The following is a description of an inverter fault on an Enercon Compak 9000 power supply.
| Symptom, Fault |
| Symptom |
The inverter fault light occurs immediately on starting the power supply regardless of the desired power level. |
| Fault |
The DC to AC inverter section of the power supply has a fault. This could be a defective device, a defective driver board or both. |
| CAUTION! |
When a defective device is replaced, ensure the associated gate leads are replaced also. If not, the leads may result in additional device failures. |
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| Solutions |
- Check the chopper and inverter devices in accordance with the device checks on page 2. (Item 14 & 15).
- If defective devices are identified, replace both the device and the leads.
- If no defective devices are identified, proceed.
- Disconnect the output leads from the power supply to the high voltage transformer. Restart the power supply and check the symptoms.
- If the inverter fault occurs, replace the driver board (Item 11).
- If no inverter fault proceed to troubleshoot a High Voltage Trip fault
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| Symptom, Fault |
| Symptom |
The inverter fault light occurs only after a specific power level is obtained. |
| Fault |
This type of fault is caused by a high voltage short in the output load. To isolate this fault, proceed with the troubleshooting section for a High Voltage Trip. |
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