too large or the integration time is too short can cause the oscillation of the system.
Proposed adjustment method:
If the factory default parameters can not meet the requirements, the relevant
parameters values can be subject to fine tuning. On
increasing the proportional gain ,it ensures no oscillation to the system .and then
reducing the integration time to make the system both quick response characteristic
and small overshoot
Caution: Prior to setting PI parameters, please set F3-15 (system inertia) to
appropriate value. Or, improper PI parameter setting may result in the large speed
overshoot, and even in voltage fault when the overshoot drops.
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