5.5
Protection and control blocking examples
All of 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 control function commands
blocked.
IED test
Protection working as in “Normal mode” but protection functions are working
in parallel with test parameters.
IED test and blocked
Protection working as in “Normal mode” but protection functions are working
in parallel with test parameters. Control function commands blocked.
The physical outputs from control commands to process are blocked with
IED blocked
and
IED test and blocked
modes. The physical outputs from the protection functions
are not blocked.
The mode of all logical nodes located under CTRL logical device are set with
Control
mode
.
Control mode
is selected via the HMI or PCM600 path
Configuration/
Control/General
. By default,
Control mode
can only be set locally through
LHMI.
Control mode
inherits its value from
Test mode
but
Control mode
”On”,
“Blocked” and “Off” can also be independently set.
Control mode
is also available via
IEC 61850 communication (CTRL.LLN0.Mod).
Table 8:
Control mode
Control mode
Description
On
Normal operation.
Blocked
Control function commands blocked
Off
Control functions disabled
The physical outputs from commands to process are blocked with the
Blocked
mode.
Section 5
1MRS241255 B
Protection and control engineering
66
611 series
Engineering Manual