User's Manual

62 Meter Operation
The measured electrical values are:
 Active power (kW), summation: forward, reverse
 Active energy (kWh), summation: forward, reverse, forward + reverse,
forward – reverse. Forward – reverse is limited to zero at the bottom of the
range, negative values are not accumulated.
 Reactive power (kvar), summation: import, export
 Reactive energy (kvarh), summation: import, export
 RMS voltage, per phase
 RMS current, per phase
 Power factor, per phase
 Frequency
 Sine of phase angle, per phase
 Apparent power (VA), summation
 Maximum active power: forward, reverse
 Maximum reactive power per quadrant
 Maximum, continuous, and cumulative demand values
 Previous demand values
 Minimum and maximum per-phase voltages
Energy Register Capacity
The energy registers contain the present metering values of summation and
instantaneous items, previous season data, and self-read data. The capacity of the
energy registers is 999,999,999 Wh/varh (9 digits).
The Energy Register Capacity setting also affects the capacity of the number of
power-off minutes, the number of power outages recorded, and the number of alarms
occurrences in the error counter. When the capacity is reached by any of these
values (including Wh/varh), the value rolls back over to zero.
Note: The meter display shows 8 digits. When you set the energy register capacity to
9 digits, the highest number may not be shown on the display (depending on
display configuration).
Error Occurrence Recording
Certain errors can be recorded and are accumulated in a meter register. The count is
incremented by one for every error occurrence. The errors are:
 RAM Failure
 Non-Volatile Memory Failure
 Clock Error
 Measurement Error
 Save-All Aborted
See “Diagnostic Event Descriptions” on page 1 for details of these errors.