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Picking The Right Sabertooth

Hey guys:) Im looking at getting a Sabertooth on order and not really which one to go with. I'm using a Jazzy Elite Electric Chair, that states a 40 amp system, but cant find anything on the motors for amperage. Doesn anyone have some experience with the Jazzy that can give me some insight?


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#1  
Im guessing, a 2x 32 Sabertooth (40amp system, 20 amps per motor)would work, but concerned that the peak could go over the 64amp peak of the Sabertooth, so wondering if i should go to the 2x60, or is that complete overkill?
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#20  
Using the ST Movement panel, plus script? I can see the Baud rte in the movement panel, plus the settings you have listed here.
Power is connected from the EZB and Signal wire to S 1
#21  
No try the script I gave you separately .... Are there any leds lit up on the sabertooth?

To be clear no power from the ezb, just 2 wires S1 and grn... battery is separate to the sabertooth
#22  
S1 to DO white data pin, grn or 0V (on the sabertooth ) to D0 ground (black pin).... no other wires to the sabertooth
#23  
Sorry about the bad picture had to throw it together so to speak...
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#24  
yes, I had 1 Blue LED on.

"The EZ-B connects to the GND, +5 and Signal to the Sabertooth. The Signal from the EZ-B connects to S1 on the Sabertooth."
This is how i hooked it up, and was understanding this to mean to hoo k the + and _ plus Signal to S1
#25  
NOOOOO... LOL Just 2 wires (see my picture)... Ground on sabertooth (or as mine says 0V) to grd (black pin) on D0.... S1 on sabrertooth to white data pin on EZB... DO NOT connect anything to +5 on the sabertooth or the red pin on the ezb
#27  
Got it
I copied that from the ST Tutorial :O Hope its still ok, no smoke, but, fingers crossed.
So common ground from the opposite side as the Motor terminals.
All i have for control is a start button, no movement panel, which do i use?
#28  
The grounding makes more sense now:) Didnt make sense to get its power from the EZB.
#29  
The +5V on the sabertooth is a bec... it is used to power a device like a radio receiver for remote control...
#30  
So much to learn! Pushing through the fear of blowing things up lol
#31  
Just don't reverse the polarity on your shiny new sabertooth... You gotta' love the smell of burnt electronics in the morning, don't ya' :P
#32  
Only part im still confused on, is that the script only gives me a Start button, with no other controls. My apologies, but i missed something along the way.
#33  
lol ya, going to save that kind of sillyness untill day 2 :O DAM!
Hoping to get this part figured out before the weekend. Electrical panel and came today with the ST, and the Motherboard and power supply come tomorrow. Getting excited.
#34  
Yep, just press start button and the script will run for about 5 seconds then the motors and script will stop... well it should, anyway... It is just a simple test to see if the sabertooth responds... running and then stopping both channels (motors)
#35  
Ah ok ic:) Thanks so much for taking the time, Richard. Very much appreciated!
#36  
Ah, no worries... We'll get you up and running before you blow ....your saber... I mean complete your project....:P
#37  
:) Ill need it, thats for sure! lol
#38  
@Dana... Just a though... Do you own a multimeter? Maybe a good idea to connect it to your wheelchair motors to see generally what kind of amps they are pulling... This will help you determine if both motors are running ok...etc... I usually do this (for motors and electronics) for my projects for no other reason than to be able to estimate how long my batteries might last...
#39  
Yes i do, and definitely need to, use it alot as i move through this project. I have someone who will be taking care of the heavy lifting parts of the project, but im pushing through a lot of it so i have a good understanding of how things work on the electrical end of things, but don't trust myself enough, for the whole project.
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