Mitsubishi MELSEC-WS series, User Manual

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Chapter 6
70
Mounting/Dismantling
6
Mounting/Dismantling
This chapter describes the mounting of the modules of the MELSEC-WS safety
controller.
6.1 Steps for mounting the modules
The MELSEC-WS safety controller must be mounted in a control cabinet with
at least IP 54 enclosure rating!
 In a MELSEC-WS safety controller, the WS0-CPU0, WS0-CPU1 or WS0-CPU3 is
positioned at the far left.
 The two optional network modules follow directly to the right of the CPU module.
 Connect further MELSEC-WS safety I/O modules (e.g. WS0-XTIO or WS0-XTDI)
on the right side of the network modules or on the right side of the CPU module, if
no network module is used. The I/O modules can be mounted in any order.

Connect an additional safety relay output module (WS0-4RO) on the far right of
the entire MELSEC-WS safety controller.
 The modules are located in a 22.5 mm wide modular system for 35 mm DIN
mounting rails to IEC/EN 60715.

The modules are connected to each other via the plug connection
integrated in the housing. Take into account that, when replacing a module, the
MELSEC-WS modules have to be pushed approx. 10 mm apart before the
corresponding module can be removed from the DIN mounting rail.
 Mount the modules in accordance with EN 50274.

Ensure that suitable ESD protective measures are taken during mounting.
Otherwise the backplane bus may be damaged.
 Take suitable measures to ensure that foreign matter does not enter the
connector openings, in particular that of the memory plug.
ATTENTION