Wiring to eliminate reverse

[MPS1982]

Hello,

New member here! I hope I am posting in the correct section...

I am building a scooter using a motor from what I believe is an EZGO TXT cart. I have been thinking it was a series motor, but I just read something that makes me think it might be sepex... not sure, hopefully it doesn't matter. Anyway I want to eliminate the forward/reverse switch as I won't need it. My question is, to wire the motor and controller in the absence of these components, can I just wire A2 to S1and S2 to M- or alternatively wire A2 to s2 and s1 to M-? Any help would be greatly appreciated!

the type of motor is the main thing you need to find out
if your motor is marked s1 and a1 i think it is a series motor
f1 and a1 is sepex

look at controller

[Helirich]

Interesting, could you please take some pics. Post them here or a link to a build thread.

As far as your question, did you get a donor cart or just parts?

[MPS1982]

Originally Posted by Helirich

Interesting, could you please take some pics. Post them here or a link to a build thread.

As far as your question, did you get a donor cart or just parts?

Here's my concept sketch...rough, I know, but still very much in a planning phase.

[JohnnieB]

Originally Posted by MPS1982

Here's my concept sketch...rough, I know, but still very much in a planning phase.

What speeds are you aiming for?

Are you planning to use pulleys and belts or sprockets and chains to couple motor to drive wheel?

[MPS1982]

Originally Posted by JohnnieB

What speeds are you aiming for?

Are you planning to use pulleys and belts or sprockets and chains to couple motor to drive wheel?

Target speed is 25mph. I am using sprockets and chain to drive a jack shaft which will have a 2in friction drive roller contacting the tire. I had considered pulleys and belt driving the rear wheel, but the ratio was too difficult to achieve. For reference, my rear wheel is 24in dia.

[Volt_Ampere]

You need to know if it's a series or sepex motor. Find that out first. If it's series just don't use a FNR switch and you will only go in one direction. If it's SEPEX you want to wire the controller to always be in forward. Easy to do.

[MPS1982]

Thanks to all for your replies. I bought parts separately off Craigslist, I didn't part a cart out. So unfortunately I don't have much information about what kind of cart my parts came from. My original research pointed me towards having a series motor because of the S1, S2 markings, but the wires are thin and many which I saw on the sticky in this forum indicates a sepex motor. Most other identification techniques require information about the rest of the cart, so I'm kind of stuck.

But assuming it is series, I found some information supporting my idea of wiring B+ to A1, A2 to S1, and S2 to M-, but I'm still not certain whether I should connect the A2 pole on the motor to the A2 lug on the controller. I understand that the A2 lug is for plug braking, which I don't really think I need. I just don't want to leave it off and then fry my controller or have it fault out and not run.

I've tried to upload my schematic. We'll see if it works.

All thoughts are greatly appreciated

your controller (as pictured) is for a series cart
i believe your drawing is correct

[Clemsoncartguy]

My motor says series on it so assuming it has its factory sticker on it would it not as well?