YASKAWA Varispeed E7 - Hunting-Prevention Function

Improved Operating Efficiency
6-29


 Hunting-Prevention Function
The hunting-prevention function suppresses hunting when the motor is operating with a light load.
If high response has the priority to vibration suppression this function should be disabled (N1-01 = 0).
Related Constants
Adjusting the Hunting-Prevention Gain (N1-02)
Normally it is not necessary to change this setting. Adjust the value under the following circumstances:
• If vibrations occur under light load condition increase the setting.
• If the motor stalls reduce the setting.
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Access
Level
N1-01
Hunting-prevention function
selection
0: Hunting-prevention function disabled
1: Hunting-prevention function enabled
0 or 1 1 No A
N1-02 Hunting-prevention gain Set the hunting-prevention gain multiplication factor.
0.00 to
2.50
1.00 No A
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