Hi,

I am wiring into a DVR so that when a camera detects movement at night the lights come on as the light don't have built in PIR'S

I was originally told the relay on the back of the DVR would be Normally Open so I worked out the circuit around this (see drawing)

I have been informed today that the realy is infact normally closed and I now struggling to see how I am going to do this.

I am using a 24v AC to 240V contactor for the lights. My orignal NO circuit plan is shown on the image attached.


Any help would be much appreciated

Chris

 

Easiest solution is wait to see the relay. Maybe it has both NO and NC contacts.

Second, is the relay control 24V AC or 24V DC?

John

 

The relay is purely a NC relay. This is for security reasons in the event of someone cutting the cable.

The power supply is 24v AC

 

Re jpanhalt's question...What is the voltage of the relay on the back of the DVR...and is it AC or DC?

Ken

 

YOu can add Another relay which is n/o