Mitsubishi Electric MELSECQ Series User Manual page 49

4
PROCEDURES AND SETTINGS BEFORE
OPERATION
Downloaded from ManualsNet.com
POINT
When wiring the QD63P6 and an encoder, separate the power supply cable and
signal line.
The following diagram shows an example of wiring with Phase A. (Wire Phase B
as well).
[Wiring example]
QD63P6 Pulse
input -
Phase A
Pulse
input +
External 5 VDC
power supply
0 V
[Incorrect wiring example]
QD63P6
Pulse
input -
Phase A
Pulse
input +
5 VDC
External
power supply
0 V
Figure 4.7 Incorrect wiring example
search engine
Shielded twisted pair cable
Shield
Figure 4.6 Wiring example
Shielded twisted pair cable
Shield
4.4.2 Example of wiring the module and an encoder
OUT
+5 V
Encoder
0 V
E
OUT
Since the current
through the shielded
+5 V
twisted pair cable flows
in the same direction,
Encoder
0 V
canceling effect does
not work, which results
E
in susceptibility to
electromagnetic
induction.
4.4 Wiring
1
2
3
4
5
6
7
8
4
- 9