ABB RELION REB500 Communication Protocol Manual page 31

1MRK 511 450-UEN Rev. C
Source system state
Source signal
All BUs connected
41505_Isolator alarm
41830_Switch inhibit
41815_Diff. current alarm
Table 14:
Source system state
Source signal
BU disconnected
HW configuration mismatch
Analogue Part Failure
26810_DR memory full
21810_Loss of supply voltage
Permanently blocking
Legend for Source Information status of LLN0.Health and LPHD.PhyHealth:
T→W if status= true (T) → result= Warning (W)
F→W if status= false (F) → result= Warning (W)
T→A if status= true (T) → result= Alarm (A)
F→A if status= false (F) → result= Alarm (A)
Distributed busbar protection REB500
Communication protocol manual IEC 61850
Source of BU health
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LLN0.Health
F→A
T→A
T→A
T→A
LLN0.Health LLPHD.PhyHealth
T→A
T→A
T→A
T→W
T→W
T→A
Section 4
IEC 61850-8-1
LPHD.PhyHealth
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