Siemens SIMATIC ET 200SP IM 155-6 DP HF - Load voltage failure on the BaseUnit BU...D

Interrupts, error messages, diagnostics and system alarms
5.3 Alarms
Interface module IM 155-6 DP HF (6ES7155-6BA01-0CN0)
48 Manual, 10/2018, A5E03916550-AD
5.3.9
Load voltage failure on the BaseUnit BU...D
Load voltage failure
If supply voltage fails on the BaseUnit BU...D, the I/O modules react as follows:
● A remove module interrupt is generated if an I/O module is removed during the failure of
the supply voltage.
● An insert module interrupt is generated if an I/O module is inserted during the failure of
the supply voltage.