News:

  • April 17, 2025, 09:23:16 PM

Login with username, password and session length

Author Topic: Noise on BRX Analog voltage input  (Read 697 times)

Garyhlucas

  • Hero Member
  • *****
  • Posts: 408
Noise on BRX Analog voltage input
« on: April 10, 2024, 03:45:04 PM »
We have Gefrans inclination sensor 0-10vdc output to an analog input on a BRX36.  We are seeing the input bounce around so much that a machine won?t run.  My choice would have been 4-20 ma but I bought the sensor the day AD introduced it. Any way to reduce the noise? Maybe a filter cap, inductor?
System is in Romania!  We made a mistake not using shielded cable because it runs through an energy chain along with wiring for a pair of DC servos.

BobO

  • Host Moderator
  • Hero Member
  • *****
  • Posts: 6077
  • Yes Pinky, Do-more will control the world!
Re: Noise on BRX Analog voltage input
« Reply #1 on: April 10, 2024, 03:51:29 PM »
We have Gefrans inclination sensor 0-10vdc output to an analog input on a BRX36.  We are seeing the input bounce around so much that a machine won?t run.  My choice would have been 4-20 ma but I bought the sensor the day AD introduced it. Any way to reduce the noise? Maybe a filter cap, inductor?
System is in Romania!  We made a mistake not using shielded cable because it runs through an energy chain along with wiring for a pair of DC servos.

For onboard inputs you can use the FILTER instruction. Modules can filter on the module itself.
"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO

Garyhlucas

  • Hero Member
  • *****
  • Posts: 408
Re: Noise on BRX Analog voltage input
« Reply #2 on: April 10, 2024, 06:40:38 PM »
We use that function all the time. However I wasn?t the programmer on this one so I don?t know and will have to check on that.
Thanks,