Altronix AT4B Installation Instructions Manuale Utente Scaricare il pdf (Pagina 2)

Overview:

These units 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.

AT4/AT4B is equipped with four independently controlled form “C” relay contacts that provide many latching and/or

momentary operations during a program schedule 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. AT4/AT4B

will compensate for daylight savings time if desired. It automatically adjusts for leap year. Individually selected holiday

exceptions can be programmed to over-ride regularly scheduled events.

Specifications:

• 12 to 24 volts AC or DC operation.

• Stand-by current: 20mA with relays off combined with 40mA for each relay on.

• Four (4) Form “C” relay contacts are rated 10amp @120VAC/28VDC.

• Each relay operates independently.

•

EE Prom memory protects against loss of programming due to power failure.

• Accurate crystal controlled clock.

• Momentary and/or Latching Events.

• 254 individually pro

grammed daily/weekly events.

• Block programming capacity can accommodate a total of 1778 events per week.

• 254 pro

grammable Holiday events.

• “First man in” option.

• Alphanumeric LCD display simplifies programming.

• Standard or Daylight Sa

vings Time settings.

• Automatic compensation for leap year.

• Built-in charger for 12VDC sealed lead acid or gel type batteries

(Max char

ge current 300mA).

• Lithium battery backup maintains clock (Altronix part # LB2032).

• User friendly programming.

Enclosure dimensions: 12.25”H x 7.75”W x 4.5”D

AT4B board level product. Board dimensions (approximate): 7”H x 5.5”W x 1.2”D

Installation Instructions:

1. Mount AT4 enclosure in desired location.

Carefully Review:

Basic Oper

ation

(pg. 3)

erminal Identif

ication

able (pg. 3)

Keyboard Layout and Description (pg. 4)

Programming Instructions (pgs. 4-6)

2. Connect 12 to 24 Volts AC or DC to terminals marked [-DC+]. (when using DC carefully observe polarity).

3. Connect 12VDC battery (optional) to terminals marked [BAT-] and [BAT+] .

4. Insert lithium battery (not supplied or required. Altronix part# LB2032) in battery holder as shown in

(Fig. 1, pg. 4).

ith the (+) positi

e side f

acing up.

Note: Lithium Battery (LB2032) must only be installed after initial power up of AT4/AT4B.

5. Connect de

vices to be controlled to dry outputs marked RLY1 [NC, NO, C] - RLY4 [NC, NO, C]

Note: It is impor

tant w

hen connecting DC po

wered 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 (

Programming Instructions pg. 4-6).

AT4/AT4B - Annual Event Timer

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Altronix AT4B Installation Instructions Manuale Utente Pagina 2

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