Mitsubishi Electric 800 Series Instruction Manual (Function page 328

 Energy saving monitoring list
• The items in the energy saving effect monitoring (items which can be monitored when "50" is set in Pr.52, Pr.54, Pr.158,
Pr.774 to Pr.776, and Pr.992) are listed below.
(The items which can be monitored via terminal FM (Pr.54 setting) and via terminal AM (Pr.158 setting) are limited to [1
Power saving] and [3 Average power saving].)
Energy saving
monitor item
It is defined as the difference between the
estimated value of the required power during
commercial power supply operation and the
1 Power saving
input power calculated with the inverter.
[Power required for commercial power supply
operation] - [Input power]
It is defined as the power saving expressed as a
percentage. The rate of the power saving with
respect to the estimated input power for the
commercial power supply operation is
determined using the following formula.
2 Power saving rate
Power during commercial power supply operation
The rate of the power saving with respect to the
Pr.893 setting is determined using the following
formula.
It is defined as the average hourly energy saving
during a monitoring time (set in Pr.897).
3 Average power saving
∑ ([1 Power saving] × ∆t)
It is defined as the average hourly energy saving
expressed as a percentage. The rate of the
average hourly energy saving with respect to the
estimated input power for the commercial power
supply operation is determined using the
following formula.
Average power saving
∑ ([2 Power saving rate] × ∆t)
4
rate
The rate of the average hourly energy saving
with respect to the Pr.893 setting is determined
using the following formula.
[3 Average power saving]
It is defined as a monetary value of the average
Average power cost hourly energy saving, determined using the
5
savings following formula.
[3 Average power saving] × Pr.896 setting
Description and formula
[1 Power saving]
[1 Power saving]
× 100
Pr.893
Pr.897
× 100
Pr.897
× 100
Pr.893
Unit and
increment
Pr.895
0.01 kW 9999
0
×100
0.1%
1
0.01 kWh 9999
0
0.1%
1
0.01/0.1 —
13. (M) Item and Output Signal for Monitoring
Parameter setting
Pr.896 Pr.897 Pr.899
— 9999
—
9999
0 to 1000 h
0 to 500
13.5 Energy saving monitoring
11
12
13
14
15
16
17
18
19
20
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