YASKAWA VS-606V7 Series Instruction Manual page 113

• Intregal (I) Limit (n134)
Parameter
No.
n134 Intregal (I) limit
This parameter prevents the calculated value of the integral control from exceeding the
fixed amount. There is normally no need to change the setting.
Reduce the setting if there is a risk of load damage, or of the motor going out of step by
the inverter's response when the load suddenly changes. If the setting is reduced too
much, the target value and the feedback value will not match.
Set this parameter as a percentage of the maximum output frequency with the
maximum frequency as 100%.
• PID Offset Adjustment (n133)
Parameter
No.
n133 PID Offset adjustment
Parameter n133 adjusts the PID control offset.
If both the target value and the feedback values are set to zero, adjust the inverter
output frequency to zero.
• PID Primary Delay Time Parameter (n135)
Parameter
No.
n135 PID primary delay time parameter
Parameter n135 is the low-pass filter setting for PID control outputs.
There is normally no need to change the setting.
If the viscous friction of the mechanical system is high or if the rigidity is low causing
the mechanical system to resonate, increase the setting so that it is higher than the
resonance frequency period.
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Setting
Name Unit
Range
% 0 to 100
Setting
Name Unit
Range
% -100 to 10.0
Setting
Name Unit
Range
Seconds 0.0 to 10.0
Initial
Setting
100
Initial
Setting
0
Initial
Setting
0.0