Bulletin No. 3020IM9503R6/98 Power Meter
December 1998 Appendix I—Alarm Setup
1998 Square D All Rights Reserved 107
Scale Group Definitions
Scale Group A—Phase and Neutral Current
Amps Scale Factor
0–327.67 –2
0–3276.7 –1
0–32767 0 (default)
Scale Group D—Voltage, L-L, L-N
Amps Scale Factor
0–3276.7 –1
0–32767 0 (default)
0–327.67 1
0–3276.7 2
Scale Group E—Power kW, kVAr, kVA
Power Scale Factor
0–32.767 kW, kVAr, kVA –3
0–327.67 kW, kVAr, kVA –2
0–3276.7 kW, kVAr, kVA –1
0–32767 kW, kVAr, kVA 0 (default)
0–327.67 MW, MVAr, MVA 1
0–3276.7 MW, MVAr, MVA 2
0–32767 MW, MVAr, MVA 3
Scale Group F—Frequency
Hertz Scale Factor
45.00–66.00 –2
Alarm Type Definitions
Alarm Alarm Alarm
Type Description Operation
A Overvalue If the test register value exceeds the setpoint long enough
Alarm to satisfy the pickup delay period, the alarm condition will
be true. When the value in the test register falls below the
dropout setpoint long enough to satisfy the dropout delay
period, the alarm will drop out. Pickup and dropout
setpoints are positive. Delays are in seconds.
B Undervalue If the test register value is below the setpoint long enough
Alarm to satisfy the pickup delay period, the alarm condition will
be true. When the value in the test register rises above the
dropout setpoint long enough to satisfy the dropout delay
period, the alarm will drop out. Pickup and dropout
setpoints are positive. Delays are in seconds.
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