PIR short - Keypad switches off

[RayRohr]

Hi there, I have a new IDS X64 alarm panel. Replaced old one and rewired everything. The system uses a 24VDC 1.5A power supply and 7AH battery.

There are 16 zones and only 13 connected. All NC with tamper and uses 4k7 and 12k EOL resistors. As soon as I connect a 14th PIR, it creates a short and keypad switches off. Tried another PIR and cable, doing the same. When I remove the power from the PIR, keypad switches on again and everything works.

Need some help please, is the power supply the issue?, panel has a 750mA max output/support via the 12v Aux. Is it possible the PIR's, keypad, siren are using 750mA?

Please help
Thank you

[Tradie]

Calculating the power requirements for all the equipment connected to the main bus is fundamental to ensure the reliability and efficiency of the alarm system. This includes factoring in all the components that are daisy-chained directly from the main PCB such as keypads, hubs, and external expanders. Each of these components draws power from the main system, and their cumulative power consumption can add up significantly. For peripherals such as Passive Infrared Sensors (PIRs), a separate power supply can be installed. This setup includes an 18 amp-hour battery to ensure that the peripherals continue to function smoothly even during power outages. The dedicated power supply not only enhances the overall stability of the system but also ensures the longevity of the main PCB by distributing the power load.

The focus of our installations is on the X64 systems, which have proven to be reliable and efficient for various security needs. Many of these systems are wireless, utilizing Xwave2 hubs to facilitate seamless communication between components. The wireless nature of the Xwave2 hubs simplifies installation and reduces the complexity of wiring, making the systems more adaptable to different environments.

I am eager to delve into more detailed discussions regarding the alarm system and CCTV installations. Exploring areas such as enhanced power management, integration of advanced sensors, and the incorporation of the latest wireless technologies will be crucial in advancing our current systems.