Hi Gene, I had already tested my Router (also a Hitachi mv12) in a different circuit and knew it was working. The SSR that went bye-bye was one that I bought several years ago (used on EBay). So, after your reply, I checked the signal from the 7i76e to the SSR and (thank goodness) it was good. So I just went ahead and replaced the SSR with a new one. Now everything is working. This SSR is just controlling a line outlet. I had been using the old one for sometime without any problems. I have never tripped a breaker. The line into the cabinet feeds an SE600-48v switcher, a small 5v supply, a small 24v supply and the SSR controlled line outlet. Thanks, Alan
> From: gene heskett <ghesk...@shentel.net> > Subject: Re: [Emc-users] Damaged an SSR > Date: December 31, 2023 at 1:42:07 PM CST > To: emc-users@lists.sourceforge.net > > > On 12/31/23 12:50, condit.alan--- via Emc-users wrote: >> I was using an SSR to turn on the spindle on my PCBMill. By mistake I >> reached over and turned off the switch on the router while it was turned on. >> When I tried to turn it back on, it no longer worked. I am hoping that I >> just blew out the SSR and not the 7i76e. I have a spare SSR. Is there any >> precaution I should take for the future? > The only scenario I can imagine is only valid if the router has a soft start > circuit like a hitachi mv12 has. Turning it back on before it got stopped > might damage that circuit in the router. Does it work from its own switch if > plugged straight into the line? > > I use big HoymC or Crydom SSR's all over the place but I also trigger them > on-off in sequence from timers in my .hal files. Usually in an attempt to > start motor supplies which if just slammed with a mechanical switch, will > instantly clear a 30 amp breaker from the turn on in-rush, so when I do an > on, they get power for the first 4 seconds thru a 50 ohm 200 watt resistor > that a second SSR shorts out 4 seconds later after the filters are pretty > well charged. With the motor itself limited to about 2x nameplate FLA, I can > run my cnc'd G0704 on a legal for 10 gauge wire, 20 amp breaker. At turn off > I throw the big resistor back in series for a second then drop the other SSR > to turn it all off. Been doing that w/o any SSR failures I caused for about a > decade. Had a nearby lightning strike blow one of then to the permanently on > state, the only failure I've had. > > Does it still work if plugged in direct? And if the SSR is switching a > duplex does a test lamp work plugged in beside the router? > >> Alan >> Sent from my iPhone >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> . > > Cheers, Gene Heskett. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
