 |  DANGER |
| Optical radiation causes serious injuries to eyes and skin | |
| Do not look into the light. Wear opaque eye protection. Install a protective cover if possible. |
 |
WARNING |
| The device can heat up to 75 °C. | |
| Do not touch the hot surface.
Let the device cool down before carrying out any work on it. |
Switch on the power supply of the XLC4 control unit.
The status LEDs display the stored device ID during power-up.
The input voltage and the values of the temperature sensors are checked.
The XLC4 control unit establishes a connection to the Corona modules via the 4 output channels. The red LED is on.
After successful power-up the green LED is flashing every 5 seconds. Otherwise the red LED is on.
A identification string is sent via the serial interface. The string contains the type of the control unit and the loaded firmware version and release.