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Energy saving operation and energy saving monitor
4
PARAMETERS
(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 CA) and Pr. 158
(terminal AM))
⋅ 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
Description and Formula Unit
Parameter Setting
Pr. 895 Pr. 896 Pr. 897 Pr. 899
1)
Power saving
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
0.01kW/
0.1kW
*3
9999
⎯ 9999
⎯
2)
Power saving rate
Ratio of power saving on the assumption that power
during commercial power supply operation is 100%
× 100
0.1%
0
Ratio of power saving on the assumption that Pr.
893 is 100%
× 100
1
3)
Power saving average
value
Average value of power saving amount per hour
during predetermined time (Pr. 897)
0.01kWh
/0.1kWh
*3
9999
9999
0 to
1000h
4)
Power saving rate
average value
Ratio of power saving average value on the
assumption that the value during commercial
power supply operation is 100%
× 100
0.1%
0
Ratio of power saving average value on the
assumption that Pr. 893 is 100%
× 100
1
5)
Power saving amount
average value
Power saving average value represented in terms
of charge
3) Power saving average value × Pr. 896
0.01/0.1
*3
⎯
0 to
500
Energy Saving
Monitor Item
Description and Formula Unit
Parameter Setting
Pr. 895 Pr. 896 Pr. 897 Pr. 899
6)
Power saving
amount
Power saving is added up per hour.
Σ ( 1) Power saving × Δt)
0.01kWh
/0.1kWh
*1*2*3
⎯ 9999
⎯
9999
7)
Power saving
amount charge
Power saving amount represented in terms of charge
6) Power saving amount × Pr. 896
0.01/0.1
*1*3
⎯
0 to
500
8)
Annual power
saving amount
Estimated value of annual power saving amount
×
24
×
365
×
0.01kWh
/0.1kWh
*1*2*3
⎯ 9999
0 to
100%
9)
Annual power
saving amount
charge
Annual power saving amount represented in terms of
charge
8) Annual power saving amount × Pr. 896
0.01/0.1
*1*3
⎯
0 to
500
*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. (FR-F720-02330 (FR-F740-01160) or less/FR-F720-03160 (FR-F740-01800) or more)
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".
Power during commercial
power supply operation
1) Power saving
1) Power saving
Pr. 893
Σ ( 1) Power saving × Δt)
Pr. 897
Σ ( 2) Power saving rate × Δt)
Pr. 897
3) Power saving average value
Pr. 893
6) Power saving amount
Operation time during accumulation
of power saving amount
Pr. 899
100