Re: DC SSR only working at half
Same voltage reading on all four outputs?
What if you don't use the REN-C? (I'm assuming the REN-C F/W wouldn't know that you have DCSSR's attached, so it's output may not be just "ON".. and then later .. "OFF")
Have you got an SSR tester, that you could just close a switch to turn the SSR on? As you are home etching there are a couple of samples in the FILES section. It might help. (The testers usually double as a cable tester as well, so it's a reasonable investment of time to make one)
Standard Disclaimers apply:
"Product may not appear as shown, your mileage may vary, I'm not a doctor nor do I play one on television, these are not the droids you seek"