Siemens ST950 Plus+ User Manual page 26

ST950 Plus+ User Manual
This warning occurs when, in the LMU General screen, a customer has "RLF2 only cleared by
RFL=1" ticked on this screen.
This warning has been added because the Plus+ Controller may trigger RLM faults during some
power and/or communications scenarios. It has been designed so it shouldn't do this during
'normal' power breaks. However, if some Reds Signals/Nodes are temporarily missing, the
Controller will take the configured RLM actions, so RLM faults are triggered. But by avoiding the
latching those faults will clear automatically and signals to resume normal operations should
those Nodes/Signals reappear.
ST950 Plus+ User Manual Page 26 of 176 Issue 2
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