I went through the process of the linking zone to com and it behaved as it should(17 to 32) SEM/LEM However I tried a method of taking the power directly from the 12V battery and the PIR worked as it should with no false activation no flicking between active and inactive. My previous assumption that there is an issue with the power supply feeding the PIR was correct, The power for the PIR was always taken from the 12V & COM off the SEM until i tired the direct method as mentioned. I am now under the impression that their maybe a fault with the PSU on the sem not being able to power up the PIR sufficiently or it is intermittent fault on the the PSU output.
I have not been aware of this on my system before as I have not had PIRS attached to the SEM/LEM I have had other equipment that was not dependent on the SEM providing any power
Last edited on Monday Mar 19th, 2018 02:51 am by Swiss-Toni
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