Optical Fiber Connections Faults - ABB REB500 Operation Manual

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6.2.4
Operation Manual
Distributed busbar protection REB500
4. Invalid Time Stamps
5. Hardware Mismatch Alarm
6. IP address conflict
7. RPB Interruption Alarm on BU
8. RPB Interruption Alarm on CU

Optical fiber connections faults

Description
1. Process Bus:
No link LED for a
connected BU
2. IEC 61850 Bus
No link LED for a
connected station control
system
3. IEC 103 RX/TX LED dose
not blink
Wrong time
synchronization type
and/or parameter
Wrong time master
configuration
Wrong LWL connections
Wrong hardware installed
Wrong hardware type
configured
Ethernet interface LAN0
has address configured
which already exists in the
network connected to this
interface
Process Bus connection
interrupted
CU is offline (e.g. during a
CU restart)
BU is stuck in standalone
mode
At least one of the two
process bus links of the
CU is interrupted
Possible Cause
Optical fiber defect, or wrong
type
Optical fiber wrong
connection
Optical fiber defect, or wrong
type
Optical fiber wrong
connection
Optical fiber defect, or wrong
type
Optical fiber wrong
connection
Wrong IEC103 Configuration
Section 6
Troubleshooting
Check time
synchronization type
and/or parameter
Check time master
configuration
Check LWL connections
to time master
Replace Hardware with
configured type.
Change the configuration
Change configured IP
address
Check process bus
connection
(see Section 2)
Wait until CU is up and
running again (up to 3
Minutes)
Restart the BU
Check both process bus
links (see Section 2)
Corrective Action
Check, replace optical fibers
Check connection
Check, replace optical fibers
Check connection
Check optical fibers
Check optical fiber
connections
Check IEC103 Configuration
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