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INSTALLATION & COMMISSIONING MANUAL - REVISION 1.0 - 19.FEB.2007
CONTENTSCONTENTS
ADVANCED
FUNCTIONALITY
TROUBLESHOOTING
a) SAM does not program
If during the course of programming a SAM, the new address is not programmed in the module, verify
that the connections to both the loop and the conventional device are correctly made. Confirm supply
polarity of the conventional device. Always follow manufacturer’s instructions. Check loop voltage at
the SAM terminals followed by a verification of the conventional device voltage, measure voltage
across the supply wires (black & red). In normal operation it should always be greater than 16 V DC.
Verify the condition of the whole system in particular supplies (auxiliary and loop), earth leakage, loop
length too long, loop with a short or open circuit, panel and sub-panel communications. If all of
these are OK then do a system reset after which you should verify, using function 7.1, if there are
devices with duplicated address. If there are, clear those addresses and reprogram SAM’s that
previously had identical addresses.
In the eventuality that one SAM does not program but there is no evidence of two devices having
identical addresses after a system reset has been performed, clear the last programmed address using
function 6.4.3 and reprogram SAM. If that does not solve problem replace SAM module. Remember
that a duplicate address fault will only show with ASET mode disabled.
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b) SAM with duplicate addresses
In an installation with SAM’s, should there be a fault of 2 devices or more with the same address
(duplicate address fault) two actions can be taken:
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1) CLEAR LOOP. Clear the loop where some SAM’s have duplicate addresses. See function
6.4.2. This action should only be applied when in a brand new installation where all SAM’s
should have been blank (no address programmed).
2) Alternatively the duplicated address can be erased using function 6.4.3
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Reset the panel and verify, using function 7.1, the offending address and henceforth the associated
FAULT condition has disappeared. Re-program cleared devices. Repeat procedure until fault
disappears. If after the third time the address clearing procedure has been repeated the fault persists,
replace those SAM’s with have duplicate addresses.
It should be observed that this verification can only be performed when ASET mode is disabled, since
the fault condition where 2 devices have the same address, is not shown when in this particular mode.
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