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Excitation regulation proportional gain
Excitation regulation integral gain
Torque regulation proportional gain
Torque regulation integral gain
The PI parameter of vector control current loop can be obtained automatically after the dynamic tuning of
asynchronous motor, which generally does not need to be modified.
It should be noted that the integral regulator of the current loop does not use the integral time as the dimension,
but directly sets the integral gain.
If the PI gain of current loop is too large, the whole control loop may oscillate. Therefore, when the current
oscillation or torque fluctuation is large, the PI proportional gain or integral gain can be reduced manually.
4-2-8. Group P7 Fault and protection
Record the latest three fault types of frequency converter, 0 is no fault. For the possible causes and solutions of
each fault code, please refer to the relevant fault description.
Frequency of the third fault
Frequency of last failure
Current of the third fault
Bus voltage of the third fault
Bus voltage of last failure
Input terminal state of the third
fault
The status of digital input terminal in the latest
fault, the order is:
When the input terminal is on, the corresponding
binary bit is 1, and off is 0. The status of all X is
converted to decimal number display.
Output terminal state of the third
fault
The status of digital output terminal in the latest
fault, the order is:
When the output terminal is on, the corresponding
binary bit is 1, and off is 0. The status of all Y is
converted to decimal number display.
VFD state of the third fault
The time of the third fault
Present power on time of the last fault
The time of the third fault
Present operation time of the last fault
The frequency of the second fault
The current of the second fault
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