Brand: AEG
Category: Power Supply
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for Protect C.1000
Uploaded: April 20, 2026, 8:01 p.m.
Manual Publish Date: 2014-08-01
Warranty Information
Warranty does not apply to damage caused by non-compliance with instructions. AEG is not liable for consequential damage.
Basic Operation: The AEG Protect C UPS provides continuous power to connected devices. It filters mains voltage, converts it to DC for charging batteries, and then inverts it to AC for the load. In case of power outage, it seamlessly switches to battery power. The unit features an automatic bypass for increased reliability and a graphical LCD for monitoring and control. Key functions include:
- Mains Filter: Surge voltage and backfeed protection.
- Rectifier: Converts mains AC to DC with PFC logic.
- Battery Charger: Charges the battery system.
- Inverter: Converts DC to sinusoidal AC output.
- Automatic Bypass: Switches to mains directly if inverter fails.
- Control Unit: Manages operations via digital signal processor.
- Display: For status, logs, and measurements.
- Communication Interfaces: For PC connection and management.
- Mains Filter: Surge voltage and backfeed protection.
- Rectifier: Converts mains AC to DC with PFC logic.
- Battery Charger: Charges the battery system.
- Inverter: Converts DC to sinusoidal AC output.
- Automatic Bypass: Switches to mains directly if inverter fails.
- Control Unit: Manages operations via digital signal processor.
- Display: For status, logs, and measurements.
- Communication Interfaces: For PC connection and management.
Troubleshooting and error codes
| Alarm or Notice | Possible cause | Remark / Action |
| Output Overload (Alarm #25) Intermittent Alarm | The load level is at or has exceeded the configurable threshold limit for a Overload condition. | The UPS can support the load indefinitely at this load level. The alarm clears when the load drops below 5% of the set point. |
| Battery DC Over Voltage (Alarm #68) Intermittent Alarm | The battery voltage level has exceeded the maximum allowable limits. | The uninterruptible power supply turns off the charger until the next power recycle. Contact your service representative. |
| Charger Failure (Alarm #34) Continuous Alarm | A battery charger fault has been detected. | The UPS turns off the charger until the next power recycle. Contact your service representative. |
| Output Short Circuit (Alarm #58) Intermittent Alarm | The uninterruptible power supply has detected abnormal impedance that placed on its output and considers it a short circuit. | The uninterruptible power supply operates as a constant-current source (3 x In) and shuts down after five cycles (100ms). |
| Heat sink Over Temperature (Alarm #73) Intermittent Alarm | The uninterruptible power supply has detected that one of its heat sinks has exceeded the maximum defined operating temperature. Possible fan failure (see below). | Make sure that the fans are spinning and that the air intake vents on the uninterruptible power supply are not blocked. After the maximum temperature is reached, the uninterruptible power supply shuts down. |
| Fan Failure (Alarm #193) Continuous Alarm | The uninterruptible power supply has detected that one or more fans are not functioning correctly. | This is an alarm only. Contact your service representative immediately and remove the load. |
| Fatal EEPROM Fault (Alarm #53) Continuous Alarm | There is EEPROM data corruption due to a failed device or incorrect flash upgrade. | Contact your service representative. |