Mitsubishi Electric 800 Series Instruction Manual page 295

 Cumulative energy saving monitors ([6 Power saving amount], [7 Power
cost saving], [8 Annual power saving amount], [9 Annual power saving
savings]).
• On the cumulative energy saving cumulative monitors, the monitor data digit can be shifted to the right by the number of
Pr.891 Cumulative power monitor digit shifted times. For example, if the cumulative power value is 1278.56 kWh when
Pr.891 = "2", the PU/DU display is 12.78 (display in 100 kWh increments) and the communication data is 12. If the
maximum value is exceeded when Pr.891 = "0 to 4", the value is clamped at the maximum value, indicating that a digit
shift is necessary. If the maximum value is exceeded when Pr.891 = "9999", the value returns to 0, and the counting starts
again. In other monitors, the value is clamped at the displayed maximum value.
• The [6 Cumulative power saving amount] monitor (6)] can measure the power during a predetermined period. Measure
with the following procedure.
1.
Write "9999" or "10" in Pr.898 Power saving cumulative monitor clear.
2.
Write "0" in Pr.898 at the measurement start time to clear the power saving cumulative monitor value and start
power saving accumulation.
3.
Write "1" in Pr.898 at the measurement end time to hold the power saving cumulative monitor value.
Power saving
instantaneous
value [kW]
Power saving
amount [kWh]
NOTE
• The power saving cumulative monitor value is saved every hour. This means that if the power is turned OFF after less than
an hour, when then the power is turned ON again, the previously saved monitor value is displayed, and accumulation
starts. (In some cases, the cumulative monitor value may go down.)
294
5. PARAMETERS
5.8 (M) Monitor display and monitor output signal
Running
0
Accumulation
0
Accumulation start
(Pr.898=0)
Running
During stop
Power is off
Pause
(Pr.898=1)
Resume accumulation
(Pr.898=10 or 9999)
Time
Time
Clear (Pr.898=0)