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HPT724 Installation Document P/N 52765:A 1/25/06
NOTE:
When connecting DC powered electromechanical devices such as Mag Locks, Electric Strikes, Bells, Relays, etc. install a catch diode
across the positive (+) and negative (-) terminals of the device. Connect diode as close to the device as possible with the banded side facing the
positive (+) terminal. This will reduce the possibility of interference.
4 Basic Operation
The HPT724 controls an independently operated dry form “C” relay output. Relay can be programmed to: turn on
(latch), turn off (release latch), or pulse (momentary toggle) at a specified time and day (this is referred to as an event).
Events are programmed via the push buttons and LCD display. Events may be programmed to occur on any day of the
week at any time. In addition, events may be repeated at a specific time on two (2) or more consecutive days (i.e. M-F,
Sun -Th, etc.). Multiple combinations of individual and block events may be programmed. Holiday exceptions are
individually selected by date and will override all regularly scheduled events.
The four (4) output relay modes consist of:
Relay OFF -- De-energizes the relay until a relay ON event is detected.
Relay ON -- Energizes the relay until a relay OFF event is detected.
Disable -- Used to cancel an existing programmed event.
Pulse -- Momentarily energizes the relay for a selectable time period of 1 to 15 seconds.
(Time is displayed in 24 hour military format.)
5 Terminal Identification Table
NO
C
NC
Dry contact output used to switch controlled devices. When these
relays are energized (ON) the NC and C terminals are open and the
NO and C terminals are closed. When this relay is de-energized
(OFF) the NC and C terminals are closed and the NO and C terminals
are open.
+ DC --
~ AC ~
AC or DC input 12 to 24 volt. When using DC, carefully observe
polarity.
+ BAT --
12VDC
12 VDC standby battery input (battery leads provided).
FM
When this terminal is connected to DC neg. (-), the “First Man In”
feature is enabled. The relay will remain in its present position until
the connection is terminated. At that time the relay will resume normal
operation and latest scheduled events will occur.
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