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PowerLogic™ PM5500 series user manual Chapter 10—Alarms
HRB1684301-01 89
NOTE: Some alarms do not apply to all power system configurations. For example,
line-to-neutral voltage alarms cannot be enabled on 3-phase delta systems.
Setpoint conditions
A setpoint condition occurs when the magnitude of the signal being monitored crosses
the limit specified by the pickup setpoint setting and stays within that limit for a minimum
time period specified by the pickup time delay setting.
The setpoint condition ends when the magnitude of the signal being monitored crosses
the limit specified by dropout setpoint setting and stays within that limit for a minimum
time period specified by dropout time delay setting.
The meter supports these types of setpoint conditions:
Over setpoint
When the value rises above the pickup setpoint setting and remains there long enough
to satisfy the pickup time delay period (∆T1), the alarm condition is set to ON. When the
value falls below the dropout setpoint setting and remains there long enough to satisfy
the dropout time delay period (∆T2), the alarm condition is set to OFF.
Over Ground Current Over Current, Gnd 0.000 to 99999.000 0 to 99999 A
Over Voltage L-L Over Voltage, L-L 0.00 to 999999.00 0 to 999999 V
Under Voltage L-L Under Voltage, L-L 0.00 to 999999.00 0 to 9999999 V
Over Voltage L-N Over Voltage, L-N 0.00 to 999999.00 0 to 9999999 V
Under Voltage L-N Under Voltage L-N 0.00 to 999999.00 0 to 9999999 V
Over Active Power Over kW 0.0 to 9999999.0 0 to 9999999 kW
Over Reactive Power Over kVAR 0.0 to 9999999.0 0 to 9999999 kVAR
Over Apparent Power Over kVA 0.0 to 9999999.0 0 to 9999999 kVA
Leading True PF Lead PF, True -1.00 to -0.01 and 0.01 to 1.00 —
Lagging True PF Lag PF, True -1.00 to -0.01 and 0.01 to 1.00 —
Leading Disp PF Lead PF, Disp -1.00 to -0.01 and 0.01 to 1.00 —
Lagging Disp PF Lag PF, Disp -1.00 to -0.01 and 0.01 to 1.00 —
Over Present Active Power Demand Over kW Dmd, Pres 0.0 to 9999999.0 0 to 9999999 kW
Over Last Active Power Demand Over kW Dmd, Last 0.0 to 9999999.0 0 to 9999999 kW
Over Predicted Active Power Demand Over kW Dmd, Pred 0.0 to 9999999.0 0 to 9999999 kW
Over Present Reactive Power Demand Over kVAR Dmd,Pres 0.0 to 9999999.0 0 to 9999999 kVAR
Over Last Reactive Power Demand Over kVAR Dmd,Last 0.0 to 9999999.0 0 to 9999999 kVAR
Over Predicted Reactive Power Demand Over kVAR Dmd,Pred 0.0 to 9999999.0 0 to 9999999 kVAR
Over Present Apparent Power Demand Over kVA Dmd, Pres 0.0 to 9999999.0 0 to 9999999 kVA
Over Last Apparent Power Demand Over kVA Dmd, Last 0.0 to 9999999.0 0 to 9999999 kVA
Over Predicted Apparent Power Demand Over kVA Dmd, Pred 0.0 to 9999999.0 0 to 9999999 kVA
Over Frequency Over Frequency 0.000 to 99.000 Hz
Under Frequency Under Frequency 0.000 to 99.000 Hz
Over Voltage Unbalance Over Voltage Unbal 0.000 to 999999.000 0 to 9999999 V
Over Voltage THD Over Voltage THD 0.000 to 99 %
Phase Loss Phase Loss 0.00 too 999999.00 0 to 999999 —
1
Some alarms use the system type and the VT or CT ratio to determine the maximum allowed setpoint. See “Maximum allowable setpoint” on page 91.
Standard (1-Sec) alarms (Continued)
Alarm label Valid range and resolution
1
Units
ION Setup Meter display ION Setup Meter display