Omron VARISPEED G7 Instruction Manual page 66

Three-phase,
200 VAC (400 VAC)
•
Shielded twisted-pair wires must be used for signal lines.
•
Do not use the pulse generator's power supply for anything other than the pulse generator (encoder).
Using it for another purpose can cause malfunctions due to noise.
•
The length of the pulse generator's wiring must not be more than 100 meters.
PG power
supply
+12 V
Short for
open-col-
lector
input
Pulse
input
Inverter
R/L1 U/T1
V/T2 V/T2
W/T3 W/T3
PC-A2
4CN 4CN
E E
TA2 (E)
Fig 2.23 Wiring an Open-collector Input
Fig 2.24 I/O Circuit Configuration of the PG-A2
Installing and Wiring Option Cards
+12 V power supply
1
0 V power supply
2
3
4
TA1 Open collector output (A/B phase)
5
Pulse 0 V
6
7
Pulse monitor output
8
Pulse input
Pulse
monitor
output
33
2-