Allen-Bradley 857 Quick Start Manual page 19

Table 8 - Terminal X8 Model 857-3C8
No:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Table 9 - Terminal X6
Available only when arc flash option is selected.
No:
1
2
3
4
5
6
7
(1) Arc sensor itself is polarity free.
Rockwell Automation Publication 857-QS001B-EN-P - April 2017
Mounting and Wiring Instructions
Symbol Description
DI21 Trip relay 14
DI22 Trip relay 14
COM1 Trip relay 13
DI23 Trip relay 13
DI24 Trip relay 12
COM2 Trip relay 12
DI25 Trip relay 11
DI26 Trip relay 11
COM3 Trip relay 10
DI27 Trip relay 10
DI28 Trip relay 9
COM4 Trip relay 9
T8 Trip relay 8 / Digital input 32
T8 Trip relay 8 / Digital input 32
T7 Trip relay 7 / Digital input 31
T7 Trip relay 7 / Digital input 31
T6 Trip relay 6 / Digital input 30
T6 Trip relay 6 / Digital input 30
T5 Trip relay 5 / Digital input 29
T5 Trip relay 5 / Digital input 29
Symbol Description
BI External arc light input
BO Arc light output
COM Common connector of arc light I/O
S1>+ Arc sensor 1, positive connector
S1>– Arc sensor 1, negative connector
S2>+ Arc sensor 2, positive connector
S2>– Arc sensor 2, negative connector
Chapter 2
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(1)
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