Troubleshooting
Problem | Possible Cause/s | Required Action |
Rectifier yellow LED | Rectifier power limit is active. |
on |
|
Rectifier temperature turndown is active, due to low AC supply voltage or excessive ambient temperature.
Check if the power system is recovering from a recent AC power outage. The power system may still be charging the batteries after the power outage. No further action is required.
Check that the rectifier capacity of the power system is not exceeded. Additional rectifiers may be required.
None. The power system will return to normal operation when the AC supply has returned to within its rated AC input voltage or operating temperature range, as specified in Appendix C.
High system output | Equalize, Fast Charge and/or |
voltage | Temperature Compensation |
| process is active |
|
|
| Incorrect float voltage setting |
| at supervisory module |
|
|
| Faulty rectifier |
Disable active processes if not required.
Check the float voltage setting of the supervisory module.
Record new setting.
Remove rectifier modules one at a time. (The output voltage returns to normal when faulty rectifier is removed.)
Replace faulty rectifier.
Low system output voltage (rectifiers not in current limit)
Rectifiers not on
Battery Test and/or Temperature Compensation process is active.
Incorrect float voltage setting at supervisory module.
Restore AC power.
Disable active processes if not required.
Check the float voltage setting of the supervisory module.
Record new setting.
Low system output | Load is too high for rectifier | |
voltage and rectifier | capacity. | |
yellow LEDs are on |
| |
Battery is recharging after AC | ||
(rectifiers are in | ||
power outage. | ||
current limit). | ||
| ||
|
| |
| continued |
Reduce load or add rectifier modules.
Check battery has recharged within expected time.
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IPN | ||
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