ABB RELION Series, Техническое руководство

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The CB opening (
OPEN_ENAD
) logic is the same as CB closing logic, except that
SYNC_OK
is used only in closing. The
SYNC_ITL_BYP
input is used in both
CLOSE_ENAD
and
OPEN_ENAD
logics.
GUID-AC1D16A3-6BED-4FD4-A5BE-E4079BE5FBB9 V1 EN
Figure 306: Enabling and blocking logic for CLOSE_ENAD and OPEN_ENAD
signals
Opening and closing operations
The opening and closing operations are available via communication, binary inputs or
LHMI commands. As a prerequisite for control commands, there are enabling and
blocking functionalities for both opening and closing commands (
CLOSE_ENAD
and
OPEN_ENAD
signals). If the control command is executed against the blocking or if
the enabling of the corresponding command is not valid, CBXCBR and DCXSWI
generate an error message.
When close command is given from communication, via LHMI or activating the
AU_CLOSE
input, it is carried out (the
EXE_CL
output) only if
CLOSE_ENAD
is
TRUE.
If the SECRSYN function is used in “Command” mode, the
CL_REQ
output can be
used in CBXCBR. Initially, the
SYNC_OK
input is FALSE. When the close command
given, it activates the
CL_REQ
output, which should be routed to SECRSYN. The
close command is then processed only after
SYNC_OK
is received from SECRSYN.
When using SECRSYN in the “Command” mode, the CBXCBR
setting
Operation timeout should be set longer than SECRSYN
setting Maximum Syn time .
1MRS758755 A
Section 9
Control functions
REC615 and RER615 605
Technical Manual