Motor Controllers for my chassis
Moderator: Harold_V
- Benjamin Maggi
- Posts: 1409
- Joined: Wed Apr 25, 2007 10:38 pm
- Location: Albany, NY
Motor Controllers for my chassis
I need a speed controller for my Ride Trains chassis. It has two motors, each rated at 24 volts and 280 Amps. I plan to run it with two marine batteries in series, each at 12 volts, for a total of 24 volts.
The used wheelchair/golf cart stores around the Albany area are NOT helpful. I have tried these options. Can anyone recommend a good STARTER voltage controller unit? It doesn't have to have all the bells and whistles for now, as I can always upgrade down the road.
I have heard the names Curtis and 4QD thrown around too.
Thanks.
The used wheelchair/golf cart stores around the Albany area are NOT helpful. I have tried these options. Can anyone recommend a good STARTER voltage controller unit? It doesn't have to have all the bells and whistles for now, as I can always upgrade down the road.
I have heard the names Curtis and 4QD thrown around too.
Thanks.
"One cannot learn to swim without getting his feet wet." - Benjamin Maggi
- Building: 7.25" gauge "Sweet Pea" named "Catherine"
- Building: 7.25" gauge "Sweet Pea" named "Catherine"
Re: Motor Controllers for my chassis
Are you sure about the amp rating? that comes out to 6720 watts.Benjamin Maggi wrote:It has two motors, each rated at 24 volts and 280 Amps.
at ~746 watt = 1 HP. that gives you a hair over 9 HP each...
If it is not live steam. its not worth it.
- Benjamin Maggi
- Posts: 1409
- Joined: Wed Apr 25, 2007 10:38 pm
- Location: Albany, NY
It is 280 Watts. Sorry! I am hesitant to use his controller because even he isn't perfectly sure it will work. He says that if the motors are run in series it should be enough, but running the numbers gives little room for error. That is all. I was looking for other options.
"One cannot learn to swim without getting his feet wet." - Benjamin Maggi
- Building: 7.25" gauge "Sweet Pea" named "Catherine"
- Building: 7.25" gauge "Sweet Pea" named "Catherine"
Hi Ben,
i have researched both models,
1) SyRen 25A regenerative motor driver http://dimensionengineering.com/SyRen25.htm
24v * 25A = 600 W continuous. 24V * 45A = 1080W Short term Max.
I fell you would be fine. I would worry more about your motors. but all you need to do is add a auto resetting circuit breaker to protect them
2) Sabertooth dual 25A motor driver http://dimensionengineering.com/Sabertooth2X25.htm
Both models do include
Personally, I am planning to use the Sabertooth dual 25A motor driver for the box cab. This will keep the motors isolated from each other.
I personally can’t see you going wrong, anyone have a different opinion?
Chris
i have researched both models,
1) SyRen 25A regenerative motor driver http://dimensionengineering.com/SyRen25.htm
based on these figures.Out of the box, the SyRen 25 can supply a single DC brushed motor with up to 25A continuously. Peak currents of 45A are achievable for a few seconds.
24v * 25A = 600 W continuous. 24V * 45A = 1080W Short term Max.
I fell you would be fine. I would worry more about your motors. but all you need to do is add a auto resetting circuit breaker to protect them
2) Sabertooth dual 25A motor driver http://dimensionengineering.com/Sabertooth2X25.htm
I think would be over kill for your applicationOut of the box, the Sabertooth can supply two DC brushed motors with up to 25A each. Peak currents of 50A per channel are achievable for a few seconds.
Both models do include
Synchronous regenerative drive
Ultra-sonic switching frequency
Thermal and overcurrent protection
Lithium protection mode
I would NOT run 24v motors in series in a 24v circuit.He says that if the motors are run in series it should be enough
Personally, I am planning to use the Sabertooth dual 25A motor driver for the box cab. This will keep the motors isolated from each other.
I personally can’t see you going wrong, anyone have a different opinion?
Chris
If it is not live steam. its not worth it.
- Bill Wilkins
- Posts: 358
- Joined: Sun Apr 06, 2008 8:59 pm
- Location: Northwestern Ohio
Ben,
Bill's link looks pretty good. However, be conservative in selecting the rating of the controller relative to motor current. The MOSFET semiconductors used in these controller are OK within their ratings, but might suddenly fail if there is a current surge, or if the motors are even temporarily stalled, as in a derailment for instance, or somebody attempting to start while the train is restrained by something dragging.
You should also look for dynamic braking unless your chassis already has mechanical brakes.
Bob
Bill's link looks pretty good. However, be conservative in selecting the rating of the controller relative to motor current. The MOSFET semiconductors used in these controller are OK within their ratings, but might suddenly fail if there is a current surge, or if the motors are even temporarily stalled, as in a derailment for instance, or somebody attempting to start while the train is restrained by something dragging.
You should also look for dynamic braking unless your chassis already has mechanical brakes.
Bob
Hi Bill, Great site, and great prices,Bill Wilkins wrote:http://www.electricscooterparts.com/spe ... llers.html
Check put this web site Ben.
Bill W.
just keep in mind, none of these controllers have regenerative braking and will require a relay for reverse as electric scooters don’t need reverse
(At least that i have found)
Love to hear more ideas!
Chris
If it is not live steam. its not worth it.
- Benjamin Maggi
- Posts: 1409
- Joined: Wed Apr 25, 2007 10:38 pm
- Location: Albany, NY
I have seen that site before but have no idea which one I should get. And, with no offense or embarressment intended, my mother's two scooters both have reverse.
Regarding what Roy says, I checked my notes and he did say to run them in parallel, NOT series. MY mistake, not his.
Regarding what Roy says, I checked my notes and he did say to run them in parallel, NOT series. MY mistake, not his.
"One cannot learn to swim without getting his feet wet." - Benjamin Maggi
- Building: 7.25" gauge "Sweet Pea" named "Catherine"
- Building: 7.25" gauge "Sweet Pea" named "Catherine"
Grainger carries DC speed controllers sold under the brand name of Dart.
They are pricey.
They can probably be found cheaper on the net.
Kap
They are pricey.
They can probably be found cheaper on the net.
Kap
Fadal Turn, Fadal Vmc 15, Prototrak 16 x 30 Cnc Lathe, Pratt and Whitney 16 x 54 lathe, Pratt and Whitney Vertical Shaper, G & E 16" Shaper, B & O Electric turret lathe, 36" Doall band saw,
Enco B.P. Clone, Bridgeport CNC Mill, Delta 12" Surface Grinder.
Enco B.P. Clone, Bridgeport CNC Mill, Delta 12" Surface Grinder.
no offense intended ether direction here.Benjamin Maggi wrote:with no offense or embarressment intended, my mother's two scooters both have reverse.
I am assuming your mothers scooter is not a two wheel model. correct?
This website deals with toy scooter parts not scooters for disabled persons.
Huge difference
I would not want reverse on a two wheeled scooter. i can see that ending is some burses
Chris
BTW i did look over a few controllers and did not see any with reverse
If it is not live steam. its not worth it.