Mitsubishi Electric FR-F700PJ Series, Инструкция по эксплуатации

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Energy saving operation and energy saving monitor
(6) Annual power saving amount, power cost (Pr. 899)
 By setting the operation time rate [%] (ratio of time when the motor is actually driven by the inverter during a year) in Pr.
899 , the annual energy saving effect can be predicted.
 When the operation pattern is predetermined to some degree, the estimated value of the annual power saving amount
can be found by measurement of the power saving amount during a given measurement period.
 Refer to the following and set the operation time rate.
1)Predict the average time [h/day] of operation in a day.
2)Find the annual operation days [days/year]. (Monthly average operation days

12 months)
3)Calculate the annual operation time [h/year] from 1) and 2).
4)Calculate the operation time rate and set it to
Pr. 899
.
 Calculate the annual power saving amount from Pr. 899 Operation time rate (estimated value) and average power saving
monitor
 The annual power cost savings can be monitored by setting the power cost per hour in
Pr. 896 Power unit cost
.
Calculate the annual power cost savings in the following method.
Annual operation time (h/year) = Average time (h/day)

Operation days (days/year)
Operation time rate (%) =  100(%)
REMARKS
 Operation time rate setting example: When operation is performed for about 21 hours per day and the monthly average
operation days are 16 days
Annual operation time = 21 (h/day)

16 (days/month)

12 months = 4032 (h/year)
Operation time rate (%) =

100(%) = 46.03%
Set 46.03% to Pr. 899 .
Annual power saving amount (kWh/year) =  24h  365 days 
Annual power cost savings = Annual power saving amount (kWh/year)

Pr. 896
REMARKS
In the regeneration mode, make calculation on the assumption that "power saving = power during commercial power supply
operation (input power = 0)".
Parameters referred to
Pr. 3 Base frequency Refer to page 103
Pr. 52 DU/PU main display data selection Refer to page 152
Pr. 54 FM terminal function selection Refer to page 152
Annual operation time (h/year)
24 (h/day) x 365 (days/year)
4032 (h/year)
24 (h/day)

365 (days/year)
Average power saving (kW)
during accumulation when
Pr. 898 = 10 or 9999
Pr. 899
100