1MRK 500 124-UEN Section 6
Troubleshooting
Operation Manual 87
Distributed busbar protection REB500
synchronization type
synchronization type
to time master
ismatch Alarm
configured type.
configured
has address configured
which already exists in the
network connected to this
interface
address
RPB Interruption Alarm on BU
interrupted
connection
(see Section 2)
CU is offline (e.g. during a
CU restart)
running again (up to 3
BU is stuck in standalone
mode
RPB Interruption Alarm on CU
process bus links of the
links (see Section 2)
6.2.4 Optical fiber connections faults
Description Possible Cause Corrective Action
No link LED for a
connected BU
Optical fiber defect, or wrong
type
Check, replace optical fibers
No link LED for a
connected station control
system
Optical fiber defect, or wrong
Check, replace optical fibers
connection
not blink
Optical fiber defect, or wrong
type
connection
connections
Wrong IEC103 Configuration
Check IEC103 Configuration