Applicable Systems
FC-30
FC-51
FC-101
FC-202
FC-302
Symptoms
Overheating warning: drive temperature approaching trip limit.
Possible Causes
- Cooling inadequate
- Ambient temperature high
- Heavy duty cycle
Troubleshooting Steps
- Step 1: Check enclosure ventilation
Airflow unobstructed - Step 2: Verify cooling fan operation
Fan running at rated speed - Step 3: Reduce duty cycle or ambient temperature
Temperature below warning threshold
How to Reset
Auto-clear when temperature drops below warning level.
Source: Danfoss VLT FC-302 Operating Guide, Danfoss A/S
Category: PLC & VFD