The ATV21 keeps giving me " OH " error. It cause the drive to stop operating ?
The error " OH " is drive overtemperature fault .
This could be due to the following reasons:
• The drive cooling fan is not working.
• The ambient temperature is too high.
• An enclosure air vent is blocked.
• A heat source is too close to the drive.
• The drive heatsink temperature sensor is malfunctioning.
What you should do:
• Restart operation by resetting the drive fault after cool-off.
• Decrease the ambient temperature by increasing the free space around the drive and removing any heat generating source from the proximity of the drive.
This could be due to the following reasons:
• The drive cooling fan is not working.
• The ambient temperature is too high.
• An enclosure air vent is blocked.
• A heat source is too close to the drive.
• The drive heatsink temperature sensor is malfunctioning.
What you should do:
• Restart operation by resetting the drive fault after cool-off.
• Decrease the ambient temperature by increasing the free space around the drive and removing any heat generating source from the proximity of the drive.
Released for: Schneider Electric USA
