Rockwell Automation 865 Differential Protection Relay User Manual
Page 164
9-4 Connections
865-UM001A-EN-P – July 2009
Terminal X3
No: Symbol
Description
1
+48V
Internal wetting voltage for digital inputs 1 – 6
2
DI1
Digital input 1
3
DI2
Digital input 2
4
DI3
Digital input 3
5
DI4
Digital input 4
6
DI5
Digital input 5
7
DI6
Digital input 6
8 --
--
9
A1 COM
Alarm relay 1, common connector
10
A1 NO
Alarm relay 1, normal open connector
11
A1 NC
Alarm relay 1, normal closed connector
12
T2
Trip relay 2
13
T2
Trip relay 2
14
T1
Trip relay 1
15
T1
Trip relay 1
16 --
--
17 Uaux
Auxiliary
voltage
18 Uaux
Auxiliary
voltage
Terminal X6 with optional Arc Protection
No: Symbol Description
1
BI
External arc light input
2 BO
Arc
output
3
COM
Common for BI and BO
4
S1>+
Arc sensor 1, positive connector
5
S1>
Arc sensor 1, negative connector
6
S2>+
Arc sensor 2, positive connector
7
S2>
Arc sensor 2, negative connector
Arc sensor itself is polarity free
Terminal X6 with DI19/DI20 option
No: Symbol Description
1
DI19
Digital input 19
2
DI19
Digital input 19
3
DI20
Digital input 20
4
DI20
Digital input 20
5 --
--
6
S1>+
Arc sensor 1, positive connector
7
S1>
Arc sensor 1, negative connector
Arc sensor itself is polarity free
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