Overview; Specifications; Installation Instructions - Altronix PT724A Installation Manual

Altronix models PT724A/DPT724A/PT724AE are extremely versatile 24 Hour 365 Day Event Timers designed
to support a wide range of applications. Such applications include: Home and Building Automation, Security,
Access Control, Lighting Control, Etc. PT724A/DPT724A/PT724AE are equipped with an independently con-
trolled form "C" relay contact that provides many latching and/or momentary operations during a program sched-
ule of your choice. The EE prom memory allows for programming of unit prior to/or during field installation.
Events may be set for single or multiple operations on a daily and/or weekly schedule. The block programming
feature enables repeating an event on any combination of consecutive days. PT724A/DPT724A/PT724AE will
compensate for daylight savings time if desired. Individually selected holiday exceptions can be programmed to
override regularly scheduled events.
Input:
• 12 to 24 VAC or VDC operation.
Relay:
• Form "C" relay contacts are rated
10A @ 120VAC/28VDC.
• Standby current:
Features:
• EE Prom memory protects against loss of
programming due to power failure.
• Accurate crystal controlled clock.
• Momentary and/or Latching Events.
• 50 individually programmed daily/weekly events.
• Block programming capacity can accommodate a
total of 350 events per week.
• 10 programmable Holiday dates.
• "First man in" option.
• Standard or Daylight Savings Time settings.
• Automatic compensation for leap year.
1. Mount PT724A/PT724AE/DPT724A in desired location.
Carefully Review:
Basic Operation
Terminal Identification Table
Push Button Layout and Description
Programming Instructions
2. Connect 12 to 24 volts AC or DC to terminals marked [+ DC – / ~ AC ~].
When using DC carefully observe polarity.
3. Connect 12VDC battery (optional) to terminals marked [+ BAT – / 12VDC].
4. Insert lithium battery (optional/not included. Order part LB2032) in battery holder (Fig. 1, pg. 3) with
the + positive side facing up.
5. Connect devices to be controlled to dry outputs marked [NO, C, NC].
Note: It is important when connecting DC powered electromechanical devices such as Mag Locks, Electric
Strikes, Bells, Relays, etc. to install a catch diode across the pos (+) and neg (–) terminals of the device.
Connect diode as close to the device as possible with the banded side facing the pos (+) terminal.
This will reduce the possibility of interference.
6. Program clock and desired event schedule (see programming instructions pg. 4-6).
- 2 -
10mA (relay off)
50mA (relay on).

Installation Instructions:

Overview:

Specifications:

Visual Indicators:
• Alphanumeric LCD display simplifies
programming.
Battery Backup:
• Built-in charger for 12VDC sealed lead acid
or gel type batteries (Max charge current 100mA).
• Optional lithium battery backup maintains
clock. Order Altronix part # LB2032.
Mechanical:
• PT724A - Timer module.
Board Dimensions (approx.):
3" x 5.25" x 1" (76.2mm x 133.4mm x 25.4mm).
• DPT724A - Timer module equipped with
snap track for DIN rail mount capability.
• PT724AE - Timer module in enclosure.
Enclosure Dimensions (H x W x D approx.):
8.5" x 7.5" x 3.5" (215.9mm x 190.5mm x 88.9mm).
(pg. 3)
(pg. 3)
(pg. 4)
(pg. 4-6)
PT724A/PT724AE/DPT724A