CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–23
Figure 2-26: Wet and Dry Contact Input Wiring Examples
Output Relays
The locations of the output relays have a fixed assignment for the platform called the
master identifier. I/O options that include inputs occupy the fixed assigned output
locations so in these cases the relay assignment maps to the master identifier.
The critical failure output relay is reserved as Relay_8 and it is omitted and is not
programmable.
Table 2-6: Slots F,G,H Terminal Master Identifier (left) and I/O options A,A,N (right)
INPUT
SIGNAL
SWITCH
(DRY)
INPUT
SIGNAL
SWITCH
(WET)
EXTERNAL
DC POWER
SUPPLY
Slots F,G,H Terminal Master Identifier Slots F,G,H with I/O options A,A,N
Terminal # SLOT F SLOT G SLOT H Terminal # SLOT F SLOT G
1 RELAY_1 RELAY_9 RELAY_17 1 RELAY_1 RELAY_9
2 RELAY_1 RELAY_9 RELAY_17 2 RELAY_1 RELAY_9
3 RELAY_1 RELAY_9 RELAY_17 3 RELAY_1 RELAY_9
4 RELAY_2 RELAY_10 RELAY_18 4 RELAY_2 RELAY_10
5 RELAY_2 RELAY_10 RELAY_18 5 RELAY_2 RELAY_10
6 RELAY_2 RELAY_10 RELAY_18 6 RELAY_2 RELAY_10
7 RELAY_3 RELAY_11 RELAY_19 7 RELAY_3 RELAY_11
8 RELAY_3 RELAY_11 RELAY_19 8 RELAY_3 RELAY_11
9 RELAY_3 RELAY_11 RELAY_19 9 RELAY_3 RELAY_11
10 RELAY_4 RELAY_12 RELAY_20 10 RELAY_4 RELAY_12
11 RELAY_4 RELAY_12 RELAY_20 11 RELAY_4 RELAY_12
12 RELAY_4 RELAY_12 RELAY_20 12 RELAY_4 RELAY_12