Mitsubishi Electric 800 Series Instruction Manual page 368

Power saving real-time monitor ([1 Power saving] and [2 Power saving
rate])
• On the [1 Power saving monitor], an energy saving effect as compared to the consumed power during commercial power
supply operation (estimated value) is calculated and displays on the main monitor.
• In the following cases, the [1 Power saving monitor] indicates "0".
- Calculated values of the power saving monitor are negative values.
- During DC injection brake operation.
- The motor is not connected (output current monitor is 0A).
• On the [2 Power saving rate monitor], the power saving rate considering the consumed power during the power supply
operation (estimated value) as 100% is displayed. Pr.895 Power saving rate reference value needs to be set to "0".
Energy saving monitor reference (motor capacity)
Average power saving monitor ([3 Average power saving], [4 Average
power saving rate], [5 Average power cost savings])
• The average power saving monitors are displayed by setting a value other than 9999 in Pr.897 Power saving monitor
average time.
• On the [3 Average power saving monitor], average power saving amount for each average time period s displayed.
• When Pr.897 is set, the average value is updated each time the average time period elapses, with the power-ON or inverter
reset as the starting point.
The power savings average value update timing signal (Y92) is inverted every time the average value is updated.
When Pr.897=4 [Hr]
Pr.897
Power saving
instantaneous
value [kW]
0
Operation start
Average power
0 in the first
saving [kW]
measurement
Y92
0
• When Pr.895 Power saving rate reference value the [2 Average power saving rate] for the averaging time period is
displayed on the [4 Average power saving rate] monitor.
• When the power cost per 1 kWh power amount is set in Pr.896 Power unit cost, the cost of the saved power ([3
Average power saving]  Pr.896) is displayed on the [5 Average power cost savings].
During stop
4 8
Average Average
4 8
(M) Monitor display and monitor output signal
Power
is off
12
16
Average
Average
12 16
Time
20
Last value
Time
Stores Hi/Low when the
power is off and starts.
0 4
367
PARAMETERS
5
GROUP
M