JozefSVK Posted February 19, 2021 Report Share Posted February 19, 2021 Hi all Is it possible to connect current type and voltage sensor types together ? I need connect feedback from valve to my plc analog input. Can I connect black cable (4) to CM2 (23) and brown (1) to my Analog input 0 (21). On Analog input 1 I have voltage type sensor. Will it work or I should use both current type sensors ? Thank for you answers. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted February 20, 2021 MVP 2021 Report Share Posted February 20, 2021 I'm guessing you're using a -TA30, not a -T30. I don't have one of these in front of me to test, but if it's like other Unitronics analog inputs the common is not isolated and it's expecting a sourcing signal. Your SMC is a sinking analog output, which means it's expecting to get it's power from somewhere else. You'll need a loop isolator to connect this to the PLC. Joe T. Quote Link to comment Share on other sites More sharing options...
JozefSVK Posted February 23, 2021 Author Report Share Posted February 23, 2021 Hi Yes I am using TA30 it was my mistake. Thank you for your answer, yesterday I ordered loop isolator. Thank you !! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.