<div dir="ltr">We need a little more info.  What is your PID output rated at (volts, amps).  What are your SSR input requirements (volts amps).  Are you doing true proportional or a bang/bang approximation?<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Oct 1, 2020 at 6:10 PM <<a href="mailto:lee@automate-it.com">lee@automate-it.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif">
<div style="margin:0px;padding:0px;font-family:monospace">I want to operate two solid-state relays simultaneously (one for a 110V circuit, the other for 220V) from a single PID. I had thought I would just wire them in parallel from the PID, but a bit of poking around the interwebs suggests otherwise. So I sketched up this drawing for two SSRs in series with a PID. Does this look correct for this situation? Any suggestions appreciated!<br> <br> (I'm a chemist, so I understand electron flow and related, but I trust this little Shop Talk community more than I trust my electrical intuition!)<br> Thanks!!!<br>  Lee</div>
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</blockquote></div><br clear="all"><br>-- <br><div dir="ltr" class="gmail_signature">=================================<br>= Never offend people with style when you   =<br>= can offend with substance --- Sam Brown  =<br>=================================</div>