Serial Start/Stop Initiation - GE Multilin 489 Instruction Manual

5.3.4

Serial Start/Stop Initiation

SERIAL
5–20
Courtesy of NationalSwitchgear.com
standard ABC, the system phase sequence setpoint may be used to accommodate this
rotation. This setpoint allows the 489 to properly calculate phase reversal and negative
sequence quantities.
PATH: SETPOINTS S2 SYSTEM SETUP
SERIAL START/STOP
[ ] INITIATION: Off
STARTUP INITIATION
MESSAGE
RELAYS (2-5): ----
SHUTDOWN INITIATION
MESSAGE
RELAYS (1-4): ----
SERIAL START/STOP
MESSAGE
EVENTS: Off
If enabled, this feature will allow the user to initiate a generator startup or shutdown via
the RS232/RS485 communication ports. Refer to GE publication number GEK-106495: 489
Communications Guide for command formats. When a startup command is issued, the
auxiliary relay(s) assigned for starting control will be activated for 1 second to initiate
startup. When a stop command is issued, the assigned relay(s) will be activated for 1
second to initiate a shutdown.
CHAPTER 5: SETPOINTS
SERIAL START/STOP
Range: On, Off
Range: Any Combination of Relays 2 to
5
Range: Any Combination of Relays 1 to
4
Range: On, Off
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL