Search found 11 matches

by jgrade
Fri Sep 18, 2009 7:11 am
Forum: General Discussion
Topic: Haier dishwasher problem
Replies: 11
Views: 7492

Re: Haier dishwasher problem

For future reference, www.repairclinic.com is an excellent source of parts. I have used them for dishwasher and washing machine parts. They have quick shipping, and a great return policy allowing you to by more parts than you need to diagnose the correct issue and them return the unnecessary parts. ...
by jgrade
Fri Sep 18, 2009 7:01 am
Forum: General Discussion
Topic: Emulate a Keyboard with a Notebook PC?
Replies: 5
Views: 1532

Re: Emulate a Keyboard with a Notebook PC?

Instead of going to hardware route, can you use a software solution? Any remote desktop software should do exactly what you want to do without the complicated setup. It may be a bit slower, but it should work; assuming you can load software on the clients PC. The other solution, just off the top of ...
by jgrade
Thu Sep 17, 2009 12:47 pm
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

Re: Connecting realy to 240VAC line for 120VAC use

Sorry to dig up an old thread but I am still running into the leakage issue and wondering if anyone has a suggestion. In an installation yesterday I connected 6 Omron G3NA-210B 200~240VAC relays (optocoupler) with a 115VAC load just like the schematic on the first page. When checking for voltage on ...
by jgrade
Thu Dec 11, 2008 7:57 am
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

I decided to buy this relay and installed them as per the schematic above. I have a problem with leakage. I am reading about 80V on the load even when the relay is not energized. I forgot to check the amperage but it must be below the threshold for my chemical pump. I get a pulse on the pump, but th...
by jgrade
Fri Nov 14, 2008 1:37 pm
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

I don't know where you are shopping for SSR's but I can't find anything less than about $38~39. I was thinking about this SSR. The model I want is the TA1210.

OK now I see. I did not notice the link to Digikey. Thanks.
by jgrade
Fri Nov 14, 2008 8:03 am
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

Correct. To make the drawing simple, I just added the one relay. I plan to use three relays and wire the feed pump in parallel Good, you and Robert already thought of that. I didn't till ride home from work. Steam boiler huh? How about alarms or auto-shutdown if none of the water pumps or the chemi...
by jgrade
Fri Nov 14, 2008 5:54 am
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

Updated drawing to reflect actual installation.

Anyone have an opinion about using solid state relays instead of mechanical? I shouldn't have to worry about heat since the cycle will be about 15 seconds max.
by jgrade
Fri Nov 14, 2008 5:39 am
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

Thanks for all the replies. If your line is really 240 , why not use standard 240VAC relay and wire phase to phase. It is just as cheap as a 120 VAC relay. Most relays are spec'd with "Must pull-in and Must Drop out" voltages. The Pull-ins are usually 80% of rated coil voltage and would easily work ...
by jgrade
Thu Nov 13, 2008 1:00 pm
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

In the US. The application is turning on a chemical feed pump (120V about .6A) whenever any one of three 3 phase 240V pumps activate to add makeup water to a steam boiler. This is an industrial application not domestic. All HVAC stuff.
by jgrade
Thu Nov 13, 2008 12:58 pm
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

Image

Here is a crude example of what I want to do.
by jgrade
Thu Nov 13, 2008 12:10 pm
Forum: General Discussion
Topic: Leakage using SSR old topic but still need help
Replies: 17
Views: 3372

Leakage using SSR old topic but still need help

I have a need to switch a relay using 240VAC 3 phase to drive an appliance that is 120VAC 1 phase. The question is can I use a standard relay rated for 120VAC on the coil and connect it to L1 and L2 of the 240VAC 3 phase? I am lost when it comes to phases and if the relay will chatter with the sin; ...