GE P743 - Page 40

P74x/EN GS/Na7
Getting Started
(GS) 3
-
8
MiCOM P741, P742, P743
GS
Peripheral Unit P743:
LED
Number
LED Input Connection/Text Latched P74x LED Function Indication
1
LED1 Red
LED1 Yellow
LED1 Green
No
Isolator 1 Closed
Isolator 1 Status Alarm
Isolator 1 Open
2
LED2 Red
LED2 Yellow
LED2 Green
No
Isolator 2 Closed
Isolator 2 Status Alarm
Isolator 2 Open
3
LED3 Red
LED3 Yellow
LED3 Green
No
Isolator 3 Closed
Isolator 3 Status Alarm
Isolator 3 Open
4
LED4 Red
LED4 Yellow
LED4 Green
Yes
Trip on CU 50BF backtrip order
Not used
Not used
5
LED5 Red
LED5 Yellow
LED5 Green
Yes
Trip on CU 87BB trip order
Not used
Not used
6
LED6 Red
LED6 Yellow
LED6 Green
Yes
Dead Zone fault
Not used
Not used
7
LED7 Red
LED7 Yellow
LED7 Green
No
Circuit Breaker out of service
Not used
Circuit Breaker healthy
8
LED8 Red
LED8 Yellow
LED8 Green
No
Fiber communication Error
Fiber communication to change
Fiber communication healthy
9
FnKey LED1 Red
FnKey LED1 Yellow
FnKey LED1 Green
No
Not used
Not used
Reset PU Indications
10
FnKey LED2 Red
FnKey LED2 Yellow
FnKey LED2 Green
No
Not used
Not used
Reset PU Trip Latch
11
FnKey LED3 Red
FnKey LED3 Yellow
FnKey LED3 Green
No Not used
12
FnKey LED4 Red
FnKey LED4 Yellow
FnKey LED4 Green
No
Not used
Mode 50BF disabled
Mode normal
13
FnKey LED5 Red
FnKey LED5 Yellow
FnKey LED5 Green
No
Mode overhaul
Not used
Mode normal