Brand: AEG
Category: Other
Document Type: Manual
Language: EN
Manual for PROTECT RCS
Uploaded: April 20, 2026, 7:43 p.m.
Manual Publish Date: 2024-03-13
System Overview
The PROTECT RCS MIPe range of rectifiers, battery chargers, and DC/DC converters are delivered as 19-inch racks. The system is designed for DC power supply or battery charger solutions. It comprises a 19" rack with an interface motherboard, a CoSSMIC Slot controller, and up to three MIPe rectifier or converter modules.
Key Functions
- Rectifier/Converter Modules: Perform AC/DC conversion for charging or power supply.
- CoSSMIC Slot Controller: Manages system settings, monitors environmental and electrical values, and controls the rectifier/converter modules.
- Interface Motherboard: Provides the central connection point for all modules and external options.
Basic Operation
After installation and preliminary checks, the system is switched on. The display will show floating voltage and rectifier current at no-load. Subsequent steps involve battery commissioning charge (if applicable) and system configuration through the menu interface. The system provides monitoring, configuration, and command functions accessible via the LCD display and control buttons.
Safety Precautions
IMPORTANT: Always ensure operations are performed by qualified personnel aware of electrical hazards. Lethal voltages exist across battery terminals. Always verify absence of voltage with a voltmeter before any operation. Handle equipment with care to avoid damage.
Troubleshooting and error codes
| ALARM or EVENT | PROBABLE CAUSE | CORRECTIVE ACTION |
| The display is white or black | Contrast problem | Do not touch any button for 5 minutes. This will automatically activate the default menu. Held the rightmost button to increase the contrast and leftmost button to decrease the contrast. |
| AC HIGH | Mains voltage out of limits. Programmable threshold: default value or customer demand value. |
Check the mains voltage. The voltage must as per the specified value on the customer drawing package. |
| AC LOW AC FAIL |
Rectifier off. Mains protection opened. |
Switch on the rectifier. Check the fuse(s). Replace if necessary. Check the input breaker/switch. |
| RECT.FAIL <= N RECT.FAIL > N RECT FAN FAIL DC-DC FLT <=R DC-DC FLT >R |
One or more rectifier/converter modules are faulty or have internal fan fault. The related module front led "alarm" is ON. | . Remove the faulty module and replace it with a new one. . Proceed with a rectifier recount through the command menu (for rectifiers only) |
| BATT VOLT HIGH | The rectifier output voltage is higher than the maximum allowable value. Programmable threshold: default value or customer demand value. |
Call the Customer Service Department. |
| BATT VOLT LOW | Battery in discharge resulting from: . rectifier off. . mains absence or low mains voltage. . missing rectifier modules |
Switch on the rectifier. Check the mains. |
| DC HIGH VOLT | The rectifier output voltage is higher than the maximum allowable value. Programmable threshold: default value or customer demand value. |
Call the Customer Service Department. |
| DC LOW VOLT | Low load voltage resulting from: . rectifier off. . mains absence or low mains voltage. . missing rectifier modules |
Switch on the rectifier. Check the mains. |
| EARTH FLT P | Low resistance between positive output and cabinet ground. Programmable threshold: default value or customer demand value. |
. Check for the insulation fault. |
| EARTH FLT N | Low resistance between negative output and cabinet ground. Programmable threshold: default value or customer demand value. |
. Check for the insulation fault. |
| BATT T SENSOR (option) | Short or open circuit on one of the temperature sensors (option). Cossmic board fault (ADC) |
Check the sensor connection. |
| BATT HIGH TEMP (option) | High battery temperature. Programmable threshold: default value or customer demand value. |
Call the Customer Service Department. Check the battery cabinet temperature. |
| DC HIGH CURR | Charger current limit indicator. It appears when the rectifier cannot supply the necessary power for the load. In this case, the rectifier operates in current-limiting mode. |
Check that load isn't higher than your customer drawings specifications |
| BATT ILIMIT | Battery current limit indicator. It appears after battery discharge. When the mains power supply comes back, the battery is in current-limiting mode. |
. This alarm is a warning. It should not stay more than the usual time charge. . Otherwise, call the Customer Service Department. |
| DISCH TEST FAIL BATTCONN TEST |
Appears after a battery test. Battery blackout. Battery in end of life. Battery not connected |
Call the customer service department |
| BATT ON DISCH | Battery in discharge resulting from: . rectifier off. . mains absence or low mains voltage. |
Switch on the rectifier. Check the mains. |
| BACKPLANE MEM CAN1 FAULT |
The memory in the backplane is not initialized or corrupted. Internal communication error between the microcontrollers and rectifier modules |
Call the customer service department. |
| HIGH RATE FAULT | High rate charge time too long. | Call the customer service department. |
| SYST EXT SHDN | Rectifier shutdown on external command It can be due to a normal system operation. |
Check the the shutdown order connected to the system Call the customer service department to identify bad system configuration. |
| BATT_SYMM (option) | Battery cell is shorted, or has an open circuit or when asymmetrical cell voltage is detected. Fuses on measurement wires protection damaged. |
Check the battery and replace the defective cells. Correct the fault leading to breakage and change the fuse if necessary. |