Mitsubishi Electric FR-F720P-0.75K to 110K Instruction Manual page 189

Energy saving operation and energy saving monitor
(1) Energy saving monitor list
⋅ The following items are monitored by the power saving monitor (Pr. 52, Pr. 54, Pr. 158 = "50").
(Only 1) Power saving and 3) Power saving average value can be output to Pr. 54 (terminal FM) and Pr. 158
(terminal AM))
Energy Saving
Monitor Item
1)
Power saving
2)
Power saving rate
Power saving average
3)
value
Power saving rate
4)
average value
Average power cost
5)
savings
⋅ The following shows the items which can be monitored by the cumulative saving power monitor (Pr. 52 = "51").
(The monitor value of the cumulative monitor can be shifted to the right with Pr. 891 Cumulative power monitor digit
shifted times.)
Energy Saving
Monitor Item
Power saving is added up per hour.
Power saving
6)
amount Σ ( 1) Power saving × Δt)
Power saving amount represented in terms of cost
Power cost
7)
6) Power saving amount × Pr. 896
savings
Estimated value of annual power saving amount
Annual power
8)
saving amount
Operation time during accumulation
Annual power saving amount represented in terms of
Annual power
9)
cost
cost savings
8) Annual power saving amount × Pr. 896
*1 For communication (RS-485 communication, communication option), the display increments are 1. For example, 10.00kWh indicates that
communication data is 10.
*2 When using the parameter unit (FR-PU04/FR-PU07), "kW" is displayed.
*3 The setting depends on capacities. (55K or lower/75K or higher)
REMARKS
⋅ Since four digits are displayed on the operation panel (FR-DU07), the value is displayed in 0.1 increments when a monitor
value in 0.01 increments exceeds 99.99, then rounded up to 100.0. The maximum display is "9999".
⋅ As the operation panel (FR-PU04/FR-PU07) is 5-digit display, it displays in 0.1 increments since a carry occurs, e.g.
"1000.0", when a monitor value in 0.01 increments exceeds "999.99". The maximum display is "99999".
⋅ The upper limit of communication (RS-485 communication, communication option) is "65535" when Pr. 898 Power saving cumulative
monitor clear = "9999". The upper limit of 0.01 increments monitor is "655.35" and that of 0.1 increments monitor is "6553.5".
178
Description and Formula
Difference between the estimated value of power
necessary for commercial power supply operation
and the input power calculated by the inverter
Power during commercial power supply
operation − input power monitor
Ratio of power saving on the assumption that power
during commercial power supply operation is 100%
1) Power saving
Power during commercial
power supply operation
Ratio of power saving on the assumption that Pr.
893 is 100%
1) Power saving
× 100
Pr. 893
Average value of power saving amount per hour
during predetermined time (Pr. 897)
Σ ( 1) Power saving × Δt)
Pr. 897
Ratio of power saving average value on the
assumption that the value during commercial
power supply operation is 100%
Σ ( 2) Power saving rate × Δt)
Pr. 897
Ratio of power saving average value on the
assumption that Pr. 893 is 100%
3) Power saving average value
Pr. 893
Power saving average value represented in terms
of cost
3) Power saving average value × Pr. 896
Description and Formula
6) Power saving amount
of power saving amount
Unit
0.01kW/
0.1kW
× 100
0.1%
0.01kWh
/0.1kWh
*3
× 100
0.1%
× 100
0.01/0.1
*3
Unit
0.01kWh
/0.1kWh
*1*2*3
0.01/0.1
*1*3
0.01kWh
Pr. 899
× 24 × 365 ×
/0.1kWh
100
*1*2*3
0.01/0.1
*1*3
Parameter Setting
Pr. 895 Pr. 896 Pr. 897 Pr. 899
9999
*3
0 ⎯
9999
1
9999
0 9999
0 to
1000h
1
0 to
⎯
500
Parameter Setting
Pr. 895 Pr. 896 Pr. 897 Pr. 899
⎯
9999
0 to
⎯
500
⎯
⎯
9999
0 to
⎯
500
⎯
9999
0 to
100%