User guide

AN24 & AN28 Annunciators Instruction Manual

No Lock-In Sequence Option

ISA sequence option 4 no lock-in, may be added to any alarm type.

Momentary alarms will clear without the ACK pushbutton. Sequences A,

F1A, F2A, and F3A will automatically clear any momentary alarm.

Sequences M, F1M, and F2M will clear all momentary alarms when the

RESET pushbutton is used, regardless of what channels have

previously been acknowledged with ACK.

Selecting No Lock-In Operation

1. Press and hold ACK and RESET for 3 seconds until all LEDs

cycle, then release.

2. Press RESET within 3 seconds of release while LEDs cycle.

3. Press RESET within 3 seconds while LEDs blink.

4. Press the ACK pushbutton three times until LED 4 is either off

or brightly on.

5. Press the RESET pushbutton to turn LED 4 off to disable the

no lock-in option or on to enable the no lock-in option.

6. Press ACK to accept the option setting.

7. Press and hold ACK for five seconds to return to operation.

The green power LED will blink quickly to indicate the unit is in the

advanced programming mode. The unit will automatically leave setup

mode if no pushbutton is pressed for 3 minutes.

Note: LED 1 and 2 are used for relay fail-safe setup (see page 24), and

LED 3 is used for silence pushbutton enable/disable (see page 27).

The unit will automatically leave setup mode if steps 2 and 3 are not followed.

Reset to Factory Defaults

1. Hold the ACK and RESET pushbuttons for 3 seconds until all

red LEDs cycle. Release once the LEDs begin to cycle.

2. Press and hold the RESET button for 5 seconds. If the RESET

button is not pressed within 3 seconds of releasing ACK and

RESET, the unit will return to run mode without reset.

3. Reset the 4-position switch on the rear of the control to the

indicated default settings.

Factory Default

Switch Positions