Inovance MD380-5T5.5GB - Page 154

MD380 User Manual Desc
ription of Function Codes
- 153 -
)unction Code Parameter Name Setting Range Default
)2-04 Speed loop integral time 2 0.01–10.00s 1.00s
)2-05 Switchover frequency 2
)2-02 to maximum
output frequency
10.00 Hz
Speed loop PI parameters vary with running frequencies of the AC drive.
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are obtained from the linear switchover between the two groups of PI parameters, as
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reference
PI
parameters
)2-00
)2-01
)2-03
)2-04
)2-02 )2-05
The speed dynamic response characteristics in vector control can be adjusted by setting the
proportional gain and integral time of the speed regulator.
To achieve a faster system response, increase the proportional gain and reduce the integral
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The recommended adjustment method is as follows:
If the factory setting cannot meet the requirements, make proper adjustment. Increase the
proportional gain first to ensure that the system does not oscillate, and then reduce the
integral time to ensure that the system has quick response and small overshoot.
Note
Improper PI parameter setting may cause too large speed overshoot, and overvoltage fault may
even occur when the overshoot drops.
)unction Code Parameter Name Setting Range Default
)2-06 Ve
ctor control slip gain 50%–200% 100%
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load runs at a very low speed, increase the value of this parameter; when the motor with
load runs at a very large speed, decrease the value of this parameter.
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