The panel constantly resets after auto-learn.
This is a specific dual-addressing fault. Certain combination of devices dual addressing may cause
the panel to think they are a repeater and respond to the responses by constantly resetting.
The following steps should be done to remove this problem.
a. Remove the battery leads and Power down the panel
b. Wait at least 3 mins until all of the internal capacitors have fully discharged
c. Remove the loops cards or cables from the panel.
d. Re-apply the power, Mains first then battery - the panel will stop resetting.
e. Go to the delete device menu in the engineer menu and delete all the repeaters from the
panel.
Locate the dual addressing devices (see below to locate a fault) and fix the problem.
Auto-learn the panel, it should no longer reset, if it does repeat the above and locate any further dual
addressing problem.
If the panel is not in alarm or resetting constantly the other dual addresses can be located by using
the test device in the engineering menu, go to the dual address number – test device and both
devices will light the Led or sound the sounder etc.
Open circuit Positive/Negative.
This means after the auto-learn the panel has detected a break in the positive or negative line. The
most likely causes would be: -
Device wired incorrectly. See wiring diagram.
Base switch opening but the detector not making contact. Ensure the base contacts are correctly
screwed down, and none are damaged. Then ensure the detector is replaced correctly.
A negative break may also be caused by a short at a device in the middle of the loop that the loop
device isolators have detected and dealt with. See short circuit middle below.
If the loop voltage drops (below 18 vDC) the devices may reset causing an open circuit negative.
(There must not be more than 2Km of appropriate properly earthed cable used per loop.) If a faulty
device is suspected it can be seen by linking the loop in the panel and disconnecting the far end of
the loop, see diagram.
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