[Daniel Lee]

I recently installed a Siemens HTRI-R (Single Input Interface Module with Relay) in my fire alarm system, but I’m encountering some issues with its functionality. The relay doesn’t seem to be activating properly when triggered. What could be the possible causes for this problem, and how can I troubleshoot it?

[Khris James]

First, ensure that the wiring connections to the module are correct and secure. Verify that the input signal to the module is within its specified range and that the module is receiving power. If everything seems fine with the connections and power, check the programming of the module to ensure it’s configured correctly to activate the relay upon receiving the input signal. If all settings are correct and the issue persists, it’s possible that the module itself may be faulty and may require replacement or further inspection by a qualified technician.

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