6.2.2
Overview of control unit electrical connections
Operation
Service
Warning
Malfunction
GM901
Control Unit
PE N L1
D
H
D
C
A
N GN
C
A
GN
C
A
N
-
+24V
N-
L
N GN
C
A
GN
C
A
N
-
+24V
N
Analog in
0...20 mA
Analog out
0...20 mA
Digital out
AC/DC 48 V, 1 A
Digital in
230V
or
115V
40..60 Hz
Se
rv
ic
e
R
S 232
Sensor
Sensor
Service Test
AI1
DO2
DO1
DO3
Contrast
Figure 13: Electrical wiring of control unit
1
Connections for wiring
2
Operating voltage selection: 115 V or 230 V AC
3
Power supply:115 V/230 V AC
4
Receiver connection
5
Rotary potentiometer for setting display contrast
6
DO1 Malfunction / Maintenance
7
DO2 Limit
NOTE
The control unit is delivered from the factory as 230 V AC version.
ELECTRICAL INSTALLATION
6
8008932/16YT/V4-0/2022-02 | SICK
O P E R A T I N G I N S T R U C T I O N S | GM901-02
31
Subject to change without notice