Mounting The Modules; Precautions For Connecting And Mounting Modules - Mitsubishi MELSEC L Series User Manual

4.2

Mounting the Modules

This section describes how to interconnect modules and how to mount them on a DIN rail.
● Modules must be mounted on a DIN rail.
● Connect an END cover on the right of the terminal module.
4.2.1

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 product (module, display unit, and terminal block), the number of connections/
disconnections is limited to 50 times (in accordance with IEC 61131-2).
Exceeding the limit may cause malfunction.
• Do not drop or apply strong shock to the module case, terminal block, and connectors.
• Do not remove the printed-circuit board of the module from the case.
Doing so may cause failure of the module and/or printed-circuit board.
• To prevent consumption of the CPU module battery, the battery connector is disconnected at shipment.
Connect the battery connector before using the CPU module for the first time. (
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Page 86, Section 14.3)