C-TEC XFP fault codes

The XFP earth-fault monitoring has detected an abnormal connection between the fire system and earth.

XFP: fault conditions

Per the user manual, if part of the fire alarm system fails (for example detector failure or a wiring fault), one or more of the panel's fault indicators flash, the internal sounder (if enabled) pulses, and the display shows an appropriate fault message; for a faulty manual call point the zone it is on is shown. Pressing the more information button shows more detail, and for device-specific faults the actual device is shown: the manual's example shows a Reception Call Point with the status Device Missing, and pressing more information again shows the device's unique ID code and address location for service engineers. If there is more than one fault the top right of the display reads More and the faults can be scrolled through. The manual tells the designated responsible person to mute the internal beeper (new faults restart it), note the nature of the fault in the log book, and take steps to have it rectified.

XFP: General Fault indicator

Yellow General Fault indicator on the XFP: the manual says it flashes yellow when there is a fault condition on the panel, and will always be lit in conjunction with at least one other fault LED.

XFP: Intensive Device Monitor (engineer function)

Per the manual, this function monitors one addressable point under intensive, repeated polls from the panel, and reports how many good and bad polls occur between the panel and the device, which can help pinpoint loop wiring or communication faults and faulty devices. While it runs, the panel suspends all other system activity, so fires are not flagged and the manual says to use it with care. The engineer selects the loop, the device address and an output bit sequence, so that a device can be monitored while in a particular output state (for example when an I/O unit reports faults only after an output channel is asserted).

XFP: Blink Detector LEDs (engineer function)

Per the manual, this engineering function momentarily asserts the LED outputs of loop devices in one continual sweep, and is useful for locating open or short circuit faults on the loop wiring. LEDs are asserted step by step (about one second each), and the test can be run from End A, End B or both ends. In the manual's example for an open circuit between devices 17 and 18, End A lights devices 1 to 17 and End B lights devices 18 to 23, identifying the break between 17 and 18. For a short circuit, End A lights devices 1 to 14 (the isolator between 14 and 15 having operated) and End B lights devices 21 to 23 (the isolator between 20 and 21 having operated), identifying a short somewhere between the two isolators containing devices 15 to 20.

XFP: Power Supply Fault indicator

Yellow Power Supply Fault indicator on the XFP: the manual says it is lit yellow when the panel's power supply or mains has failed, or the panel's standby battery is in poor condition.

Power supply fault

The XFP power-supply monitoring indicates a supply, battery or earth-monitoring problem.

XFP: Sounder Status indicator

Sounder Status indicator on the XFP: the manual says it flashes yellow when a fault is detected on either of the panel's two conventional sounder circuits, or if there is a sounder disablement anywhere on the system.

XFP: System Fault indicator

Amber System Fault indicator on the XFP: the manual says it is lit amber when a system error, such as a microprocessor fault, occurs, and it remains lit even if the panel automatically clears the fault.