7228: DC bus: Nominal voltage detection: High inrush current

Info: Voltage boost factor
Data type: REAL

Description:
Runtime error if the DC bus voltage increases by a factor greater than 1.283 (= 1/(0.9*sqrt(3)/2)) when closing the main relay (see INFO).

Reaction:
None.

Cause/Remedy:
The module is operated outside the specifications:
- The switch-on interval is too short
- The DC bus capacitance is too large
- The Ambient temperature is too high.

Short-circuit in the DC bus
External charging circuit has failed
Paralleled power supply module has failed