Inputs Outputs
ITL_BYPASS ENA_DCCLOSE BLK_DCCLOSE DCCLOSE_ENAD
ENA_DCOPEN BLK_DCOPEN DCOPEN_ENAD
ENA_ESCLOSE BLK_ESCLOSE ESCLOSE_ENAD
ENA_ESOPEN BLK_ESOPEN ESOPEN_ENAD
0 = False 1 = True 1 = True 0 = False
1 = True 0 = False 0 = False 1 = True
1 = True 0 = False 1 = True 0 = False
1 = True 1 = True 0 = False 1 = True
1 = True 1 = True 1 = True 0 = False
However, the enabled outputs also depend on the actual position of the switch,
according to
Figure 832
and if any motor operation is ongoing. Internal blocking
based on switch position or motor in progress always overrides the enabled output
regardless of the status of enable, block and interlock bypass inputs.
For two-position switches, the enabling outputs of the opposite switch type are
disabled regardless of the input status. For example, if the switch type is earthing
switch, DCCLOSE_ENAD and DCOPEN_ENAD are forced to FALSE.
Operation of the three-position switch is permitted only when the circuit
breaker is in open position. The closed circuit breaker information can be
connected to the BLK inputs in Application Configuration.
9.2.4.4 Various operations
The required operation command is available via communication, binary inputs or
LHMI. As a prerequisite for control commands, there are enabling and blocking
functionalities for all the operations. If the control command is executed against
the blocking or if the enabling of the corresponding command is not valid, the
function generates an error message. If the control is inhibited due to interlocking
conditions the pulse output CTL_ITL_BLKD is activated. The length of the pulse is
defined by the
Interlocking Pls Len
setting. The command operations are requested
through binary inputs AU_DCOPEN, AU_DCCLOSE, AU_ESOPEN and AU_ESCLOSE. The
requested operation is possible provided the apparatus is not blocked by the
interlocking logic and no other previous request is active.
When the function block is selected for performing any of the operations locally
from the HMI, the output SELECTED is activated. Once the function is selected, the
command for execution of operation should be issued before
Select timeout
time
lapses.
The function contains two operation counters: disconnector counter
Operation
counter DC
and earthing switch counter
Operation counter ES
. The first one
indicates each disconnector opening state and the latter one indicates each
earthing switch opening state. The counter values are resettable and writable and
stored in a nonvolatile memory.
Output INPRO indicates any active motor operation, including braking and pause
operation.
1MRS759142 F
Control functions
REX640
Technical Manual
1525
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