6-38
Parameters b8-01 and b8-02 cannot be changed during operation.
Parameter Display name Setting Units Default
Valid access levels
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
b8-01 Energy Save Gain 0 to 100 % 80
Advanced Not applicable.
b8-02 Energy Save Freq 0.0 to 400.0 Hz 0.0
Timing Chart
Run command
Energy-saving command
Output frequency
Output voltage
Frequency reference ≥ b8-02
E1-03 to E1-10 setting × Energy Save Gain (B8-01)
L2-04
OFF
OFF
ON
ON
6-4-3 Hunting-prevention Function
The
hunting-prevention function suppresses hunting when the motor is operating
with a light load. This
function is valid with V/f control and V/f with PG control. Parameters C7-01 and C7-02 cannot be
changed during operation.
Parameter Display name Setting Units Default
Valid access levels
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C7-01 Hunt Prev Select 0, 1 --- 1 Advanced Not applicable.
Setting Function
0 Disables the hunting-prevention function.
1 Enables the hunting-prevention function.
Parameter Display name Setting Units Default
Valid access levels
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C7-02 Hunt Prev Gain 0.0 to
2.50
Multi-
ples
1.00 Advanced Not applicable.
Normally
it isn’t necessary to change these parameters. Adjust these parameters as
follows if hunting
occurs with a light load.
Advanced Operation Chapter
6
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