HELP GE FANUC Analog Input module IC200ALG264

Join Date
Jun 2020
Location
Turin
Posts
2
Hello all,

Thanks for the forum which has provided me with a lot of help overtime.
I'm posting my first thread since I can't seem to find an answer to my issue.

I'll quickly explain the situation: I'll be installing a RTD sensor to a GE Fanuc IC200ALG264 analog input module using a 4-20mA converter.

Everything is fine except I can't seem to understand the polarities of the Fanuc inputs.

I'll explain better: the module has an IC200CHS022 for the terminals, 15 terminals total, and the manual is reporting a "number" and a "connection" for each terminal.

Now, the "number" seems to correspond to the visible pin of the terminal. But the positive and negative symbols are represented on the "connection", which I can't seem to wrap my head around what it means.

Here are abstracts from the manual and a photo of the terminals:
https://pasteboard.co/Jgq31Jz.png
https://pasteboard.co/Jgq1xxC.png
https://pasteboard.co/Jgq2LZU.png

Please tell me where to connect positive and negative outputs of the 4-20mA converter.

Thank you.
 
Looks like you don' t use ANY of the B-terminals.

Positive signal will go on the A# where number is the channel.
Return will be connected to A16/17.
 
The ALG264 module is 15 channels all sharing a common reference. Terminals A1 and A17 are for channel 1. Terminals A2 and A17 are for channel 2, etc.

Connect the + terminal from your converter to one of the "Ix" terminals and the - terminal from the converter to A17.
 
Thank you very much for the quick response!

That's actually what I suspected I should've done, but I still have one question bangin my head: what happens if more, different devices are connected to the same analog input module, and all of them are sharing the same A17 terminal?

Thank you again!
 
The devices would have to share the same common. If that won't work, you'll need some form of isolated input instead.
 

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