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GT1-CT01 Counter Unit Section 5-4
Wiring
Note 1. Do not use the same power supply for the encoder as that used for other
I/O Units or communications.
2. Wire colors in parentheses are the previous JIS colors for photoelectric
and proximity sensors.
Encoder input External input External output
Encoder
(incremental,
open-collector
output type)
NPN output
3-wire sensor (photo-
electric sensor, prox-
imity sensor)
Solenoid/Valve
Solenoid/Valve
Black
(white)
B
l
ue
(black)
(red)
Bro
w
n
The NCs are input terminals
for connections. They have
no shielding function. Carry
out processes for shielding
(grounding) as necessary.
2-wire sensor
(limit switch)
Brown
(white)
Blue
(black)
24 VDC 24 VDC 24 VDC
Internal connections
−−−
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