Data Sheet

UC10.241, UC10.242
UC-Series
24V, 15A, CAPACITOR-BASED DC-UPS
May 2016 / Rev. 2.2 DS-UC10.241-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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23.10. TROUBLESHOOTING
The following guidelines provide instructions for fixing the most common failures and problems. Always start with the
most likely and easiest to check condition. Some of the suggestions may require special safety precautions. See notes in
section 2 first.
Symptom: Action:
“Check input voltage” LED is on - Check input voltage (must be between 22.8V and 30V)
DC-UPS did not buffer - Inhibit input was set.
- Capacitor did not have enough time to be charged.
DC-UPS stopped buffering - Capacitor was discharged.
- Capacitor did not have enough time to be charged.
- Inhibit was activated
- PC-mode was activated
Output has shut down in normal mode - Over-temperature protection might have triggered. Let the DC-UPS
cool down.
- PC-mode was activated (if not longer than 5s)
DC-UPS constantly switches between
normal mode and buffer mode
The supplying source on the input is too small and can not deliver
sufficient current. Use a larger power supply or reduce the output load