Mitsubishi Electric FR-A700 EC, Instruction Manual, Page: 545 / 826

Parameter Energy saving operation and energy saving monitor
FR-A700 EC 6 - 365
Power estimated value of commercial power supply operation (Pr. 892, Pr. 893, Pr. 894)
Select the commercial power supply operation pattern from among the four patterns of
discharge damper control (fan), inlet damper control (fan), valve control (pump) and commercial
power supply drive, and set it to Pr. 894 "Control selection during commercial power-supply
operation".
Set the motor capacity (pump capacity) to Pr. 893 "Energy saving monitor reference (motor
capacity)".
The power consumption rate (%) during commercial power supply operation is estimated from
the operation pattern and the ratio of speed to rating (current output frequency/Pr. 3 "Base
frequency") in the following chart..
From the motor capacity set in Pr. 893 and Pr. 892 "Load factor", the power estimated value
(kW) during commercial power supply operation is found by the following formula:
Fig. 6-174:
Characteristic of the power consumption
I001181C
NOTE Since the speed does not increase above the power supply frequency in commercial power
supply operation, it becomes constant when the output frequency rises to or above Pr. 3
"Base frequency".
Commercial power-supply drive
Discharge side
damper control
(fan)
Inlet damper control
(fan)
Valve control
(pump)
P
o
w
e
r consumption [%]
Ratio of speed to rating
Power estimated value [kW] during
commercial power supply operation
Pr. 893 [kW]
Power consumption [%]
100
---------------------------------------------------------------
×
Pr. 892 [%]
100
-----------------------------
×
=