GE 489 - Manual (Page 61)

GE Multilin 489 Generator Management Relay 4-11
4 SETPOINTS 4.2 S1 489 SETUP
4
4.2.7 CLEAR DATA
PATH: SETPOINTS Ö S1 489 SETUP ÖØ CLEAR DATA
These commands may be used to clear various historical data.
• CLEAR LAST TRIP DATA: The Last Trip Data may be cleared by executing this command.
• CLEAR MWh and Mvarh METERS: Executing this command will clear the MWh and Mvarh metering to zero.
• CLEAR PEAK DEMAND DATA: Execute this command to clear peak demand values.
• CLEAR RTD MAXIMUMS: All maximum RTD temperature measurements are stored and updated each time a new
maximum temperature is established. Execute this command to clear the maximum values.
• CLEAR ANALOG I/P MIN/MAX: The minimum and maximum analog input values are stored for each Analog Input.
Those minimum and maximum values may be cleared at any time.
• CLEAR TRIP COUNTERS: There are counters for each possible type of trip. Those counters may be cleared by exe-
cuting this command.
• CLEAR EVENT RECORD: The event recorder saves the last 40 events, automatically overwriting the oldest event. If
desired, all events can be cleared using this command to prevent confusion with old information.
• CLEAR GENERATOR INFORMATION: The number of thermal resets and the total generator running hours can be
viewed in actual values. On a new installation, or if new equipment is installed, this information is cleared through this
setpoint.
• CLEAR BREAKER INFORMATION: The total number of breaker operations can be viewed in actual values. On a new
installation or if maintenance work is done on the breaker, this accumulator can be cleared with this setpoint.
„ CLEAR DATA
„ [ENTER] for more
CLEAR LAST TRIP
DATA: No
Range: No, Yes
RESET MWh and Mvarh
METERS: No
Range: No, Yes
CLEAR PEAK DEMAND
DATA: No
Range: No, Yes
CLEAR RTD
MAXIMUMS: No
Range: No, Yes
CLEAR ANALOG I/P
MIN/MAX: No
Range: No, Yes
CLEAR TRIP
COUNTERS: No
Range: No, Yes
CLEAR EVENT
RECORD: No
Range: No, Yes
CLEAR GENERATOR
INFORMATION: No
Range: No, Yes
CLEAR BREAKER
INFORMATION: No
Range: No, Yes
ENTER
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