ORYX202 ORYX204 ORYX208 Conventional Fire Panels
– INSTALLATION & OPERATION MANUAL
PRMAN-0047 ORYX200 S21 Fire Panel Range Rev 02.00 220224.docx
E&OE
- 45 -
◼
Incorrect EOL Resistor
Description
Measurement
Possible Cause
Action Required
Resistance
Voltage
Zone 1 Double
EOL Fault
900
Ω –
2k4
Ω
22.5 V DC
–
25.4 V DC
The input or output is measuring the
indicated voltage or resistance range,
across the negative and positive
terminals.
Ensure correct value EOL is in place.
Zone 2 Double
EOL Fault
24.1 V DC
–
25.6 V DC
(For IS Zone)
Check field device termination and
polarity.
Zone 3 Double
EOL Fault
To confirm the panel’s indications,
Voltage should be measured across
the input or output whilst the field
cabling is connected to the Main
PCB.
If double EOL fault persist after
completing above checks, break zone
cabling at the field devices, in smaller
sections, to reduce the search area.
Zone 4 Double
EOL Fault
Zone 5 Double
EOL Fault
In addition, the resistance should be
measured with the input or output
cabling removed from the Main PCB
(disconnect terminal block).
If the problem persists, please contact
your supplier.
Zone 6 Double
EOL Fault
Zone 7 Double
EOL Fault
Once the resistance measurement
confirms you have a double EOL fault
on the field cabling proceed to
"Action Required".
Zone 8 Double
EOL Fault
Input 1 Double
EOL Fault
900
Ω –
2k4
Ω
0.2 V DC
–
0.5 V DC
If the cable is clear, insert an EOL
across the affected input or outputs
terminals, at the panel, to confirm
that the product is not faulty.
Input 2 Double
EOL Fault
Sounder 1 Double
EOL Fault
900
Ω –
2k4
Ω
0.2 V DC
–
0.5 V DC
If the problem persists, please
contact your supplier.
Sounder 2 Double
EOL Fault