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New to automation. Just introducing myself.


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#1 ChristianCMcKay

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Posted 04 November 2011 - 01:21 PM

So in my electronics program at school, we have an Allen Bradley SLC 500. I've been tinkering around with it in my own time and I made a simple fan control system. It uses a thermistor to bias a transistor which runs to a comparator. The output of the comparator is the input to the PLC, which is used as a delay between when the comparator goes high and the fan turns on. This removes relay chatter. I'm going to see if i can post the video in this post. Forgive me if I get this wrong.


This is the best I could figure out

#2 Benny Yeo

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Posted 11 November 2011 - 04:52 PM

View PostChristianCMcKay, on 04 November 2011 - 01:21 PM, said:

So in my electronics program at school, we have an Allen Bradley SLC 500. I've been tinkering around with it in my own time and I made a simple fan control system. It uses a thermistor to bias a transistor which runs to a comparator. The output of the comparator is the input to the PLC, which is used as a delay between when the comparator goes high and the fan turns on. This removes relay chatter. I'm going to see if i can post the video in this post. Forgive me if I get this wrong.


This is the best I could figure out

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