Charger LockOut

[joepiccaso]

I have a 1994 6-seat Club Car Transender which I converted from 36V to 48V. I have an onboard Charger, Lester Summit II 1050W, and an Alltrax SR48500 controller. I removed the OBC. I had some advice about removing the OBC and rewiring the charger, etc. I believe I did that correctly as it works, other than the lockout, which I'd like to have since I have grandchildren and others that do drive it occasionally. Since it was a conversion from 36V, some of the wiring is different than the Schematics. I have a V-Glide from the original cart. Most everything else has been upgraded. How do I wire the Charger Lockout?

P.S. I also lost my reverse buzzer in the process, but no one liked it anyway. Maybe, if it was a beeper they would be more tolerant.

[Fairtax4me]

There are two ways to do this and you just need a 48v DC relay.
Which model # charger do you have? There were some differences in the re-design which they released a few years ago, and I would need to know which version you have to make sure you can get it hooked up and set-up properly in the App.

Reverse buzzer should be pretty simple. Make sure the buzzer is getting pack voltage, and then check that is is connected to the reverse micro- switch on the back of the FnR lever.
The Orange wire from the micro-switch needs to be connected to B-, at the controller.
The Red/White stripe wire from the switch goes to the buzzer.

[joepiccaso]

Thanks, FairTax. I have a model #30400, Summit II 1050W charger. It's like 2+ years old. It's the black one.

When you say 48V relay, is that a particular part, or if I search for Golfcart Relays I should find one easily?

[Volt_Ampere]

For an onboard charger, it's much easier to use a 110V relay that gets powered when the plug is inserted. (has to be powered up to work though) The relay when energized can then interrupt the key switch power to prevent the cart from running.

[joepiccaso]

OK, I think I understand. Thank you.

[joepiccaso]

OK, Guys, I don't understand it as well as I thought. Are there any schematics or drawings that show me how to do either the 48V relay or the 110V relay? I'm a visual learner.
And, remember, I no longer have an OBC. The charger is onboard and connected directly to the batteries. I hate asking such specific type questions, and I'll search for the answer and parts if you could point me in the right direction. Thanks for the help.

[Volt_Ampere]

If you use a 110V relay, the coil connects across your charger line input. The contacts would be NC so that they open when the relay is energized. You use those contacts to interrupt the key switch so the cart is unpowered when the charger is plugged in. This interlock won't work if you plug in a cord that isn't also plugged into the wall socket!

[joepiccaso]

Thank You. I'll give that a try.

[Fairtax4me]

Agreed. With that charger you're better off using a 110v relay to cut the solenoid power. (easier to get to the wiring).
The relay coil side just goes in parallel with the AC input wires to the charger.
Use the NC contacts of the relay for the "kill" side. The relay will be Open when power is applied, so the key switch power to the solenoid is cut.

[joepiccaso]

would you happen to have a drawing, even a rough one, and a part number or a picture of the relay. When I search for relays, I find hundreds, if not more. I wasn't able to find any diagrams on the site, Sorry.