Digital I/O

cancel
Showing results for 
Search instead for 
Did you mean: 

Flyback Diode and NI-9476

Hello, I plan to use 3 channels on NI-9476 to drive relay controller that requires ~420mA, and I just want to confirm that if I can tie all 3 channels to one flyback diode as shown in the diagram below: 

NhiH_0-1690215590863.png

Thank you!

0 Kudos
Message 1 of 2
(482 Views)

No, always place the flyback diode very close to the inductive load and not far away.

 

In this case, use separate flyback diode for each relay, close to its coil.

 

What relay model are you trying to control?

 

Please note that it is not recommended to drive more than 250mA load using a channel as per specs

santo_13_0-1690219049036.png

 

Santhosh
Soliton Technologies

New to the forum? Please read community guidelines and how to ask smart questions

Only two ways to appreciate someone who spent their free time to reply/answer your question - give them Kudos or mark their reply as the answer/solution.

Finding it hard to source NI hardware? Try NI Trading Post
0 Kudos
Message 2 of 2
(467 Views)