Mitsubishi QD75P1N User Manual

4 - 14
MELSEC-Q
4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT
4.3.2 Wiring of the differential driver common terminal
When the differential driver output system (QD75D N/QD75D ) is used, a potential
difference between commons may occur between the differential driver common
terminal and the differential receiver common terminal of the drive unit. To remove the
potential difference between commons, connect the differential driver common terminal
of the QD75D
N/QD75D and the differential receiver common terminal of the drive
unit.
When the common terminal of the drive unit is photocoupler-connected, the wiring to
the differential driver common terminal of the QD75D
N/QD75D is not needed
since a potential difference between commons does not exist.
(For the drive unit specifications, refer to the manual of the used drive unit.)
Applicable connectors
To wire the differential driver common terminal, use the wire applied to the following
table.
Wire diameter Type Material Temperature rating
0.24 to 2.5mm
2
(24 to 12AWG)
Stranded wire/single wire Copper 75˚C or more
Wiring example
The following shows an example of wiring to the differential driver common terminal of
the QD75D
N/QD75D .
Up to two cables can be connected to one differential driver common terminal. (For
details, refer to Section 3.1 "Performance specifications".
To differential receiver common terminal of drive unit
Module front
Differential driver common terminal
Module bottom
Module front
Module bottom
Insert until hook
catches.
Module side

Mitsubishi QD75P1N Specifications

General

Brand	Mitsubishi
Model	QD75P1N
Category	Controller
Language	English