Wiring - Mitsubishi Electric QD75MH1 User Manual

4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT

4.3 Wiring

4.3.1 Precautions for wiring
Completely turn off the externally supplied power used in the system before installing or placing

wiring.

Not doing so may cause electric shock or damage to the product.
Check the layout of the terminals and then properly route the wires to the module.
Solder connector for external input signal cable properly.
Insufficient soldering may cause malfunction.
Be careful not to let foreign matter such as sawdust or wire chips get inside the module.
These may cause fires, failure or malfunction.
The top surface of the module is covered with protective films to prevent foreign objects such as
cable off cuts from entering the module when wiring.
Do not remove this film until the wiring is complete.
Before operating the system, be sure to remove the film to provide adequate ventilation.
Securely connect the connector for SSCNET
When removing the cable or power supply cable from the module, do not pull the cable. When
removing the cable with a connector, hold the connector on the side that is connected to the
module.
Pulling the cable that is still connected to the module may cause malfunction or damage to the
module or cable.
The cable used for connecting the QD75MH external input signal cable and SSCNET
should not be routed near or bundled with the main circuit cable, power cable and/or other such
load –carrying cables other than those for the PLC. These cables should be separated by at
least 100mm (3.94inch) They can cause electrical interference, surges and inductance that can
lead to mis-operation.
The cable for connecting QD75MH can be secured in duct or bundle fixing.
If the shielded cable is not secured, unevenness or movement of the shielded cable or careless
pulling on it could result in damage to the QD75MH or servo amplifier or shielded cable or
defective cable connections could cause mis-operation of the unit.
When pulling out SSCNET
SSCNET connector. If the end face of SSCNET
interrupted and it may cause malfunctions.
The precautions for wiring the QD75MH are given below. Refer to this section as well
as "4.1.3 Handling precautions" when carrying out the work.
!
cable from SSCNET
DANGER
!
CAUTION
cable to the bottom connector on the module.
connector, be sure to put the cap on
connector is dirty, optical transmission is
4 - 10
MELSEC-Q
cable