Mitsubishi MELSEC-Q Series User Manual page 99

5
PROCEDURES AND SETTINGS BEFORE
OPERATION
[Wiring examples using duct (improper example and improved example)]
Control panel
Control panel
Relay
Drive Drive
unit unit
Noise source
(Power system,
etc.)
Relay
Noise source
(Power system,
etc.)
Relay
Relay
Programmable QD72
controller CPU P3C3
Modified
Relay
Relay
Programmable QD72
controller CPU
P3C3
Drive Drive
unit unit
5.4.1 Wiring precautions
Wiring duct
The drive units are
placed near the noise
source. The connection
cable between the
QD72P3C3 and drive
units is too long.
Wiring duct
The QD72P3C3 and drive
units are placed closely.
The connection cable
between them is located
separately from the power
line and as short as possible.
(In this example, the cable is
connected without using the
duct.)
5
5.4 Wiring
- 11
1
2
3
4
5
6
7
8