Current Demand; Max. Demand Value; Demand Alarm Output; Behavior During Power Failure And Recovery - Panasonic KW2M-A User Manual

6.4.2 Current Demand

Current demand calculates the demand based on a thermal demand meter.
Current demand =
(Average of current – last current demand value) x 90% (fixed) + Last current demand value
If a stable current flows for the interval time, 90% of current value is displayed.
(%)
90
interval

6.4.3 Max. demand value

The device measures and logs the following maximum demand values: active, reactive, apparent, active
(export), reactive (export), current.

6.4.4 Demand alarm output

・Output with the pulse output terminal (open collector).
・Output only when the output type is set to [alarm].
・No alarm is output if the power demand alarm threshold is set to '0.000'kW.

6.4.5 Behavior during power failure and recovery

<When a power failure occurs>
・The device stops the demand measurement.
・The device logs the values for max. demand and monthly max. demand in the internal memory.
<When the device recovers from a power failure>
・The device stops the demand measuring until the next interval. As soon as the next interval has
started, the device starts measuring the demand.
KW2M-A/X User's Manual
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Miscellaneous functions
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