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NFS Supra
Disablement (yellow):
If there are Sounder delays, the Disablement led will be lit together with the Sounders delayed led (EN54/2). However, from Access
level 3 (programmer), it is possible to program that the sounder delays do not light the Disablement led.
-Led On
Delay On/Off key from Access level 2 (the led of the appropriate key will be lit). Check that the yellow Zone and the Sounder
fault/disabled leds illuminate in steady mode. Enable the disabled zones or sounders by pressing the relevant Zone key or the
Sounders Stop key (disablement led will be turned off). Delays can be enabled again, if required.
Test (yellow):
-Led On (flashing slowly in Access level 2): This indicates that a zone is under test. Check the Zone leds illuminated (flashing
slowly with Test led in Access level 2). Press the relevant Zone key (Access level 2) in order to restore its normal status.
General Fault (Yellow):
-Led On:
and the zone leds or Sounder fault/disabled led flashing quickly in order to identify the fault. Fix the fault and press the Reset key
(Access level 2) in order to make the system return to its normal status.
Additionally there are specific fault indicators that provide information on the type of fault.
Earth Fault yellow):
24V.
-Led On:
the earth leakage condition has disappeared, press Reset key (Access level 2) to make the system return to its normal status.
Sounder Fault / Disabled (Yellow):
-Led flashing quickly: This indicates that there is a fault in the sounder circuit due to a short circuit, open circuit or overload. Check
the circuits and the end of line resistance; check also the sounder fuses. Once the fault cause has been cleared, press the Reset
key (Access level 2) to make the system return to its normal status.
-Led On (and Disablement led on too): Sounders are disabled. Enable the sounders by pressing the Sounders Stop key (Access
level 2) until the zone yellow led is off.
HLS-MN-025 v.04

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This led indicates that any zone or sounder output circuits are disabled.
This led indicates that there are zones or sounders disabled or delayed. In order to disable delays temporarily, press the
This led indicates that any zone or sounder output circuits are disabled.
The General fault led is lit when there is a fault in the system or zones.
The fault led illuminates in yellow to indicate that there is a fault in the system. Check the system led indicators that are on
This led indicates that an earth leakage has been detected in zone or sounder circuits, digital input or Aux.
System earth leakage fault. Please contact the installing company. Earth leakages imply a high risk for the system. Once
There is a fault in the sounder circuits or sounders are disabled.
Operation
Installation and Operating Manual
Page 12