The LED indicator light is situated on the top side of the unit according to the following figure:
Green, blue and red LED indicate different operating conditions according to the following table:
State |
Green LED |
Red LED |
Blue LED |
Implemented by |
Explanation |
Power off |
- |
- |
- |
- |
No supply voltage |
Power on and no SW running |
- |
ON |
- |
HW |
Supply voltage is on, software is not running. |
Power on and SW at init phase with no errors |
ON |
- |
- |
Boot/Firmware |
Boot/Firmware is at init phase. |
Pre-operational state |
200 ms ON, 200 ms OFF |
- |
- |
Firmware |
CANopen slave pre-operational state. |
Operational state |
ON |
- |
- |
Firmware |
CANopen slave operational state. |
Stopped state |
200 ms ON, 1000 ms OFF |
- |
- |
Firmware |
CANopen stopped state. |
Fatal error |
- |
ON |
- |
Boot/Firmware/HW |
Control unit boot-up failed or a critical error while running. |
Update |
Blinks alternately with red LED |
Blinks alternately with green LED |
- |
Boot |
After firmware update boot-up, during the installation phase, red and green LEDs are flashed alternately. |
Update complete |
- |
- |
ON |
Boot |
Firmware update is complete and re-boot is required. |