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SOLID-STATE RELAY WIRING DIAGRAM
Connection to a PLC with NPN input
Internal PLC
connection
PLC
Power sup.
Power sup.
O.C. IN
O.C. IN
Connection to a PLC / Instrument
digital input with separate Power
Supply
Power Supply
12 - 24 VDC
12 - 24 VDC
PLC / Instrument
Digital INPUT
Digital INPUT
User
AC or DC
Power
The alarm is off during normal
operation and goes ON according to
Relay setting.
If Imax > 50 mA use external Relay.
6
5
Imax = 50 mA
Imax = 50 mA
10 Kohm
6
COM
5
N.O.
Imax = 50 mA
Connection to an User
6
COM
User
6
C
COM
5
N.O.
5
N.O.
Imax = 50 mA
Connection to an User
Connection to a PLC with PNP input
Internal PLC
connection
PLC
Power sup.
Power sup.
O.C. IN
COM
O.C. IN
C
N.O.
Connection to a PLC / Instrument
digital input for Voltage Free Contacts
(REED)
PLC
DIGITAL INPUT N
C
DIGITAL INPUT 2
DIGITAL INPUT 1
REF PLC
AC or DC
C
Power
6
COM
5
N.O.
Imax
6
COM
5
N.O.
Imax = 50 mA
AC or DC
Power
User
+V
Imax
External Relay
Imax
V= 12-24 VAC/VDC
Imax = 50 mA
Imax = 50 mA
-V
6
COM
C
5
N.O.
Imax = 50 mA
Imax = 50 mA
6
COM
C
5
N.O.
User
Imax = 50 mA
N.C.
COM
N.O.
11
6
5
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