Mitsubishi MELESEC-ST User Manual page 6

[WIRING PRECAUTIONS]
Prevent foreign matter such as chips or wiring debris from entering the module. Failure to do so
may cause fires, damage or erroneous operation.
When connecting the communication and power supply cables to the module, always run them
in conduits or clamp them. Not doing so can damage the module and cables by pulling a
dangling cable accidentally or can cause a malfunction due to a cable connection fault.
When disconnecting the communication and power supply cables from the module, do not hold
and pull the cable part. Disconnect the cables after loosening the screws in the portions
connected to the module. Pulling the cables connected to the module can damage the module
and cables or can cause a malfunction due to a cable connection fault.
[STARTUP AND MAINTENANCE PRECAUTIONS]
Do not touch the terminals while power is on.
Doing so could cause shock or erroneous operation.
Make sure to shut off all phases of the external power supply for the system before cleaning the
module or tightening screws.
Not doing so can cause the module to fail or malfunction.
Do not disassemble or modify the modules.
Doing so could cause failure, erroneous operation, injury or fire.
Do not drop or give a strong impact to the module since its case is made of resin. Doing so can
damage the module.
Make sure to shut off all phases of the external power supply for the system before mounting/
removing the module onto/from the control panel. Not doing so can cause the module to fail or
malfunction.
The number of terminal block installations/removals is limited to 50 times or less.
(Compliant with JIS B 3502)
Exceeding the count of 50 may cause malfunctions.
A - 4
CAUTION
!
DANGER
!
CAUTION
!
A - 4