ABB Relion REB500, Operation Manual

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7.2.5 Electrical connection faults
GUID-A5361C57-FFF3-433C-8405-1A0F36073874 v1
Description Possible Cause Corrective Action
1 Binary inputs on
CU/BU do not work
Wrong battery voltage
configured
Correct setting (setfile)
HW Failure Replace CU/BU
2 Binary Output do not
work
Blocking inputs of the IED set Reset blocking inputs
Hardware failure Replace CU/BU
3 Wrong current or
voltage values
CT VT settings Check CT VT settings
Wrong CT/VT connections Check connection diagram
4 Analogue
measurement
supervision alarm
Wrong CT connections Check wiring of BU analogue
inputs
Bay Unit (analogue part) is
defective
Replace BU
7.3 Diagnostic (DIA) system - error handling
GUID-5313E659-C27A-47D3-BA40-4D1416A54682 v2
The Error Handling detects the start-up and repetitive error causes listed under Table 25 . If
one of these errors/failures is detected by a target (CIM, CPC or BU) the permanently blocked
state (see Table 26 ) is activated on the particular target with the following effects:
• The target is running and can be accessed by the HMI500.
• All protection functions (subsystems) are blocked and will not be processed.
• The target will show the corresponding alarms and sent distinct Major Error events (see
Section 4.5.8 ).
The permanent blocking state can only be reset by the LHMI menu on the affected target:
Clear/Reset Permanent Blocking
Table 25: Start-up and repetitive error causes
Alarm Event Detection
setting
Description
Version check
failed
Major_Error 013
once
2)
In case the target version does not match the version
of the CU CIM target, the target blocks permanently
License check
failed
Major_Error 014
once
2)
In case the license check during start-up failed (that
is some features are activated that are not licensed
on this target), the target blocks permanently
Repetitive BBP
blocked
Major_Error 016 30 per 600 sec If a Repetitive BBP blocked alarm is activated, the
target blocks permanently
Repetitive BFP
blocked
Major_Error 017 30 per 600 sec If a Repetitive BFP blocked alarm is activated, the
target blocks permanently
Repetitive Diff
Current Alarm
Major_Error 018 60 per 3'600
sec
If a Repetitive Diff Current Alarm is activated, the
target blocks permanently
Repetitive
Invalid BU
Currents
Major_Error 019 30 per 60 sec If a Repetitive Invalid BU Currents alarm is activated,
the target blocks permanently
Repetitive
Output Relays
blocked
Major_Error 020 30 per 600 sec If a Repetitive Output Relays blocked alarm is
activated, the target blocks permanently
Repetitive BU
restarts
Major_Error 021 3 per 600 sec In case of Repetitive BU restarts, the target blocks
permanently
Table continues on next page
Section 7 1MRK 500 132-UEN B
Troubleshooting
92 Distributed busbar protection REB500
Operation manual
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