User guide

AN24 & AN28 Annunciators Instruction Manual
4
QUICK SETUP GUIDE
The following overview details how to set up the annunciator for most
common uses.
Alarm Selection
The two most common alarm types are ISA A and ISA F2A. Select the
alarm type using the four-position switch on the rear of the unit above
the signal connector. For complete sequence details, see page 31.
ISA A ISA F2A
NO/NC Inputs
Each input can be set for normally open (NO) or normally closed (NC)
contacts. Each input channel is programmed individually. The default
setting is for all inputs to be NO.
To set inputs to NC:
1. Press and hold ACK and RESET for 3 seconds until all LEDs
cycle.
2. Press ACK within 3 seconds of release. All LEDs will blink. If
ACK is not pressed within 3 seconds the unit will return to run
mode.
3. Press ACK again within 3 seconds of release. If ACK is not
pressed within 3 seconds the unit will return to run mode.
The LED for the channel being programmed will display brightly on or
off. All other channel indication LEDs will be at low intensity to indicate
programming mode.
4. Press the RESET pushbutton to turn LED 1 off for a NO input,
or on for a NC input for channel 1.
5. Press ACK to accept the input type and program channel 2.
6. Repeat steps 4 and 5 for all input channels.
7. Press and hold ACK for five seconds to return to normal
operation with the programmed input types.