Ge 489 User Manual Page 65

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GE Multilin 489 Generator Management Relay 4-15
4 SETPOINTS 4.4 S3 DIGITAL INPUTS
4
4.4.3 GENERAL INPUT A TO G
PATH: SETPOINTS ÖØ S3 DIGITAL INPUTS ÖØ GENERAL INPUT A(G)
The seven General Input functions are flexible enough to meet most of the desired digital input requirements. The asserted
state and the name of the digital inputs are programmable. To disable the input functions when the generator is offline, until
some time after the generator is brought online, a block time should be set. The input functions will be enabled once the
block delay has expired. A value of zero for the block time indicates that the input functions are always enabled.
Inputs may be configured for control, alarm, or trip. If the control feature is enabled, the assigned output relay(s) operate
when the input is asserted. If the
PULSED CONTROL RELAY DWELL TIME is set to 0, the output relay(s) operate only while the
input is asserted. However, if a dwell time is assigned, the output relay(s) operate as soon as the input is asserted for a
period of time specified by the setpoint. If an alarm or trip is enabled and the input is asserted, an alarm or trip will occur
after the specified delay.
GENERAL INPUT A
[ENTER] for more
ASSIGN DIGITAL
INPUT: None
Range: None, Input 1 to Input 7. If an input is assigned to
the Tachometer function, it may not be used here
ASSERTED DIGITAL
INPUT STATE: Closed
Range: Closed, Open
INPUT NAME:
Input A
Range: 12 alphanumeric characters
BLOCK INPUT
FROM ONLINE: 0 s
Range: 0 to 5000 in steps of 1. "0" indicates feature is
active while generator is offline as well as online.
GENERAL INPUT A
CONTROL: Off
Range: Off, On
PULSED CONTROL RELAY
DWELL TIME: 0.0 s
Range: 0.0 to 25.0 s in steps of 0.1
ASSIGN CONTROL
RELAYS (1-5): -----
Range: Any combination of Relays 1 to 5
GENERAL INPUT A
CONTROL EVENTS: Off
Range: Off, On
GENERAL INPUT A
ALARM: Off
Range: Off, Latched, Unlatched
ASSIGN ALARM
RELAYS (2-5): ---5
Range: Any combination of Relays 2 to 5
GENERAL INPUT A
ALARM DELAY: 0.5 s
Range: 0.1 to 5000.0 s in steps of 0.1
GENERAL INPUT A
ALARM EVENTS: Off
Range: Off, On
GENERAL INPUT A
TRIP: Off
Range: Off, Latched, Unlatched
ASSIGN TRIP
RELAYS (1-4): 1---
Range: Any combination of Relays 1 to 4
GENERAL INPUT A
TRIP DELAY: 5.0 s
Range: 0.1 to 5000.0 in steps of 0.1
ENTER
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