3KC3 and 3KC6 transfer switching equipment3KC3 and 3KC6 transfer switching equipment
Continuous operation logic
The figure below shows an example for the control logic of the 3KC3 transfer switching equipment in the case of continuous operation logic:
The following must be observed here:
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To select continuous operation logic, inputs 313 and 317 (switch position 0) must be continuously closed.
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The switching command to position I and the switching command to position II have a higher priority than the switching command to position 0.
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Switching commands I and II have the same priority. The command that is received first (I or II) has priority as long as the command remains active. If the command for the switch to position I is issued at the same time as the command for the switch to position II, the transfer switching equipment remains in the current position and one switching command is ignored.
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If switching commands I and II are not closed, the transfer switching equipment switches to the 0 position.
The following accessories can be used to activate continuous operation logic:
![]() 1 x selector switch, 3SU1002-2BL60-0AA0 (with 3 switch positions I-0-II,) and 1 x holder 3SU1500-0AA10-0AA0
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![]() 2 x contact blocks with one contact element, 3SU1400-1AA10-1LA0
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NOTE
Contact blocks with gold-plated internal contacts must be used.