Protection And Control Blocking Examples - ABB RELION REX640 Engineering Manual

Section 5
Protection and control engineering
5.7
92
GUID-D765D028-CDAB-44DA-AD6C-AEF8BC84C182 V1 EN
Figure 69: Compare report
Table 6: Acronyms used in a report
Acronym Description
DA Data attribute
DO Data object
IED Intelligent electronic device
LN Logical node
SIG Signal

Protection and control blocking examples

All the relay's logical nodes are set with Test mode. Test mode is selected through one
common parameter via the HMI path Tests/IED test. By default, Test mode can only
be set locally through LHMI. Test mode is also available via IEC 61850
communication (LD0.LLN0.Mod).
Table 7: Test mode
Test mode Description
Normal mode Normal operation
IED blocked Protection working as in Normal mode but ACT
configuration can be used to block physical
outputs to process. Control function commands
are blocked.
IED test Protection working as in Normal mode but
protection functions work in parallel with test
parameters.
IED test and blocked Protection working as in Normal mode but
protection functions work in parallel with test
parameters. ACT configuration can be used to
block physical outputs to process. Control function
commands are blocked.
1MRS759117 A
Protection BEH_BLK
FALSE
TRUE
FALSE
TRUE
REX640
Engineering Manual