kikitron Posted September 19, 2017 Report Share Posted September 19, 2017 HI to all. I have one project that I need to drive hydraulic proportional valve that has +/-10V. So now I need PLC with analog output +/-10V and I found JZ20-11-UA24 PLC. Will this Jazz be a good to drive my prop. valve or is there another unitronics product that can handle +/-10V output? Thanke you in advance for you answers. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Flex727 Posted September 19, 2017 MVP 2021 Report Share Posted September 19, 2017 The Jazz, like most PLCs with analog outputs will drive 0-10V, not +/-10V. It is possible to convert a 0-10V unipolar output to a +/-10v bipolar signal with something like this: http://www.ti.com/lit/ug/slau525/slau525.pdf Quote Link to comment Share on other sites More sharing options...
kikitron Posted September 20, 2017 Author Report Share Posted September 20, 2017 Thanke you for the answer, but in documentation of unitronics JZ20-11-UA24 is written for analog output: 2 12-bit +/– 10V, 4-20mA Quote Link to comment Share on other sites More sharing options...
MVP 2021 Flex727 Posted September 20, 2017 MVP 2021 Report Share Posted September 20, 2017 Hmm, when I go to their web page, here: https://unitronicsplc.com/jazz-series-jazz/ I find it says 0-10V, but I see in the specifications pdf it says what you show above (+/- 10V). I've never encountered a +/- 10V analog output, but that doesn't mean it doesn't exist. You may have to email Unitronics Support (support@unitronics.com) for a definitive answer. Quote Link to comment Share on other sites More sharing options...
Kikis Posted September 22, 2017 Report Share Posted September 22, 2017 I think it works like this: 4095 you get +10V, -4095 you get -10V Quote Link to comment Share on other sites More sharing options...
MVP 2014 Simon Posted September 24, 2017 MVP 2014 Report Share Posted September 24, 2017 U90 Ladder shows the +/- 10V notation, so I would say that is definitive. For the record, the IO-AI2-AO4 expansion module also has +/- 10V outputs (Jazz does not support expansion modules). 1 Quote Link to comment Share on other sites More sharing options...
kikitron Posted September 27, 2017 Author Report Share Posted September 27, 2017 Thanke you for your help. Yes JZ20-11-UA24 has +/- analog output and its working 4095 +10V, -4095 -10V Now I have programming problem... but I have to open new topic in right place. Quote Link to comment Share on other sites More sharing options...
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