Wiring Information
in
Parking and access control equipment manufactured in the UK
Automatic Raise Arm Barriers
38
Menu/Ok
SR2 B121BD
1
2
Q1
1
2
Q2
1
2
Q3
1
2
Q4
+
-
I1
I2 I3 I4 IB
ID
IC
IE
24VDC
24VDC
24VDC
Analog or
IB....IE
Inputs I1...I4
Outputs
Q1...Q4 : Relay 8A
+ - 24VDC
+ - 230VAC
PLC
Power
Supply
Relay
This shows 24v wiring ONLY!!!
24v Negative
Switch from Q4 1