Delta VFD-V Series Drive
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May 16, 2022 7:47 am
How can resolve problem ov fault in delta VFD-V series drive ?
1 Reply
May 16, 2022 7:48 am
OV: DC voltage of the main
circuit exceeds the
over-voltage detection level
230 V Series: about 400V
460 V Series: about 800V
Check whether the input voltage is
within the scope of the rated input
voltage of the AC drive, and monitor
whether there is any occurrence of
the voltage transients
If it is of the motor inertia uprising
voltage that caused the exceeding
voltage on the DC high-voltage side
within the AC drive, the solution is to
extend the accel/decel time or install
the braking resistor (optional)
