Alarm Status - GE Multilin 489 Instruction Manual

NOTE
6.2.4

Alarm Status

ALARM STATUS
6–6
Courtesy of NationalSwitchgear.com
AMBIENT RTD
MESSAGE
RTD#12: 0°C PreTrip
ANALOG INPUT 1
MESSAGE
PreTrip: 0 Units
ANALOG INPUT 2
MESSAGE
PreTrip: 0 Units
ANALOG INPUT 3
MESSAGE
PreTrip: 0 Units
ANALOG INPUT 4
MESSAGE
PreTrip: 0 Units
Vab/Iab PreTrip:
MESSAGE
0.0 Ωsec.
The range for the
CAUSE OF LAST TRIP
Sequential Trip, Field-Bkr Discrep., Tachometer, Thermal Model, Offline Overcurrent, Phase
Overcurrent, Neg. Seq. Overcurrent, Ground Overcurrent, Phase Differential, RTDs 1 to 12,
Overvoltage, Undervoltage, Volts/Hertz, Phase Reversal, Underfrequency, Overfrequency,
Neutral O/V, Neutral U/V (3rd), Reactive Power, Reverse Power, Low Forward Power,
Inadvertent Energ., and Analog Inputs 1 to 4.
Immediately prior to issuing a trip, the 489 takes a snapshot of generator parameters and
stores them as pre-trip values; this allows for troubleshooting after the trip occurs. The
cause of last trip message is updated with the current trip and the screen defaults to that
message. All trip features are automatically logged as date and time stamped events as
they occur. This information can be cleared using the
setpoint. If the cause of last trip is "No Trip To Date", the subsequent
CLEAR LAST TRIP DATA
pretrip messages will not appear. Last Trip Data will not update if a digital input
programmed as Test Input is shorted.
PATH: ACTUAL VALUES A1 STATUS
[ ] NO ALARMS
Input A ALARM
MESSAGE
STATUS: Active
Input B ALARM
MESSAGE
STATUS: Active
Input C ALARM
MESSAGE
STATUS: Active
Input D ALARM
MESSAGE
STATUS: Active
Input E ALARM
MESSAGE
STATUS: Active
CHAPTER 6: ACTUAL VALUES
Range: –50 to 250°C. Seen only if at
least one RTD is Ambient
Range: –50000 to 50000. Not seen if
ANALOG INPUT 1
Range: –50000 to 50000. Not seen if
ANALOG INPUT 2
Range: –50000 to 50000. Not seen if
ANALOG INPUT 3
Range: –50000 to 50000. Not seen if
ANALOG INPUT 4
Range: 0 to 65535 Ωsec.; 0 to 359°.
Seen only if Loss of Excitation is
0°
enabled
setpoint is: No Trip to Date, General Inputs A to G,
S1 489 SETUP
ALARM STATUS
Range: N/A. Message seen when no
alarms are active
Range: Active, Latched. See Note
below.
Range: Active, Latched. See Note
below.
Range: Active, Latched. See Note
below.
Range: Active, Latched. See Note
below.
Range: Active, Latched. See Note
below.
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
is "Disabled"
is "Disabled"
is "Disabled"
is "Disabled"
CLEAR DATA