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Household
1,531 fixes
Why does my VFD show overcurrent fault at startup
A VFD overcurrent fault at startup usually means the motor is drawing too much inrush current because the acceleration ramp is too…
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Why does my VFD show overcurrent fault at startup but runs fine after reset?
A VFD overcurrent fault at startup usually means the motor draws excessive inrush current during acceleration, often caused by too-short acceleration time,…
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Why does my VFD show overcurrent fault at startup only
A VFD overcurrent fault at startup usually means the motor's inrush current exceeds the drive's limit, often caused by too-short acceleration ramps,…
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Why does my VFD show overcurrent fault on startup
A VFD overcurrent fault on startup usually means the motor draws too much inrush current, the acceleration ramp is too short, or…
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Why does my VFD trip on ground fault only during motor startup
A VFD that trips on ground fault only during startup usually indicates insulation breakdown in the motor windings or cables that only…
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Why does my VFD trip on overcurrent fault during motor acceleration
A VFD trips on overcurrent during acceleration when the motor draws more current than the drive's limit, usually caused by too-short acceleration…
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Why does my VFD trip on overcurrent fault during motor startup?
A VFD trips on overcurrent at startup usually because the motor draws excessive inrush current, the acceleration ramp is too short, or…
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Why does my VFD trip on overvoltage when the motor decelerates?
A VFD trips on overvoltage during deceleration because the motor acts as a generator, pushing energy back into the DC bus faster…
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Why does my VFD trip on overvoltage when the motor slows down?
Your VFD trips on overvoltage during deceleration because the motor acts like a generator and pumps energy back into the drive, spiking…
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Why does my VFD-driven motor vibrate and overheat at low speeds below 20 Hz?
A VFD-driven motor vibrating and overheating at low speeds usually means the VFD's carrier frequency is too low, the motor isn't rated…
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Why does my VFD-driven pump motor trip on overcurrent at low speeds?
A VFD-driven pump motor tripping on overcurrent at low speeds usually means the VFD's torque boost or voltage/frequency ratio is set too…
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Why does my warehouse compressed air compressor run continuously even when no tools are in use?
Your compressor runs continuously because leaks in the compressed air system force it to maintain pressure, wasting energy. Check for audible hissing,…
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