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Chapter 7 Troubleshooting | 75 |
Chapter 7 Troubleshooting
7.1 Troubleshooting Rectifier
1. Troubleshoot Rectifier according to LED Indication
The usual fault symptoms of the rectifier include: power indicator (green) off, protection indicator (yellow) on, protection indicator (yellow) blinking, alarm indicator (red) on, and alarm indicator (red) blinking.
Table 7-1 Troubleshooting
| Symptom |
| Cause |
| Suggestion |
|
|
| No input voltage |
| Make sure there is input voltage |
|
|
|
|
|
|
| Power indicator (green) off |
| Input polarity reversed or input fuse |
| Replace the fuse with a new one of the same |
|
|
| model or reconnect the input power with | ||
|
|
| blown |
| |
|
|
|
| correct polarity. | |
|
|
|
|
| |
|
|
|
|
|
|
|
|
| AC input voltage outside the normal |
| Ensure the AC input voltage remain within |
|
|
| range |
| normal range |
|
|
|
|
|
|
|
|
| PFC |
| Replace the rectifier |
|
|
|
|
|
|
|
|
| Current sharing function is disabled |
| Replace the rectifier |
|
|
|
|
| |
| Protection indicator (yellow) |
| Rectifier | ||
|
|
|
|
| |
|
| 1. Fan blocked | 1. Remove the obstacle that blocks the fan | ||
| on |
| |||
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|
|
| |
|
|
| 2. Ventilation blocked: the inlet or |
| 2. Remove the objects that blocks the inlet or |
|
|
| outlet blocked |
| outlet |
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|
|
|
| 3. Ambient temperature too high or |
| 3. Remove the heater, lower the ambient |
|
|
| rectifier inlet too close to an heater |
| temperature |
|
|
|
|
|
|
|
|
| Rectifier not inserted into the slot |
| Insert the rectifier again properly |
|
|
| completely |
| |
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| |
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|
|
| Protection indicator (yellow) |
| Rectifier communication failure | Check the communication cables | |
| blinking |
| |||
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|
|
|
| |
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|
|
| Remove the rectifier from the DC power |
| Alarm indicator (red) on |
| Rectifier |
| system, restart the rectifier, and replace the |
|
|
|
|
| rectifier if |
|
|
|
| ||
| Alarm indicator (red) blinking | Fan not running | Replace the fan | ||
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|
|
|
|
2. Rectifier Current Sharing Unbalanced
When multiple rectifiers are in parallel connection and the unbalance of current sharing among them is bigger than 3%, check if the communication cables are correctly connected.
ACTURA Flex 48330 Power System User Manual