Recent content by H012

Ok Here is what I did: I mounted a Siemens 3TH4022-0A it's the only relay I have its old but OK for test. I mounted to a board then made a z bracket with a screw that will allow me to adjust it to push down on button on top of relay. What I found was NC open before NO close. There is actually...

As stated before I used two meters one on NO and one on NC watched continuity. By watching I could not tell if make before break occurred. It happens too fast. I'm using analog meters. With the new relays you can't see the contacts. I have had all makes of relays the most common are the AB 700CF.

That's what I mean the specs for the relays are out of my league! I tried looking up relay overlap forget it!

That's it

The 25 amps motor start exist at the NC opening when of course NO close due to a jumper from NO to NC. Yes there probably is an overlap but my thinking is that the 25 amps doesn't need to be at the NC's at all Regardless of overlap. Also my thinking is that this time element that overlap occurs...

sharing the load maybe although that wouldn't be smart on their part as all the 115 power for the relays and other 115 V circuits in the chassis come off one common terminal strip. I've always wondered about it. The timer coil is running to the sweep relay coil power. That way when relay closes...

Finally got it to upload photo

yes that looks right were you're indicating on attachment.

Trying to upload a picture. Having hard time I just jumped from relay contact to timer contact.

It's the jumper from 43 NO to the 31 NC of relay

To put it simply, I fixed the contact race and took the 25 amps out of the braking NC'd I put to new cube relay in sweep we'll see if it changes anything. Does my idea sound OK to you?

Ok been awhile. What I did was add a timer in between jumper wire from 43 to 31NC used the NO of timer at .05 secs. It closes after start windings have deenergized.Before if you remember There was 25 amps going through NC also as they were opening. Now by delaying the timer closes after the 25...

Checking it today. I tried the two meter approch To see if there is a delay of the the NC opening when NO close. If there is it is to fast for me to tell looking at both meters it looks like it's simultaneous but that's probably not the case as I don't believe human eyes and the brain to...