GE Power Management
489 Generator Management Relay 5-1
5 ACTUAL VALUES 5.1 OVERVIEW
5
5 ACTUAL VALUES 5.1 OVERVIEW 5.1.1 ACTUAL VALUES MESSAGES
Measured values, maintenance and fault analysis information are accessed in the Actual Value mode. Actual values may
be accessed via one of the following methods:
1. Front panel, using the keys and display.
2. Front program port, and a portable computer running the 489PC software supplied with the relay.
3. Rear terminal RS485 port, and a PLC/SCADA system running user-written software.
Any of these methods can be used to view the same information. However, a computer makes viewing much more conve-
nient since many variables may be viewed simultaneously.
Actual value messages are organized into logical groups, or pages, for easy reference, as shown below. All actual value
messages are illustrated and described in blocks throughout this chapter. All values shown in these message illustrations
assume that no inputs (besides control power) are connected to the 489.
In addition to the actual value messages, there are also diagnostic and flash messages that appear only when certain con-
ditions occur. They are described later in this chapter.
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A1 ACTUAL VALUES
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STATUS
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A2 ACTUAL VALUES
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METERING DATA
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A3 ACTUAL VALUES
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LEARNED DATA
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GENERATOR STATUS
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CURRENT METERING
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PARAMETER AVERAGES
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LAST TRIP DATA
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TEMPERATURE
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RTD MAXIMUMS
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ALARM STATUS
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POWER METERING
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ANALOG IN MIN/MAX
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TRIP PICKUPS
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TEMPERATURE
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ALARM PICKUPS
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DEMAND METERING
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DIGITAL INPUTS
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ANALOG INPUTS
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REAL TIME CLOCK
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SPEED
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A4 ACTUAL VALUES
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MAINTENANCE
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A5 ACTUAL VALUES
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EVENT RECORD
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A6 ACTUAL VALUES
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PRODUCT INFO.
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TRIP COUNTERS
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[ENTER] EVENT 01
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489 MODEL INFO.
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GENERAL COUNTERS
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[ENTER] EVENT 02
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CALIBRATION INFO.
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TIMERS
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[ENTER] EVENT 03
↓
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[ENTER] EVENT 40
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