Wiring; Redundant Function Modules - Mitsubishi Electric MELSEC iQ-R Series User Manual

5.2

Wiring

Redundant function modules

This section describes the wiring to redundant function modules.
Wiring method
Connect the tracking cables from the OUT connector of a redundant function module to the IN connector of the other
redundant function module.
IN OUT
For the specifications of the tracking cables connected to redundant function modules, refer to the following.
Page 78 Redundant Function Module
Connecting/disconnecting tracking cables
■Connection procedure
1.
Pay attention to the orientation of the tracking cable connector and insert the connector to a redundant function module
until it clicks. A redundant function module has one IN connector and one OUT connector. Connect the IN connector of
system A and the OUT connector of system B, and connect the OUT connector of system A and the IN connector of
system B.
2.
Pull each cable lightly and check that it has been connected securely.
■Disconnection procedure
1.
Disconnect the tracking cables while pressing the connector hook.
Precautions
• There are restrictions on the cable bending radius. For details, refer to the specifications of the tracking cables used.
• Place the cables in a duct or clamp them. If not, dangling cables may swing or inadvertently be pulled, resulting in damage
to the module or cables or malfunction due to poor contact.
• When connecting tracking cables, pay attention not to touch optical fiber cores of the connectors on the cables and module
sides and prevent dirt and dust from adhering to them. If oil on hands, dirt, and dust adhere to the optical fiber cores, the
transmission loss increases and tracking may not work properly.
• Hold the connector of the tracking cables to connect or disconnect the cable. Pulling the cable connected to the module
may result in malfunction or damage to the module or cable or malfunction due to poor contact.
5 PROCEDURE FOR STARTING UP A REDUNDANT SYSTEM
62
5.2 Wiring
IN OUT