GE P743 - Page 281

Programmable Logic
P74x/EN PL/N
a7
MiCOM P74
1, P742, P743
(PL) 7-
47
PL
Opto-Input
Number
P74x Relay Text Function
15 Input Label 15 Manual CB close command
16 Input Label 16 Mode Overhaul
Peripheral Unit P743:
Opto-Input
Number
P74x Relay Text Function
1 Input Label 01 Reset Indication
2 Input Label 02 Reset Trip Latch
3 Input Label 03 Isolator 1 closed auxiliary contact (89a)
4 Input Label 04 Isolator 1 open auxiliary contact (89b)
5 Input Label 05 Isolator 2 closed auxiliary contact (89a)
6 Input Label 06 Isolator 2 open auxiliary contact (89b)
7 Input Label 07 Circuit Breaker closed auxiliary contact (52a)
8 Input Label 08 Circuit Breaker open auxiliary contact (52b)
9 Input Label 09 Isolator 3 closed auxiliary contact (89a)
10 Input Label 10 Isolator 3 open auxiliary contact (89b)
11 Input Label 11 Mode 50BF disabled
12 Input Label 12 Can be linked to External 3 phase trip initiation
13 Input Label 13 CB not available
14 Input Label 14 Can be linked to External circuit breaker failure
15 Input Label 15 Manual CB close command
16 Input Label 16 Mode Overhaul
17 Input Label 17
Can be linke
d to External single phase A trip
initiation
18 Input Label 18
Can be linked to External single phase B trip
initiation
19 Input Label 19
Can be linked to External single phase C trip
initiation
20 Input Label 20 Not Mapped
21 Input Label 21 Not Mapped
22 Input Label 22 Not Mapped
23 Input Label 23 Not Mapped
24 Input Label 24 Not Mapped