Fault records by panel

Reported as an ISOLATOR FAULT with a description. The manual says to use the same method to locate the break (re-run the loop search and check the detailed loop report). In its example, the break is between address 150,…

The manual says the panel's loop isolator monitors the addressable loop for open and short circuit faults, reported as ISOLATOR FAULTS with a description. For a break in the positive wire, it says to locate the cable…

If the loop contents differ from what was expected, the manual lists a cable break as a probable cause. If a system is only wired as a loop, any breaks will be reported and can be located as in section 12.1. If a system…

The manual says some devices are polarity sensitive and will not be seen if the + and - connections are reversed. Look for missing devices in the loop report and check their connections.

The manual says a short circuit in the middle of the loop will usually cause two loop short circuit isolators to activate, and the devices between the isolators go missing because they are no longer powered. The short…

If the panel reports a loop short on side A, the manual says there is a short circuit fault on the loop somewhere between the panel (side A) and the first device with a short circuit isolator on the loop.

If the panel reports a loop short on side B, the manual says there is a short circuit fault on the loop somewhere between the panel (side B) and the last device with a short circuit isolator on the loop.

The manual lists several reasons for the zone fault LED to light: a device has been removed from that zone; a device has been changed for one of a different type; there is a double address in the zone; or a device in…

The yellow General Fault LED flashes when there is a fault on the system. Other fault LED indications may also be present to identify the nature of the fault. The Fault Contact energises and the panel buzzer sounds…

Combined fault/disablement LED for sounder outputs. Illuminates if a sounder output fault is present, and also illuminates (with the General Disablement indicator) when sounder outputs are deliberately disabled via the…

The panel has measured the battery internal resistance and determined it is too high. The batteries will need to be replaced.

Check the battery fuse, check that battery connections are secure, check battery voltage (should be around 26-27V for well-charged batteries), check that the two batteries are connected in series, and check the charger…

The panel has determined that the power supply is not charging the batteries. This is likely to be a problem with the Charger PCB — contact the supplier to arrange a replacement.

Two or more devices may have the same address setting. All devices with the same address will answer at the same time and the panel will not be able to understand the reply it receives. Search the detailed loop report…

Something is shorting to earth on the negative side. Located using the same method as an Earth Positive Fault, but looking for shorts to loop negative rather than positive.

Something is shorting to earth on the positive side (usually through a cable screen). Most earth faults occur on the addressable loop — disconnect all loop connections and reset the panel; if no earth fault is reported…

Check the local input has an end-of-line resistor fitted, check it is the correct value (4.7 kΩ), and check for cable breaks or loose connections.

Check for cable short circuits on the circuit, check the end-of-line resistor is the correct value (4.7 kΩ), and check there are no normally-closed switches connected to the circuit.

Check the local output (sounder circuit) has an end-of-line resistor fitted, check it is the correct value (4.7 kΩ), and check for cable breaks or loose connections.

Check that there are no cable short circuits on the circuit, and check that there are no non-polarised devices connected to the circuit. (The manual lists these two checks for this message.)

Check if mains power is present, and check for 29.5V DC at the PSU cage output.

A system fault is an abnormal microprocessor running condition caused by various unexpected phenomena. The panel attempts to correct itself; while the fault is present the System Fault LED, General Fault LED, General…

Per the manual, the control panel can detect devices set to the same address and will announce a “Double address” fault if it finds any. It cannot tell which devices are double addressed. To help find them, go to access…

Per the user manual, the Reset button is used to reset any activation defined as a latching input type, which includes fire and pre-alarm events. In general, fault events are non-latching and cannot be cleared by…

Per the manual, power is driven from the LOOP OUT terminals and returned to the LOOP IN terminals, where it is monitored for loop continuity. If the loop is open circuit (a cable fault, or a short circuit isolator…

Per the manual, after a configuration is sent back to the panel from the PC (write enable on, then synchronise), the panel shows RECEIVING NEW CONFIGURATION, PLEASE WAIT during the transfer and then the start-up…