Local/Remote Control Function Block Control; Function Block; Functionality - ABB RELION 620 Series Technical Manual

Section 3
Basic functions
3.14.2
3.14.2.1
3.14.2.2
128

Local/remote control function block CONTROL

Function block

GUID-FA386432-3AEF-468D-B25E-D1C5BDA838E3 V2 EN
Figure 58: Function block

Functionality

Local/Remote control is by default realized through the R/L button on the front panel. The
control via binary input can be enabled by setting the value of the LR control setting to
"Binary input".
The actual Local/Remote control state is evaluated by the priority scheme on the function
block inputs. If more than one input is active, the input with the highest priority is selected.
The actual state is reflected on the CONTROL function outputs. Only one output is active
at a time.
Table 78: Truth table for CONTROL
CTRL_OFF CTRL_LOC
TRUE any
FALSE TRUE
FALSE FALSE
FALSE FALSE
FALSE FALSE
1) If station authority is not in use, the CTRL_STA input is interpreted as CTRL_REM.
The station authority check based on the IEC 61850 command originator category in
control command can be enabled by setting the value of the Station authority setting to
"Station, Remote" (The command originator validation is performed only if the LR
control setting is set to "Binary input"). The station authority check is not in use by default.
Input
CTRL_REM
1)
CTRL_STA
any any
any any
TRUE any
FALSE TRUE
FALSE FALSE
1MAC504801-IB E
Output
OFF = TRUE
LOCAL = TRUE
STATION = TRUE
REMOTE = TRUE
OFF = TRUE
620 series ANSI
Technical Manual