Evaluation Condition Always. Set Condition An error counter is increased with one every 2 ms if U30 voltage is below 8.00 V, otherwise it is decreased with one. When all of the following conditions are fulfilled: Error counter reaches 10000 (takes 20 seconds if continous fault) UNIT_ENABLE pin is high or CPU has detected a power out or brown out reset. Clear Condition Depending on the set condition, one of the following: If U30 voltage is below 8.00 V, an error counter is increased with one every 2 ms, otherwise it is decreased with one. Will be cleared when error counter is below 1000. Restart of the unit if the CPU has detected a power out or brown out reset.

Power supply to unit is low. Interuption/glitches in external power supply