System Fault; Supply Faults; Earth Faults; Sounder Faults - Zeta NPSX1 Installation Manual

PREMIER SX INSTALLATION MANUAL.

9.2 SYSTEM FAULT

A system fault is an abnormal microprocessor running condition due to various unexpected
phenomena
This will result in the panel attempting to correct itself. Should this fault occur, the System Fault LED,
General Fault LED, General Fault relay and fault internal buzzer will be constantly active until the
control keyswitch is turned from off position to control enable position. This should cause this fault
condition to reset. If not, consult your supplier

9.3 SUPPLY FAULTS

A power supply fault is indicative of one or more of the following faults: -
1.Loss of Mains power – Remedy
a. Check mains fuse (Conn 5). Also, check that main power is present.
b. Check charger fuse FS1.
2.Loss of Battery power – Remedy
a. Check battery fuse FS2.
b. Check that battery connections are secure.
3.Low Battery – Remedy
a. Check battery voltage.
4.Wrong Charging Voltage.
The charging voltage should be 28.4V off load at 20
potentiometer VR1
5. Overcharged Batteries.
Remove the batteries and measure the voltage. If it is reading over 27.4 then the batteries
are overcharged. Try to run the panel on batteries only for half an hour or so to try to
discharge the batteries. If this doesn't solve the problem, replacement batteries will be
required.

9.4 EARTH FAULTS

An EARTH fault indicates that something is shorting to earth (usually through the cable screen).
Disconnect the earth screens one at a time to determine the problem line.
(Note: connecting other equipment , eg an oscilloscope , to the panel can give an earth fault)
The voltage between battery –Ve and earth should be 14-16 volts. If it is not, the voltage should
indicate what is shorting to earth.

9.5 SOUNDER FAULTS

Check that the correct END of Line resistor has been fitted. (10K – brown, black, orange, gold)
Check that both fuses are OK (FS4 & FS5 – 400mA QB)
If working on an existing installation, check that the devices are polarised. (See Page 5)
Check cable continuity (remove from panel and measure continuity. Should read 10K)
Approved Document No: GLT.MAN-101
Issue : 1.95 Authorised: GH Date: 09/06/2004
o
C. If it has been altered, reset using
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