To Next PageTo Next PageWhy does Unipower Guardian Access 3U Power Supply show Urgent Module Failure?
This alarm indicates that more than one rectifier is reporting a Module failure. Please refer to the Module failure alarm to troubleshoot the problem.
What does Load/Battery Disconnection mean for Unipower Power Supply and what to do?
A Load/Battery Disconnection error on your Unipower Power Supply means the system voltage has dropped below the set limit, causing a system shutdown. Check the battery condition, the AC mains connection, the input breaker, and the rectifier modules.
What to do if Unipower Guardian Access 3U Power Supply shows High Load?
If your Unipower Power Supply is showing a High Load warning, it could be due to a faulty module or because the rectifier load current exceeds the set High load limit. Compare the load current with the installed rectifier capacity. You might need to add a rectifier, reduce the load, verify the High load limit setting, or replace the faulty module.
What does Mains Error mean on Unipower Power Supply?
A Mains Error on your Unipower Power Supply indicates that the AC supply is OFF on one rectifier in a system with only one rectifier plugged in, or the AC supply is OFF on at least two rectifiers in a system with a minimum of two rectifiers plugged in. To resolve this, verify that the AC input breaker is ON and check the AC input connection.
What to do if Unipower Guardian Access 3U Power Supply shows AC High Voltage?
If your Unipower Power Supply is showing an AC High Voltage error, it means the AC voltage has risen above the set limit. To resolve this, verify the High AC voltage limit and verify the AC Input voltage.
What to do if Unipower Guardian Access 3U Power Supply shows AC Low Voltage?
If your Unipower Power Supply is showing an AC Low Voltage error, it means the AC voltage has dropped below the set limit. To fix this, verify the Low AC voltage limit setting, check the AC input connection, and verify the AC input voltage.
What causes Unipower Guardian Access 3U Power Supply to have high system voltage?
High system voltage in your Unipower Power Supply can be caused by module failure or if the system voltage exceeds the set limit. In this case, replace the faulty module and check the High Voltage Alarm limit setting.
What to do if Unipower Power Supply shows Module Failure?
If your Unipower Power Supply indicates a module failure, it could be due to a faulty module, AC power being off on a single rectifier (if multiple are installed), a rectifier current sharing fault, low DC output voltage, overvoltage shutdown, module fan failure, or the module overheating. First, check if the module sends an alarm flag. Then, verify the AC voltage to the failed module. Try re-inserting the faulty module and waiting 30 seconds. If the problem persists, replace the faulty module.
General| Input Voltage | 90-264 VAC |
|---|---|
| Form Factor | 3U |
| Input Frequency | 47-63 Hz |
| Efficiency | Up to 90% |
| Cooling | Forced Air |
| Operating Temperature | 0°C to +50°C |
| Protections | Overvoltage, Overcurrent, Overtemperature, Short Circuit |
| MTBF | 100, 000 hours |
| Safety Standards | UL |
| EMC Standards | EN55022 |
