easy-forum

English Support - Hardware => easyRelais => Thema gestartet von: mtkrane am November 09, 2005, 17:28:03 Nachmittag

Titel: analog inputs
Beitrag von: mtkrane am November 09, 2005, 17:28:03 Nachmittag
Hi!

In my application I need analog inputs, but these must to be of 4 to 20 mA, my question is  Is safe put an external 500 ohms resistor?  Because some people said me that this doesn’t safe. 

thanks
Titel: Re: analog inputs
Beitrag von: KressSwiss am November 09, 2005, 21:01:39 Nachmittag
Hi MTKRANE
May be it's not as save as a real 4-20 mA Input. A real 4-20 mA is "wire brake save". I'm not sure if the solution with a reststor has this feature.

Titel: Re: analog inputs
Beitrag von: Bluebello am November 21, 2006, 22:16:17 Nachmittag
The "Wire break safety" is still active. The detection of the wire break is done on the receptor side.