Device Isolated; Supply Healthy; Systems Fault; Processor Fault - Kidde Fire Protection ANTARES Manual

2.3.2 Device Isolated

The DEVICE ISOLATE LED is controlled via the keypad. Any loop device can be isolated or
de-isolated as required, refer of the Operational Description Section. The DEVICE ISOLATE
LED will be illuminated as long as there is one or more devices isolated. The devices isolated
condition is also indicated by the LCD/VFD display as per section 1.4.15. Whenever the
DEVICE ISOLATED LED is illuminated the buzzer will beep every 20 seconds as a reminder.

2.3.3 Supply Healthy

The SUPPLY HEALTHY LED indicator works in conjunction with the SYSTEM FAULT LED.
Under normal conditions the green SUPPLY HEALTHY LED should be illuminated and the
amber SYSTEM FAULT LED should be extinguished. When any supply fault condition exists
the SUPPLY HEALTHY LED should be extinguished and the 'system fault' illuminated. Hence
under no circumstances should there be no LEDs illuminated. The fault condition when it occurs
will generate an internal buzzer and the LCD/VFD will also confirm the fault, (see section 1.6).
The buzzer can be silenced by the SILENCE ALARMS push-button.
2.3.4 System Fault
The SYSTEM FAULT LED indicator is used to indicate the following system faults:
1. Supply fault. As outlined above any supply fault extinguishes the SUPPLY HEALTHY
LED and illuminates the SYSTEM FAULT LED.
2. Any data check error will illuminate the SYSTEM FAULT LED.
3. Any fault condition, i.e. device fault etc., also causes the SYSTEM FAULT LED to be
illuminated.

2.3.5 Processor Fault

The main processor card is fitted with a watchdog circuit. This must be continually addressed
by the microprocessor. If, due to a malfunction, this does not occur the watchdog will time out
and the microprocessor will receive a reset which should return it to correct program operation.
This malfunction will be indicated by the separate PROCESSOR FAULT LED and by a
separate internal sounder. The reset switch for these indications is located on the main processor
control/display board.
TM0064 Page 34 of 91 Issue 2.01