Omron VARISPEED G7 Instruction Manual page 123

Energy Saving: b8
User constants for energy-saving control functions are shown in the following table.
Con-
stant
Number
Energy-sav-
ing mode
selection
b8-01
Energy Save
Sel
Energy-sav-
ing gain
b8-02
Energy Save
Gain
Energy-sav-
ing filter time
constant
b8-03
Energy Save
F.T
Energy-sav-
ing coeffi-
cient
b8-04
Energy Save
COEF
Power detec-
tion filter
time constant Set the time constant for out-
b8-05
kW Filter
Time
Search opera-
tion voltage
limiter
b8-06
Search V
Limit
* 1. The factory setting is 1.0 when using V/f control with PG.
* 2. The factory setting is 2.00 s when Inverter capacity is 55 kW min. The factory setting will change when the control method is changed. (Open-loop vec-
tor 1 factory settings are given.)
* 3. The same capacity as the Inverter will be set by initializing the constants.
* 4. The factory settings depend on the Inverter capacity.
-18
5
Name
Description
Display
Select whether to enable or
disable energy-saving con-
trol.
0: Disable
1: Enable
Set the energy-saving gain
with the open-loop vector
control method.
Set the energy-saving filter
time constant with the open-
loop vector control method.
Set the maximum motor effi-
ciency value.
Set the motor rated capacity
in E2-11, and adjust the value
by 5% at a time until output
power reaches a minimum
value.
put power detection.
Set the limit value of the volt-
age control range during
search operation.
Perform search operation to
optimize operations using
minute variations in voltage
using energy-saving control.
Set to 0 to disable the search
operation. 100% is the motor
base voltage.
Control Methods
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0 or 1 0 No A
0.0 to
0.7
Yes No
10.0
*1
0.00 to
0.50 s
Yes No
10.0
*2
0.0 to
*3
No A
*4
655.00
0 to
20 ms No A
2000
0 to
0% No A
100
MEMO
Open Open
BUS
V/f Loop Flux Loop
Regis-
with Vec- Vec- Vec-
ter
PG tor tor tor
1 2
A A A A 1CCH
No A A A 1CDH
No A A A 1CEH
A No No No 1CFH
A No No No 1D0H
A No No No 1D1H
Page
-
-
-
-
-
-