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コントロールユニット Dantel A11-46017-01のPDF インストレーション＆オペレーションマニュアルをオンラインで閲覧またはダウンロードできます。Dantel A11-46017-01 16 ページ。 Summary audible alarm module

CIRCUIT DESCRIPTION

46017-0398 <90-00006>

Precedence and Timing Circuit

The precedence and timing circuit receives alarm signals from

the OR'd logic and sets the alarm group precedence (Alarm

Group 2 always has precedence). This provides two advantages:

♦

It prevents more than one alarm at a time from turning on

the audible alarm

♦

It provides a different output signal for each alarm group:

Group 1 - two seconds on, one second off

Group 2 (with precedence) - one second on, one

second off

Alarms can be acknowledged automatically after a time-out of 1,

4, 8 or 16 minutes. The time-out disables the audible alarm,

turns off any NEW alarm LEDs, and releases relays K1 and K3.

After the time-out period, any new alarms will reactivate the

relays and audible alarm, and restart the timer. When the time-

out function is not used, the relays and audible alarm remain

active until you acknowledge the alarms.

Audio Driver and ACO

When a NEW alarm comes in, the output from the precedence

and timing circuit turns on the audio driver. The audio driver

powers the audible alarm, and the sound alerts service person-

nel of the alarm condition.

On the front panel an ACO (Alarm Cut-Off) switch shuts off the

audible portion of the alarm reporting. A front panel LED

remains on as long as the ACO switch is on. This LED serves to

remind service personnel that the audio has been shut off and

they will not hear subsequent alarms.

Power Supply

The power supply operates on -21 to -56 VDC input power. It

supplies regulated +5 VDC as well as +12 and -12 VDC power to

the 46017 module's circuits.

AGE