User`s manual

3
[Startup and Maintenance Precautions]
[Disposal Precautions]
CAUTION
● Mitsubishi programmable controllers must be installed in control panels. Connect the main power
supply to the power supply module in the control panel through a relay terminal block. Wiring and
replacement of a power supply module must be performed by qualified maintenance personnel with
knowledge of protection against electric shock. For wiring methods, refer to the QCPU User's
Manual (Hardware Design, Maintenance and Inspection).
WARNING
● Do not touch the module and the connectors while power is on. Failure to do so may cause
malfunction.
● Shut off the external power supply for the system in all phases before cleaning the module or
retightening the screws. Failure to do so may 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.
CAUTION
● Do not disassemble or modify the modules. Doing so may cause failure, malfunction, injury, or a fire.
● Shut off the external power supply for the system in all phases 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, and the
terminal block to/from the module more than 50 times (IEC 61131-2 compliant) respectively.
Exceeding the limit of 50 times may cause malfunction.
● Before handling the module and the connectors, 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.
● Startup and maintenance of a control panel must be performed by qualified maintenance personnel
with knowledge of protection against electric shock. Lock the control panel so that only qualified
maintenance personnel can operate it.
CAUTION
● When disposing of this product, treat it as industrial waste.