Alarm And Event List Entries - ABB RELION REB500 Operation Manual

1MRK 500 132-UUS Rev. B
7.2.3

Alarm and Event list entries

Description
1 General alarm
CU/BU
2 Differential current
alarm CU
3 Isolator alarm BU
4 Invalid Time Stamps
5 Hardware Mismatch
Alarm
6 HW Failure
7 IP address conflict
8 RPB Interruption
Alarm on BU
9 RPB Interruption
Alarm on CU
10 X1 Connection
Interruption Alarm
on BU
11 X1 Connection
Interruption Alarm
on CU
12 X1005 Connection
Interruption Alarm
on CU
Distributed busbar protection REB500
Operation manual
Possible Cause
Check Section 7.2.4
Wrong BU address
CT circuit fault
Busbar image error
Hardware failure
Wrong binary connection to auxiliary contacts
Wrong battery voltage configured
Hardware failure
Wrong time synchronization type and/or parameter
Wrong time master configuration
Wrong LWL connections
Wrong hardware installed
Wrong hardware type configured
Defect HW module
Ethernet interface LAN0 has address configured
which already exists in the network connected to
this interface
Process Bus connection interrupted
CU is offline (for example, during a CU restart)
BU is stuck in standalone mode
At least one of the two process bus links of the CU
is interrupted
BU X1 not connected to process bus
BU X1 not connected to process bus
CU X1005 not connected to process bus
© 2020 - 2022 Hitachi Energy. All rights reserved
Troubleshooting
GUID-74496126-BC60-41E1-B3A4-9D3A071593E8 v4
Corrective Action
Check Section 7.2.4
Correct BU address
Check Section 7.2.5
Check disconnector image
Replace CU/BU
Check connection diagrams and
connections to the auxiliary
contacts
Correct setting (setfile)
Replace BU
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
Replace defect HW module
Change configured IP address
Check process bus connection (see
Section 3)
Wait until CU is up and running
again (up to 3 Minutes)
Restart the BU
Check both process bus links (see
Section 3)
Check process bus connection (see
Section 3)
Check process bus connection (see
Section 3)
Check process bus connection (see
Section 3)
Section 7
99