Mitsubishi Electric MELSECQ Series User Manual page 50

4
PROCEDURES AND SETTINGS BEFORE
OPERATION
Phase A
Phase B
4
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(2) Example of wiring with an encoder of open collector output type (12/24
VDC)
QD63P6
Phase A pulse input +
A19
Phase A pulse input -
B19
240 1/8 W
Phase B pulse input +
A18
Phase B pulse input -
B18
240 1/8 W
12/24 VDC
External power supply
0 V
Figure 4.8 Example of wiring with an encoder (12/24 VDC)
According to external power supply voltage, connect load resistance between each pulse
input terminal of the QD63P6 and shielded twisted pair cable. The following table shows
conditions on load resistance.
External voltage [V]
12
24
4.4 Wiring
4.4.2 Example of wiring the module and an encoder
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Load resistance
12 V 820 1/4 W
24 V 2200 1/2W
Shielded
twisted pair cable
Load resistance
Shielded
twisted pair cable
Table 4.5 Conditions on load resistance
Load resistance [ ]
820
2200
Encoder
12/24 V
OUT
Shield
E
12/24 V
OUT
Shield
E
12/24 V
0 V
Capacity [W] Tolerance [%]
1/4
1/2
5
5