Pre-Drive Check, Phase 2

In phase 2 of the pre-drive check, the alarm path from the SIM to the igniter output stages is checked.

The SIM transmits an alarm pulse, which is taken back after a 30 ms waiting period. Now each satellite transmits a status telegram with an OK signal to the SIM.

If the alarm mode is not correctly received, a fault entry is made in the fault memory.

This concludes the pre-drive check and the modules can now start normal operation. This means that the satellites with ignition capacitors can now be charged.

If all ignition capacitors are fully charged, this is notified in the status telegram to the SIM.

The AWL is switched off when all the modules report full ignition capacitors and no fault is stored.