N: Special Adjustments - YASKAWA G7 Series Technical Manual

n: Special Adjustments

The following settings are made with the special adjustments parameters (n parameters): Hunting prevention
and speed feedback detection control.
Hunting Prevention Function: n1
User parameters for hunting prevention are shown in the following table.
Parameter
Number
n1-01
n1-02
-74
5
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Name
Description
Display
Hunting If the motor vibrates while
Prevention lightly loaded, hunting
Selection prevention may reduce the
vibration.
Hunt Prev
0: Disabled
Select
1: Enabled
Hunting Sets the gain for the Hunting
Prevention Prevention Function.
Gain Setting - If the motor vibrates while
lightly loaded and n1-01=1,
increase the gain by 0.1
until vibration ceases.
Hunt Prev
- If the motor stalls while
Gain
n1-01=1, decrease the gain
by 0.1 until the stalling
ceases.
Control Methods
Change
Setting Factory
V/f
during
Range Setting
V/f with
Operation
PG
0 to 1 1 No A
0.00
to 1.00 No A
2.50
Open Open
MODBUS
Loop Flux Loop
Register
Vector Vector Vector
1 2
A No No No 580H
A No No No 581H