Siemens SENTRON Manual page 127

The 3KC4 and 3KC8 transfer switching equipment is switched over by a pulse to a position
and remains in this position until a new pulse occurs:
● Contact 312 must be short-circuited with contact 317 and the corresponding PIN (I or II or
O) so that a transfer can occur. Contacts 312 and 317 can be short-circuited with the
3SB3000-2KA11 toggle switch in conjunction with a contact block with a 3SB3400-0BA
contact element.
● To initiate a transfer for the switch positions (0, I, II), a pulse command with a duration of
at least 60 ms is required. Each command can be executed by the combination of one
3SB3000-0AA11 pushbutton + one contact block with 3SB3400-0BA contact element.
● Commands I and II take priority over command O.
● The OFF position has priority over all commands and also functions when contact 312
(activate remote mode) is not connected. This causes the switch to change to position O.
The OFF command can be executed with the 3SB3000-2KA11 toggle switch in
conjunction with a contact block with 3SB3400-0BA contact element.
The following accessories can be used to activate the impulse logic:
2 x toggle switch (with
2 switch positions 0-I),
3SB3000-2KA11
Note
Contact blocks with gold-plated internal contacts must be used.
Manual, 08/2017, L1V30368969104A-02
5 x contact blocks with
one contact element,
3SB3400-0BA
Operation
7.3 Remote mode
3 x pushbuttons,
3SB3000-0AA11
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