Ampac LoopSense Installation And Commissioning Guide

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LOOPSENSE EN54 INSTALLATION & COMMISSIONING
12.2 Trouble Shooting LoopSense
 Resolution of all suspected faults MUST only be carried out by suitably qualified technical
operatives.
Problem
Solution
No Mains Power
Check mains Fuse
Power LED flashing
Check output voltage it should be set to 27.2V.
Low = (less than 26.5V )
High = (greater than 28V )
Check the battery has been connected properly
Earth Fault LED illuminated
Check all input and output cabling and wiring assemblies
for short to ground
System Fault LED illuminated
Ensure correct panel configuration
Check all connections for loose wiring
RS485 Communication Loop not
working
Refer to LCD. This may identify where there is a break in
the communication line
Can not access a menu
Incorrect Password entered
Forgotten Password
Ring AMPAC
Alarms Status
Make sure you have a 10KΩ EOL resistor fitted and a
diode (1N4004) in series with any sounders
12.3 Trouble Shooting SmartTerminal
Problem
Solution
Normal Supply LED not illuminated
Check supply voltage it should be set to 27.2VDC.
Nominal fault voltages are; Low = (< 18VDC ) High = (>
28VDC )
FACP Earth Fault LED illuminated
Check all input and output cabling and wiring assemblies
for short to ground
FACP System Fault LED
illuminated
Ensure correct panel configuration
Check all connections for loose wiring
RS485 Communication Bus not
working
Refer FACP LCD. This may identify where there is a break
in the communication line. Check the SmartTerminal
Diagnostic Config LED is flashing. If not the FACP is
not communicating with the SmartTerminal. Check
the RS485 cabling. If flashing check the
SmartTerminal address.

Ampac LoopSense Specifications

General

Brand	Ampac
Model	LoopSense
Category	Control Panel
Language	English