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

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MAINTENANCE
Troubleshooting
179
oH1
(9)
Over heat 1 Warn
The AC motor drive detects over-heating of IGBT
Action and Reset
Action condition The AC motor drive detects over-heating of IGBT, and over the protection level of oH1 warning.
When [PROT-18] is higher than the IGBT over-heating level, the drive shows oH1 error without displaying oH1 warning.
Action time When IGBT temperature is higher than [PROT-18]
Related parameters [PROT-18]
Reset method Automatically
Reset condition The drive resets when IGBT temperature is lower than oH1 warning level minus (–) 5°C
Recorded N/A
Possible Causes Corrective Action
• Ambient temperature or temperature
inside the cabinet is too high, or there is
obstruction in the ventilation hole of the
control cabinet.
• Check if there is any obstruction on the
heat sink or if the fan is running
• Insufficient ventilation space
• Check if the drive matches the
corresponded loading
• The drive has run 100% or more of the
rated output for a long time
• Check the ambient temperature. Regularly inspect the ventilation hole of the control cabinet.
Change the installed place if there are heating objects, such as braking resistors, in the surroundings.
Install/ add cooling fan or air conditioner to lower the temperature inside the cabinet.
• Remove the obstruction or replace the cooling fan.
• Increase ventilation space of the drive.
• Decrease loading. Decrease the carrier. Replace with a drive with larger capacity.
• Replace with a drive with larger capacity.
Warning Display Description
oH2 (10)
Over heat 2 Warn
The drive has detected over heat of the board-level component
Action and Reset
Action condition oH2 error level minus (–) 5°C
Action time The oH2 warning occurs when the board-level component temperature is higher than oH2 warning level
Reset method Automatically
Reset condition The drive resets when IGBT temperature is lower than oH1 warning level minus (–) 5°C
Recorded N/A
Possible Causes Corrective Action
• Ambient temperature or temperature
inside the cabinet is too high, or there is
obstruction in the ventilation hole of the
control cabinet.
• Check if there is any obstruction on the
heat sink or if the fan is running
• Insufficient ventilation space
• Check if the drive matches the
corresponded loading
• Check the ambient temperature. Regularly inspect the ventilation hole of the control cabinet.
Change the installed place if there are heating objects, such as braking resistors, in the surroundings.
Install/ add cooling fan or air conditioner to lower the temperature inside the cabinet.
• Remove the obstruction or replace the cooling fan.
• Increase ventilation space of the drive.
• Decrease loading. Decrease the carrier. Replace with a drive with larger capacity.
Warning Display Description