cateid

MrPLC Member
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About cateid

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    Hi, I am New!

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  • Country Norway
  1. Beer Brewing machine

    hehe, my idea was to save money on this project, and since i have this micro850 laying around from a school project i figure why not use it for something. i think i will get an plug in module with transistor output to controll two SSR's and use a PWM block controlled by the PID block with max 1 min cycle time , and a DC drive with 0-10v input for the pump. the pump is only about 50 watts. 
  2. Beer Brewing machine

    Yes variable temp is a must. wont an SCR generate noise? could a solution be to run 0-10v to an PMW "generator" wich in turns controls an SSR? i already have an analog output: 2080-OF2. The pump is variable speed.
  3. Hi, i'm planning on building a AIO electric beer brewer with about 80 liter capacity. i was thinking of using an micro 850 i have for controlling mashing stages, circulation pumps, temp controll. i was thinking of using two 1600w heating elements and a 24vDC pump.  My I/O options are 14/10 (micro 850 lc-50 24qwb) only relay outputs, an analog input plugin with 4 inputs and an analog output plug in with 2 outputs. since i cannot run any SSR directly from the PLC because of the relay outputs, what can i ad to best control the heating elements? it requires accurate temp controlling within +- 0,5 degree.  Also, what would be the best solutuion to controlling the pump? i have an 7" TFT HMI from AB i was planning on using for set values, temp readings, timers etc. and ofc some awesome graphic simulation of the system.  BRGDS Cato