Delta MS300 Series Drive
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Apr 26, 2022 7:14 am
How can resolve problem oH1 fault in delta MS300 drive ?
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Apr 26, 2022 7:15 am
IGBT overheating (oH1)
IGBT temperature exceeds the protection level.
1. Check ambient temperature.
2. Regularly inspect the ventilation hole of the control cabinet.
3. Change the installed place if there are heating objects, such as brake
resistors, in the surroundings.
4. Install/ add cooling fan or air conditioner to lower the temperature inside the
cabinet.
Check if the drive matches the corresponding load
1. Reduce the load
2. Reduce the carrier wave
3. Replace the drive with a larger capacity model
