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GD350A series high-performance multifunction VFD
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(5) AM IF control
Generally, the IF control mode is valid for AMs. It can be used for SMs only when the frequency is
extremely low. Therefore, the IF control mode described in this manual is only involved with AMs. IF
control is implemented by performing closed-loop control on the total output current of the VFD. The
output voltage adapts to the current reference, and open-loop control is separately performed over
the frequency of the voltage and current.
Customized V/F curve (V/F separation) function: