The state of the switch is indicated at outputs DCCLOSE_POS, DCOPEN_POS,
ESCLOSE_POS and ESOPEN_POS together with the OKPOS information.
Debouncing and short disturbances in an input are eliminated by filtering. The
binary input filtering timer can be adjusted separately for each digital input used by
the function block. The reporting of faulty or intermediate position of the apparatus
occurs after the
Event delay
setting.
Table 1475: Status indication for a three-position switch with auxiliary contacts in direct control
mode
Status Inputs Outputs
POSITIO
N
DCPOSCL
OSE
DCPOSO
PEN
ESPOSCL
OSE
ESPOSOP
EN
REED DCCLOSE
_POS
DCOPEN_
POS
ESCLOSE
_POS
ESOPEN_
POS
OKPOS
Discon-
nector
closed
1 0 0 1 x 1 0 0 1 1
Discon-
nector in-
termedi-
ate
0 0 0 1 x 0 0 0 1 0
Both
open
0 1 0 1 x 0 1 0 1 1
Earthing
switch in-
termedi-
ate
0 1 0 0 x 0 1 0 0 0
Earthing
switch
closed
0 1 1 0 1
1
0 1 1 0 1
Faulty 0 1 1 0 0
2
0 1 0 0 0
Faulty 0 1 1 1 x 0 1 0 0 0
Faulty 1 1 0 1 x 0 0 0 1 0
Faulty 1 x 1 x x 0 0 0 0 0
Faulty x 0 x 0 x 0 0 0 0 0
x = no difference
The REED input is only supervised during a short time window when earthing switch
has closed and if
Reed contact
setting is set as "Available" in direct control mode.
When a two-position switch type is used, only the corresponding outputs are
enabled. For example, if the switch type is disconnector, the status of the two-
position switch is based only on the connected inputs DCPOSOPEN and DCPOSCLOSE.
Furthermore, the outputs ESOPEN_POS and ESCLOSE_POS are disabled.
Common three-position status is indicated at variable POSITION, regardless of the
switch type. For example, if only a disconnector is available, and the disconnector is
in open state, the open indication equals “both open”.
1
REED input has been detected as closed within time-out and earthing switch is indicated as
closed.
2
REED input has not been detected as closed within time-out and faulty position is indicated.
Control functions 1MRS759142 F
1522 REX640
Technical Manual
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