Wiring Precautions - Mitsubishi QD75M1 User Manual

5.1 Wiring Precautions

(1) Use separate cables for connecting to the QD75 and for the power cable that create
surge and inductance.
(2) The cable for connecting QD75 can be placed in the duct or secured in place by clamps.
If the cable is not placed in the duct or secured by clamps, unevenness or movement of
the cable or careless pulling on it could result in damage to the unit or cable or defective
cable connections could cause mis-operation of the unit.
(3) If a duct is being used and cables to connect to QD75 are separated from the power
line duct, use metal piping.
Ground the pipes securely after metal piping.
(4) The cable is to use the twisted pair shielded cable (wire size 0.3 mm
must be grounded on the QD75 side. (The following figure shows a wiring example.)
[Wiring example of shielded cable]
The following shows a wiring example for noise reduction in the case where the
connector (A6CON1) is used.
Connector
(A6CON1)
To QD75
The length between the connector and the shielded
cables should be the shortest possible.
To external
devices
To external device
Use the shortest possible length to
ground the 2mm or more FG wire.
(The shield must be grounded on
the QD75 side.)
7
). The shielded
2
Shielded
cable
To external device