Mitsubishi Electric QJ71PB93D User Manual page 5

 Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter
can cause a fire, failure, or malfunction.
 Place the PROFIBUS cables in a duct or clamp them.
If not, dangling cables may swing or inadvertently be pulled, resulting in damages to the module
or cables or malfunctions due to poor contact.
 When disconnecting the PROFIBUS cable from the module, do not pull by holding the cable
section. To disconnect the cable, make sure to hold the connector which is coupled with the
module. Do not attempt to pull the cable to disconnect it from the module. It could damage the
module or the cable, or cause malfunction due to a poor contact of the cable.
 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.
[STARTING AND MAINTENANCE PRECAUTIONS]
 Shut off the external power supply (all phases) used in the system before cleaning the module
or retightening the connector screws or module fixing screws.
Failure to do so may result in electric shock or cause the module to fail or malfunction.
Undertightening can cause drop of the screw, short circuit, or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or
malfunction.
 Do not disassemble or modify the modules.
Doing so may cause failure, malfunction, injury, or a fire.
 Use any radio communication device such as a cellular phone or PHS (Personal Handy-phone
System) more than 25cm (9.85 inches) away in all directions from the programmable controller.
Failure to do so may cause malfunction.
 Shut off the external power supply (all phases) used in the system before mounting or removing
the module.
Failure to do so may cause the module to fail or malfunction.
 After the first use of the product, do not mount/remove the module to/from the base unit more
than 50 times (IEC 61131-2 compliant).
Exceeding the limit of 50 times may cause malfunction.
 Before handling the module, touch a grounded metal object to discharge the static electricity
from the human body.
Failure to do so may cause the module to fail or malfunction.
A - 3
CAUTION
!
WARNING
!
CAUTION
!
A - 3