Mounting The Modules; Precautions For Connecting And Mounting Modules - Mitsubishi Electric LCPU-U-HW Safety Manuallines

3. MOUNTING THE MODULES

This section explains how to interconnect modules and how to mount
them on a DIN rail. The following illustration is an example of the
interconnection.
POINT
(1) Modules must be mounted on a DIN rail.
(2) Connect an END cover on the right of the terminal module.
(3) For installation environment and mounting position of the modules, refer to the
following.
MELSEC-L CPU Module User's Manual
(Hardware Design, Maintenance and Inspection)
3.1

Precautions for Connecting and Mounting Modules

• Do not directly touch any conductive parts and electronic
components of the module. Doing so can cause malfunction or
failure of the module.
• After the first use of the module (including a display unit), the
number of connections/disconnections is limited to 50 times.
Exceeding the limit (in accordance with IEC 61131-2) may cause
malfunction.
• Do not drop or apply strong shock to the module case or
terminal block connector.
• Do not remove a printed-circuit board of the module from the
case. Doing so may cause failure of the module and/or printed-
circuit board.
• When installing the programmable controller in a control panel,
fully consider its operability, maintainability, and environmental
resistance. Securely fix all the MELSEC-L series modules used
with the DIN rail. For details on the mounting method, refer to the
MELSEC-L CPU Module User's Manual (Hardware Design,
Maintenance and Inspection).
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