Franklin Electric CERUS X-DRIVE CXD-003A-4V, Installation And Operation Manual

Page: 151 / 252

MAINTENANCE
Troubleshooting
151
oH1
(16)
IGBT over heat
IGBT temperature exceeds the protection level
Action and Reset
Action level When IGBT is higher than the [PROT-18] overheating protection level, oH1 error occurs instead of oH1 warning.
Action time 100 ms
Related parameters OH Warning [PROT-18] and Fan Control [PROT-45]
Reset method Manually or Automatically if in Auto mode and Auto Restart is enabled.
Reset condition IGBT temperature is 10 °C below error level.
Recorded Yes
Possible Causes Corrective Action
• Ambient temperature too high
• VFD size does not match load
• Direct sunlight
• Obstruction of flow • Ensure that the ambient temperature falls within the specified temperature range.
• Make sure heat sink is not obstructed. Check if the fan is operating
• Check if there is enough ventilation clearance for the drive.
• Reduce load.
• Replace drive with a larger capacity model.
• Remove from direct sunlight.
Fault Display Description
oH2 (17)
Heat Sink oH
Capacitance temperature causes heatsink overheating.
Action and Reset
Action level Temperature error level depends on VFD model
Action time 100 ms
Reset method Manually or Automatically if in Auto mode and Auto Restart is enabled.
Reset condition Capacitance temperature is 10 °C below error level.
Recorded Yes
Possible Causes Corrective Action
• Ambient temperature too high
• VFD size does not match load
• Unstable power • Ensure that the ambient temperature falls within the specified temperature range.
• Make sure heat sink is not obstructed. Check if the fan is operating
• Check if there is enough ventilation clearance for the drive.
Fault Display Description