№
SR-ZSV00039
-
38
-
Motor Business Unit, Appliances Company, Panasonic Corporation
Specify switching level and hysteresis in accordan
②
ce with switching conditions.
Specify switching delay time
③
。
The switching delay time specifies a period of delay time for switching from 2
nd
gain to 1
st
gain.
When switching from 2
nd
gain to 1
st
gain, the switching conditions must be satisfied during a period of switching de-
lay time.
Specify position gain switching time
④
When switching gains, velocity loop gain, speed integration constant, speed detection filter, and torque filtering con-
stant are switched instantaneously. However, position loop gain can be gradually switched to avoid problems
caused by sudden change to a high gain.
When “0” is specified for Pr1.19 “Position gain switching time”
When “5” is specified for Pr1.19 “Position gain switching time”
High gain
Low gain
166
µ
s
High gain
Low gain
0.5ms
1st gain
2nd gain
1st gain
Switching
level
Hysteresis
Hysteresis
Gain switching delay
Cancelled because the con-
ditions are not satisfied.
1st gain
2nd gain
Switching
level
1st gain