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Old 02-11-2016, 10:07 PM   #1
sonnysmith
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Default DCS up date

Can someone tell me, why, if you replace a stock controller on a dcs. Why does it seems like its got a lot more power and torque than when you change/ add the same type controller on a stock PDS cart.
Just one of those dumb question that on my mind.

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Old 02-11-2016, 11:54 PM   #2
scottyb
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Default Re: DCS up date

The DCS is a crossover. It was only produced for 5 years and was replaced by the introduction of PDS. In general the DCS is a great all around cart once fitted with the alltrax aftermarket 400 control.
The DCS produces more speed than a series drive cart and it produces more torque than a PDS cart. It's just the way it was designed.
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Old 02-12-2016, 12:07 PM   #3
JohnnieB
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Default Re: DCS up date

Scotty didn't specifically say it, but the difference is the motor.

A stock DCS motor has more low end torque than a stock PDS motor, but less speed.

Put a XCT or DCX controller in an other wise stock PDS and you'll get about 24MPH while the same controller in an otherwise stock DCS will do about 20MPH, but have more low end torque.

If you put identical aftermarket motors along with identical XCT or DCX controllers in otherwise stock, PCS and DCS carts, you'd get the same torque and speed from both.
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Old 02-12-2016, 02:14 PM   #4
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Default Re: DCS up date

Not if they have their perspective DCX and PDS field mapping in place.
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Old 02-12-2016, 03:23 PM   #5
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Default Re: DCS up date

Quote:
Originally Posted by scottyb View Post
Not if they have their perspective DCX and PDS field mapping in place.
Yes, but the field map should match the motor being used and if the same motor is used in both cart, the field map should also be the same.
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Old 02-12-2016, 08:49 PM   #6
sonnysmith
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Default Re: DCS up date

Thanks for the info.
I'm working on a cart and I have both PDS and a series motor. Also have a 400 controller altrax. I was trying to see what was the best motor for over all use.
That's when I though about the DCS motor and all the good info that has been posted about the speed and torque.
I will also be changing the batteries to 48 volt.
Any input on this?

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Old 02-13-2016, 09:57 AM   #7
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Default Re: DCS up date

There are three types of traction motors used in carts, Series, SepEx and AC. Each must be fed by a matching controller type and neither motors nor controllers are interchangeable between types.

Series and SepEx (Separately Excited) drive system types are both DC, but other than that, they are very different animals, so a Series motor will not work in a PDS or DCS carts since they are SepEx drive types. Granted, you can convert a cart with a SepEx drive to a cart with a Series drive by replacing the motor, the controller, adding a F/R assembly and replacing the wiring harness, and you can convert a Series drive cart to a SepEx drive cart by doing by replacing the motor, the controller and wiring harness and tossing the F/R assembly into a dumpster. Basically, you have to R&R everything between the battery pack and differential.

The best drive type to use, depends on what the use is.

Series drives tend to be better for off-road uses while SepEx drives tend to be better for on-road stuff, but there is a huge gray area between the two extremes and some people build hunting buggies with SepEx drives while others build neighborhood cruisers with Series drives.

What it usually boils down to is what cart do you have, what to you want to do with it and how much money are you willing to invest to accomplish that goal.

----------
As for going to 48V. Doing so will increase a 36V cart's speed and torque by 33%.
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Old 02-13-2016, 08:50 PM   #8
sonnysmith
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Default Re: DCS up date

Thanks JohnnieB
My only question was, is there a big/or no difference in PDS motor with the speed sensor removed (running the altrax controller) VS a stock motor off a DCS cart that does not have a speed sensor.
This is just a cart I'm playing with. No special need for it.

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Old 02-14-2016, 09:10 AM   #9
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Default Re: DCS up date

DCS motor will be slower but more torque. Make sure if you switch motors that you switch the field map on the controller.
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Old 02-14-2016, 09:12 AM   #10
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Default Re: DCS up date

Quote:
Originally Posted by kgsc View Post
DCS motor will be slower but more torque. Make sure if you switch motors that you switch the field map on the controller.
Some controls use the same map for PDS and DCS
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