INVT GD18 Series 2in1, GD10 Series Mini & GD800 Pro Series Drive
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Nov 18, 2024 5:26 am
OH2 fault in an INVT GD10 drive indicates IGBT Overheat condition. This means that the temperature of the inverter's power modules has exceeded a critical threshold.
Common Causes of OH2 Faults:
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Excessive Load:
- Prolonged operation at high load can generate excessive heat.
- Mechanical issues like bearing failures or belt slippage can increase the motor's load and, consequently, the inverter's load.
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Poor Ventilation:
- Obstructed airflow to the inverter's cooling fans can impede heat dissipation.
- Dust accumulation on the heat sink can reduce its efficiency.
-
Environmental Factors:
- High ambient temperature can exacerbate the heat dissipation problem.
- Direct sunlight or exposure to heat sources can increase the inverter's operating temperature.
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Internal Component Failure:
- Faulty power modules or other internal components can generate excessive heat.
Troubleshooting Steps:
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Check the Load:
- Ensure the load on the motor is within its rated capacity.
- Verify the mechanical condition of the driven equipment.
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Inspect the Inverter's Ventilation:
- Clean the inverter's cooling fans and heat sink to remove dust and debris.
- Ensure proper airflow to the inverter.
-
Check the Ambient Temperature:
- Avoid operating the inverter in excessively hot environments.
- Consider using additional cooling measures like fans or air conditioning.
-
Verify Internal Components:
- Inspect the power modules and other components for signs of damage or overheating.
- Consult the inverter's manual for specific diagnostic procedures.