Table of Contents
Advertisement
4 FRONT PANEL OPERATION
4 FRONT PANEL OPERATION 4.1 FRONT PANEL
The front panel provides a local operator interface with a vacuum fluorescent display, LED status indicators,
control keys, and program port. The display and status indicators update alarm and status information auto-
matically. The control keys are used to select the appropriate message for entering setpoints or displaying
measured values. The RS232 program port is also provided for connection with a computer running the 745PC
software.
STATUS INDICATORS AND
LOCAL CONTROL KEYS
745 STATUS
IN SERVICE
SELF-TEST
ERROR
TEST MODE
DIFFERENTIAL
BLOCKED
LOCAL
RESET
MESSAGE
NEXT
PROGRAM PORT
g
745
Transformer Management Relay ™
PROGRAM PORT INTERFACE
TO LOCAL COMPUTER
GE Power Management
DISPLAY
SYSTEM STATUS
CONDITIONS
TRANSFORMER
TRIP
DE-ENERGIZED
TRANSFORMER
ALARM
OVERLOAD
LOAD-LIMIT
PICKUP
REDUCED
SETPOINT GROUP 1
PHASE A
SETPOINT GROUP 2
PHASE B
SETPOINT GROUP 3
PHASE C
SETPOINT GROUP 4
GROUND
7
8
SETPOINT
MESSAGE
4
5
ACTUAL
1
2
ESCAPE
VALUE
.
0
ENTER
Figure 4–1: 745 FRONT PANEL
745 Transformer Management Relay
9
6
3
HELP
FrontPanel.CDR
HANDLE TO WITHDRAW RELAY
4.1 FRONT PANEL
4.1.1 DESCRIPTION
SETPOINT ENTRY
AND MONITOR KEYS
4-1
4
Advertisement
Table of Contents
