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Energy-saving
To perform energy saving, set b8-01 (Energy Saving Mode Selection) to 1. Energy-saving control can be per-
formed using both V/f control and open-loop vector control. The parameters to be adjusted are different for
each. In V/f control, adjust b8-04 to b8-06, and in vector control, adjust b8-02 and b8-03.
Related Parameters
Name
Parameter
Number
Display
Energy Saving
Control
Selection
b8-01
Energy Save
Sel
Energy Saving
Gain
b8-02
Energy Save
Gain
Energy Saving
Control Filter
Time Constant
b8-03
Energy Save
F.T
Energy Saving
Coefficient
Value
b8-04
Energy Save
COEF
Power
Detection Filter
b8-05
Time
kW Filter Time
Search
Operation
b8-06
Voltage Limit
Search V Limit
Motor Rated
Slip
E2-02
Motor Rated
Slip
Motor Rated
Output
E2-11
Mtr Rated
Power
* 1. Set to 1.0 in Vector Control Mode with PG.
* 2. Initial settings vary based on drive capacity and control mode.
* 3. Caution: Initial settings will vary based on motor capacity
* 4. Initial/Default settings vary based on drive capacity. Values shown here are for 200-240V class 0.4kW drives.
Description
Energy Savings function enable/
disable selection.
0: Disabled
1: Enabled
Sets energy savings control gain
when in vector control mode.
Sets energy saving control filter
time constant when in vector
control mode.
Used to fine-tune the energy
savings function when in V/f
Control Mode.
Used to fine-tune the energy
savings function when in V/f
Control Mode.
Used to fine-tune the energy
savings function when in V/f
Control Mode.
Sets the motor rated slip in hertz
(Hz). This value is automatically
set during rotational
Auto-Tuning.
Sets the motor rated power in
kilowatts (kW). This value is
automatically set during
Auto-Tuning. 1HP = 0.746kW
Change
Setting
Factory
during
Range
Setting
V/f
Operation
0 or 1
0
No
A
0.0
0.7
to
Yes
No
*1
10.0
0.00
0.50sec
to
Yes
No
*2
10.0
0.0
*3
to
No
A
*4
655.00
0
to
20ms
No
A
2000
0 to 100
0%
No
A
0.00
2.90Hz
to
No
A
*4
20.00
0.00
0.40kW
to
No
Q
*3
650.00
Individual Functions
Control Methods
Open
Open
V/f
Loop
Flux
Loop
with
Vector
Vector
Vector
PG
1
2
A
A
A
A
No
A
A
A
No
A
A
A
A
No
No
No
A
No
No
No
A
No
No
No
A
A
A
A
Q
Q
Q
Q
6-
107
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Troubleshooting
