The Hybrid Charger has three status LEDs (red, yellow and green) that indicate the operating status and a further status LED (green) that indicates the status of the HV relay (High voltage relay).
In normal operation, the converter is switched on and off by the generator control. The states are run through automatically based on the generator states on the CAN bus.
In case of an error, the generator control automatically switches off the power supply to the converter. If this is not the case, the red LED flashes continuously. The converter can only be reset by restarting.
Status LEDs (red, yellow and green)
| LED | Status | Meaning | Description |
| red | flashing | ERROR | – The Converter Control is active. – The control of the PWM and the IGBTs is not active. – The control of the converter is switched off. – The HV DC relays are not switched on (2-pole disconnection). – The converter does not send any values such as speed, voltage, power, etc. on the CAN bus. – The converter can be parameterized in this mode. The values are taken over when switching to STANDBY mode. |
| yellow | flashing | STOP-SERVICE | – The Converter Control is active. – The control of the PWM and the IGBTs is not active. – The control of the converter is switched off. – The HV DC relays are not switched on (2-pole disconnection). – The converter does not send any values such as speed, voltage, power, etc. on the CAN bus. – The converter can be parameterized in this mode. The values are taken over when switching to STANDBY mode. |
| yellow/green | flashing simultaneously | STANDBY | – The Converter Control is active. – The control of the PWM and the IGBTs is not active. – The control of the converter is already running (idle). – The HV DC relays are not switched on (2-pole disconnection). – The converter sends values such as speed, voltage, power, etc. on the CAN bus. – The converter can be parameterized in this mode. The values are only taken over at the next transition from STOP-SERVICE to STANDBY mode. |
| green | flashing | RUN | – The Converter Control is active. – The control of the PWM and the IGBTs is active. – The control of the converter is running. – The HV(-) relay is switched on immediately, the HV(+) relay is switched on according to the set operating mode as soon as all switch-on conditions are met. – The converter sends values such as speed, voltage, power, etc. on the CAN bus. – The converter can be parameterized in this mode. The values are only taken over at the next transition from STOP-SERVICE to STANDBY mode. |
HV Relay Status LED (green)
| Status | Meaning | Description |
| permanently on | HV relays closed | – HV(+) and HV(-) are closed/switched on. – The converter is coupled to the battery/DC bus. |
| flashing | HV precharge | – HV(+) is open/not driven, HV(-) is closed/switched on. – Depending on the operating mode, the converter tries to precharge the internal DC-Link to the battery/DC bus voltage to subsequently couple to the battery/DC bus. |
| switched off | HV relays open | – HV(+) and HV(-) should be open/not activated. The inverter should not be coupled to the battery/DC bus. DANGER Danger to life due to high electrical voltage. The LED only shows the current target status. If the LED or a relay is defective or there is a fault in the control chain, relays can still be coupled. Observe the 5 safety rules. DANGER Danger to life due to high electrical voltage. The internal energy storage of the hybrid charger may remain charged for up to 10 minutes, even if the battery / DC bus is disconnected. Observe the 5 safety rules. |