Mitsubishi MELSEC-Q EQ-V680D1 User Manual page 4

[WIRING PRECAUTIONS]
 When connecting a cable, first verify the connection interface type and then connect the cable
properly. Connecting a cable to a wrong interface or miswiring a cable results in the risk of
module and external device malfunction.
 Tighten the screws within the specified torque range. If a screw is too loose, a short circuit or
malfunction may result. If a screw is too tight, screw and/or module damage may occur, resulting
in a short circuit or malfunction.
 When removing a communication cable or power cable connected to the module, do not pull the
cable section. For cables with connectors, hold the connector of the section connected to the
module during removal. For terminal block cables, loosen the screws of the terminal block and
then remove the cable. Pulling a cable while it is connected to the module results in the risk of
malfunction and module and cable damage.
 Be careful to prevent foreign matter such as dust or wiring chips from entering the module
interior. Failure to do so results in the risk of fire, failure, and malfunction.
 A protective film is attached to the top of the module to prevent foreign matter, such as wire
chips, from entering the module during wiring.
Do not remove the film during wiring.
Remove it for heat dissipation before system operation.
 Do not connect the power supply in reverse. Doing so results in risk of failure.
 Use the module after confirming that the external input DC power supply is within the rated
power supply voltage.
Failure to do so results in the risk of failure and malfunction.
 Do not bundle the control or communication cables with or install the cables close to the main
circuit, power lines, or the like. Be sure to separate the cables and lines by about 100mm or more.
[STARTUP AND MAINTENANCE PRECAUTIONS]
 Do not disassemble or modify the module. Doing so results in the risk of failure, malfunction,
injury, and fire.
 Be sure to shut off all phases of the external power supply used by the system before module
installation or removal. Failure to do so results in the risk of module failure and malfunction.
 After product use begins, be sure the number of times the module, base, and terminal block are
installed and removed does not exceed 50 (JIS B 3502 compliant). Exceeding 50 results in the
risk of malfunction.
 Do not touch the terminals while the module is powered. Doing so results in the risk of
malfunction.
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CAUTION
CAUTION
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