48V Upgrade on Medalist-Accel Pedal super sensitive??

frank43 · 11-01-2019, 04:06 PM

Hey all,

Thanks for all the help for my Medalist 36v to 48V upgrade! ScottyB hooked me up with an Alltrax SR48500 Controller, HD F/R, 400 Solenoid, and 2G cables.

I also installed six new Trojan 8v t-875 batteries.

Well, today was her maiden voyage, and here is the issues Im having:

Once I press the throttle pedal, I hear the solenoid click, and I am moving. Only problem is I can barely press the pedal and I am at full acceleration. If I press more than maybe an inch maximum, then it stops any acceleration altogether. Same in reverse.
You really have to 'feather' the pedal, otherwise you get a jerky feeling. If i maintain the pedal pressure at about 1 inch, I am fine. Seems like it may be a setting I need to adjust on the controller??

Thoughts?
Frank

orangeman6 · 11-02-2019, 09:06 AM

Frank, until one of the experts gets on this, you can maybe start with verifying the controller is set for the right throttle. Look in the manual and you can see the blink codes for which throttle type it is currently set for. You can also hook the controller up to a laptop, which is where you would change the settings. You need the Alltrax toolkit download and a cable like what goes to your printer.

scottyb · 11-02-2019, 10:15 AM

I agree - the controller LED will blink 4 Xs green then go solid green just after the solenoid clicks if it is programmed for the medalist throttle input.

frank43 · 11-02-2019, 08:27 PM

Hmmm... It seems to be programmed correctly based on the blinks and also when i connected to Toolkit to it. Any other thoughts on what can cause this malfunction? Im stumped?

Frank

orangeman6 · 11-03-2019, 12:23 PM

Not sure if you saw it in the toolkit, but there’s a whole throttle curve setting feature in there. I’m not familiar with it since Scottyb dialed mine in before sending the controller, but maybe give that a look.

The best that I know, your other potential reasons are moisture in the pedal box, bad molex connection, or the the throttle signal itself is bad. There’s procedures in the stickies for testing the throttle.

frank43 · 11-03-2019, 08:46 PM

Interesting. So I changed throttle settings, and still nothing.

I took a chance and loaded the EZGO ITS setting and it worked nicely, Im running!
Why do you think this is? Strange

Frank

11-01-2019, 04:06 PM	#1
frank43 Not Yet Wild Join Date: Jul 2018 Posts: 37	48V Upgrade on Medalist-Accel Pedal super sensitive?? Hey all, Thanks for all the help for my Medalist 36v to 48V upgrade! ScottyB hooked me up with an Alltrax SR48500 Controller, HD F/R, 400 Solenoid, and 2G cables. I also installed six new Trojan 8v t-875 batteries. Well, today was her maiden voyage, and here is the issues Im having: Once I press the throttle pedal, I hear the solenoid click, and I am moving. Only problem is I can barely press the pedal and I am at full acceleration. If I press more than maybe an inch maximum, then it stops any acceleration altogether. Same in reverse. You really have to 'feather' the pedal, otherwise you get a jerky feeling. If i maintain the pedal pressure at about 1 inch, I am fine. Seems like it may be a setting I need to adjust on the controller?? Thoughts? Frank
frank43 Not Yet Wild Join Date: Jul 2018 Posts: 37

11-02-2019, 09:06 AM	#2
orangeman6 Gone Wild Join Date: Sep 2016 Location: Northern California Posts: 1,300	Re: 48V Upgrade on Medalist-Accel Pedal super sensitive?? Frank, until one of the experts gets on this, you can maybe start with verifying the controller is set for the right throttle. Look in the manual and you can see the blink codes for which throttle type it is currently set for. You can also hook the controller up to a laptop, which is where you would change the settings. You need the Alltrax toolkit download and a cable like what goes to your printer.

11-02-2019, 10:15 AM	#3
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,406	Re: 48V Upgrade on Medalist-Accel Pedal super sensitive?? I agree - the controller LED will blink 4 Xs green then go solid green just after the solenoid clicks if it is programmed for the medalist throttle input.

11-02-2019, 08:27 PM	#4
frank43 Not Yet Wild Join Date: Jul 2018 Posts: 37	Re: 48V Upgrade on Medalist-Accel Pedal super sensitive?? Hmmm... It seems to be programmed correctly based on the blinks and also when i connected to Toolkit to it. Any other thoughts on what can cause this malfunction? Im stumped? Frank
frank43 Not Yet Wild Join Date: Jul 2018 Posts: 37

11-03-2019, 12:23 PM	#5
orangeman6 Gone Wild Join Date: Sep 2016 Location: Northern California Posts: 1,300	Re: 48V Upgrade on Medalist-Accel Pedal super sensitive?? Not sure if you saw it in the toolkit, but there’s a whole throttle curve setting feature in there. I’m not familiar with it since Scottyb dialed mine in before sending the controller, but maybe give that a look. The best that I know, your other potential reasons are moisture in the pedal box, bad molex connection, or the the throttle signal itself is bad. There’s procedures in the stickies for testing the throttle.

Today
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11-03-2019, 08:46 PM	#6
frank43 Not Yet Wild Join Date: Jul 2018 Posts: 37	Re: 48V Upgrade on Medalist-Accel Pedal super sensitive?? Interesting. So I changed throttle settings, and still nothing. I took a chance and loaded the EZGO ITS setting and it worked nicely, Im running! Why do you think this is? Strange Frank
frank43 Not Yet Wild Join Date: Jul 2018 Posts: 37

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