DA560: Three-door normally-closed interlock
The DA560 monitors the state of 3 doors. This unit is microprocessor-controlled for greater functionality. The unit can be supplied with optional sets of change-over contacts for timer alarm and violate outputs.
The timer alarm contacts change-over if a door, having been opened, is not closed in a pre-determined time. The time is user-selectable (see example).
The violate contacts change-over if more than one door is open at a time (e.g. if a closed door is forced while the other door is open). 12V DC operation.
Ordering information
Example of DA560 operation:
Three-door, normally-closed interlock.
The DA560 locks the remaining two-doors when one of the three is open. In this example, the button for door A is pressed.
Controls for doors B & C are tested. If not released, then monitors for door B & C are tested. If secure, contacts for door A are operated for time set by your controller. During this time a signal prevents B & C from operating. While door A is open the monitor also prevents B & C from operating. Doors B & C cannot be released until door A release times out and door A is secure.
Violate: Violate contacts signal if more than one door is open at any one time.
Time-out: Timer contacts signal if a door is held open for more than the pre-set time.
Ordering information
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