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Energy saving operation and energy saving monitor
4.14.2 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
200V class (400V class)
Description
52
DU/PU main display data
selection
0
(output
frequency)
0, 5, 6, 8 to 14, 17, 20,
23 to 25, 50 to 57, 67,
81 to 86, 100
50: Power saving monitor
51: Cumulative saving power monitor
54
CA terminal function
selection
1
(output
frequency)
1 to 3, 5, 6, 8 to 14, 17, 21,
24, 50, 52, 53, 67, 70, 85
50: Power saving monitor
158
AM terminal function
selection
1 to 3, 5, 6, 8 to 14, 17, 21,
24, 50, 52, 53, 67, 70, 86
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 167)
during commercial power supply
operation.
893
Energy saving monitor
reference (motor capacity)
SLD/LD value
of Applied
motor Capacity
02330
(01160) or
less
0.1 to 55kW
Set the motor capacity (pump
capacity). Set when calculating power
saving rate, power saving rate average
value, commercial operation power.
03160
(01800) or
more
0 to 3600kW
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
Set the power unit cost. Displays the
power saving amount charge 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%
Use for calculation of annual power
saving amount. Set the annual
operation ratio (consider 365 days ×
24hr as 100%).
9999 No function
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 190)
The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write
selection.