CIRCULAR SOLUTIONS CS-BRT20, User Manual

Page: 17 / 36

INSTALLATION
Document No. CS-BRTD101 Page 17 of 36
Revision 2
NOTE: Relays 3 & 4 are capable of switching a maximum dc current of
400mA.
C34
D03
D04
DO-3
DO-4
Figure 2.15 – Common Internal Connections of DO3 and DO4
2.4.3. PLC I
NTERFACE
As detailed in section 2.4.2 Digital Outputs, the hardwired PLC interface is via Digital
Outputs 3 & 4. Typical connection is as per Figure 2.16 – PLC Interface Wiring .
PLC
+ 24V (PLC Supply)
PLC Fa ult Input
PLC T rip Input
1 2
1
3
2
4
1
3
2
4
PWR
+24V
+24V
+24V
+24V
+24V
+24V
+24V
DO0
DO1
DO2
C34
DO3
DO4
DI0
DI1
DI2
DI3
COM
AI+
0V
DO0
DO1
DO2
DO3
DO4
DI0
DI1
M
O
D
E
S
Y
S
T
E
M
DI2
DI3
ETH
OK
STS
CONTROL U NIT
Figure 2.16 – PLC Interface Wiring
2.5. ETHERNET PORT
The Ethernet connector should be wired according to industry standards. Refer to the
additional information section in this document for further details.