Smoke Sensor Connected to KC868-AI

[fdcemb5]

I connect the Smoke sensor to the KC868-AI, to input 3, the smoke sensor is constantly turn the input On. The sensor's 2 LED are constantly constantly green. I introduced smoke flame to the sensor but the green light still remains green and the input is turned on. This behavior is wired. Any help what is happening.

The Sensor is connected to pin 1+ve and pin 2 -ve, pin 3 to KCOM, and pin 4 to AI input pin 3.

[admin]

take a full photo how you wire.