Hitachi be

responsible for personal injury or death or any damage to Hitachi's product or

peripheral equipment arising out of the use of such an unauthorized

procedure.

zWhile the power is applied, never touch a terminal strip or connector pin. If

you touch a terminal strip or connector pin while the power is applied, you may

receive an electric shock.

CAUTION

zBefore changing the program, generating a forced output, or performing the

RUN, STOP, or like procedure during an operation, thoroughly verify the safety

because the use of an incorrect procedure may cause equipment damage or

other accident.

zWhen you switch on the power supply, follow the specified sequence. Failure

to follow the specified sequence may cause equipment damage or other

accident.

zDo not use a transceiver, cellular phone, or similar device near the module

because module malfunction or system failure may occur due to noise.

zTo avoid malfunction, ensure that the power supply is switched on and off at

intervals of longer than 1 second.

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