175
Energy saving operation and energy saving monitor
4.15.2 Energy saving monitor (Pr. 891 to Pr. 899)
From the power consumption estimated value during commercial power supply operation, the energy saving
effect by use of the inverter can be monitored/output.
Parameter
Number
Name
Initial Value
Setting Range
Description
52
DU/PU main display data
selection
0
(output
frequency)
0, 5, 8 to 12, 14, 20, 23 to
25, 50 to 55, 61, 62, 64, 100
50: Power saving monitor
51: Cumulative power saving monitor
54
FM terminal function
selection
1
(output
frequency)
1 to 3, 5, 8 to 12, 14, 21, 24,
50, 52, 53, 61, 62
50:Power saving monitor
891
Cumulative power monitor
digit shifted times
9999
0 to 4
Set the number of times to shift the
cumulative power monitor digit
(Clamps the monitor value at
maximum.)
9999
No shift
(Clears the monitor value when it
exceeds the maximum value.)
892
Load factor
100%
30 to 150%
Set the load factor for commercial
power-supply operation. Multiplied by
the power consumption rate
(page 179)
during commercial power supply
operation.
893
Energy saving monitor
reference (motor capacity)
Rated
inverter
capacity
0.4 to 15kW
The motor capacity (pump capacity).
Set when calculating power saving
rate, average power saving rate,
commercial operation power.
894
Control selection during
commercial power-supply
operation
0
0
Discharge damper control (fan)
1
Inlet damper control (fan)
2
Valve control (pump)
3
Commercial power-supply drive (fixed
value)
895
Power saving rate
reference value
9999
0
Consider the value during commercial
power-supply operation as 100%
1
Consider the
Pr. 893
setting as 100%.
9999
No function
896
Power unit cost
9999
0 to 500
The power unit cost. Displays the
power cost savings on the energy
saving monitor.
9999
No function
897
Power saving monitor
average time
9999
0
Average for 30 minutes
1 to 1000h
Average for the set time
9999
No function
898
Power saving cumulative
monitor clear
9999
0
Cumulative monitor value clear
1
Cumulative monitor value hold
10
Accumulation continued
(communication data upper limit 9999)
9999
Accumulation continued
(communication data upper limit
65535)
899
Operation time rate
(estimated value)
9999
0 to 100%
Set the annual operation ratio
(consider 365 days
24h as 100%).
(Use for calculation of annual power
saving amount.)
9999
No function
The above parameters can be set when
Pr. 160 Extended function display selection
= "0".
(Refer to page 197)
The above parameters allow their settings to be changed during operation in any operation mode even if "0" (initial value) is set in
Pr. 77 Parameter
write selection
.
Performing IPM parameter initialization changes the settings.
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Страница 346: ...341 APPENDIX This chapter provides the APPENDIX of this product Always read the instructions before using the equipment ...