ABB RELION REX640 - Alarms generation

CL_COMMAND or
Synchronize CB
SYNC_INPRO
SYNC_OK
CLOSE_CB
t = Maximum Syn time
Figure 859: Determination of closing signal CLOSE_CB when Multiple command is
set to "On"
The SYNC_INPRO output is active when the close command (CL_COMMAND or
Synchronize CB ) is in progress and it is reset when the close command is reset
or Maximum Syn time has elapsed.
If the closing conditions are fulfilled during a permitted check time set with
Maximum Syn time , ASGCSYN gives synchro check permission to the breaker
control function block after the closing command signal is delivered. The simplified
configuration block diagram of ASGCSYN with CLOSE_CB to the breaker control
function block is shown in Figure 860 .
I
ASGCSYN
CBXCBR
CLOSE_CB
AU_CLOSE
EXE
_CL
SYNC_OK
SYNC_OK
Figure 860: Simplified configuration block diagram of ASGCSYN in auto
synchronization mode operation
Alarms generation
In the synchro check command and auto synchronization control mode operation,
there are alarms for failed closing attempt (CL_FAIL_AL) and for a command signal
that remains active too long (CMD_FAIL_AL).
In the auto synchronization control mode, the closing command generation is
activated either by the command input CL_COMMAND or by the command parameter
Synchronize CB .
1MRS759142 F
Control functions
REX640
Technical Manual
1567