If you encounter any problems when using or commissioning the charging stations, please consult the table below. If the problem persists or is not solved using the table below, contact your Wellborne representative.
The tables below describe the various faults that your DC terminals and stations may encounter, and how these faults are reported. The fault description is displayed directly on the LCD screen.
DC terminals, stations & superchargers #
| Anomaly | Confirmation of diagnosis |
|---|---|
| Emergency stop button depressed | 1. Identify the emergency stop button 2. Turn it clockwise to reset its position |
| RFID communication fault | 1. Check that the RFID plug is correctly connected to the PCB 2. Check SAM2 board for faults |
| Overheating | 1. Open your charger to measure the temperature of the various components and identify which one is overheating 2. The normal operating temperature of the components should be less than 85°C 3. Above 90°C, the unit is overheating. |
| Lightning protection fault | 1. The lightning arrester should light up green, if it is red, then the lightning protection fault is confirmed 2. Check that the RS485A/B protector connection is tight 3. Check that the charger’s communication address is correct. For example, according to the binary numbering code, the first code for a 60kW charger is 00, the second 01, the third 10, and so on. |
| Charger communication fault | 1. Check that the charger’s RS485A/B communication cable is tight 2. Check that the charger’s communication address is correct. For example, according to the binary numbering code, the first code of a 60kW charger is 00, the second 01, the third 10, and so on 3. Check that the 120Ω resistor at the rear of the charger is connected |
| Meter communication failure | 1. Check that the electric meter’s RS485A/B communication cable is tight 2. Check the meter’s address on its label and enter it via the parameters |
| DC overvoltage fault | 1. Check that the electricity meter’s voltage sampling line is tight 2. Measure charger output voltage: it must not exceed 760V |
| DC overcurrent fault | 1. Check that the sampling cable from the shunt to the electricity meter is tight 2. Replace shunt |
| Wait for BMS communication delay | 1. Check that the CP signal line is tight 2. Check if the SECC power indicator is lit 3. Get CANL-CANH information for analysis |
| Isolation detection timeout | 1. Check that the insulating panel communication cable is tight 2. Check that the CN12 connector on the main control board is tight 3. Replace insulating panel |
| Insulation detection fault | 1. Check that the insulation plate sampling circuit is correct 2. Check that the CN11 connector on the main control board is tight 3. Replace insulation board |
| Battery voltage inversion fault | 1. Check that the charging gun anode cable is connected 2. The voltage measured must be -358.3 V between + and – 3. If there is a voltage inversion, the +/- cable must be replaced. |
| Positive DC contactor adhesion fault | 1. Check whether the surface of the positive-electrode contactor is abnormal 2. Use a multimeter to measure the resistance of the positive-electrode contactor 3. If the resistance is too high, replace the contactor. |
| Negative DC contactor adhesion fault | 1. Check whether the surface of the negative electrode contactor is abnormal 2. Use a multimeter to measure the resistance of the negative-electrode contactor 3. If the resistance is too high, replace the contactor. |
| Gun disconnection fault | 1. Check that the BLD + (orange) BLD- (grey) charging cable on the gun side is tight 2. Check that the BLD + (red) BLD- (black) charging cable on the motherboard side is tight 3. Tighten connectors if necessary |
| Gun connection overheating fault | 1. Check that the temperature measurement cable on the charging gun is tight 2. Check that the CN5 connector for temperature measurement is correctly connected to the motherboard. |
| AC contactor adhesion fault | 1. Check contactor surface for abnormalities 2. Replace the contactor if you notice any abnormality. |
| AC input overvoltage | 1. Check voltage between AC supply terminals: L1 and N, L2 and N, L3 and N 2. Voltage between L and N must be less than 264V 3. Make sure the voltage between L and N is approximately 230V |
| AC input undervoltage | 1. Check voltage between AC supply terminals: L1 and N, L2 and N, L3 and N 2. Voltage between L and N must be above 195V 3. Make sure the voltage between L and N is approximately 230V |
| BMS communication fault | 1. Check CP signal cable for tightness 2. Tighten CP signal line |
