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Electric motor and speed control circuit diagram

I am trying to build a R C model aircraft with an electric motor with speed control

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Electric motor single phase 3 speed 12.5mfd. 500v. working capacitor.

How do I wire them up?

Posted on Jun 17, 2011

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Start Here, ( RC motor speed control) if not helpful post back with more details.

Posted on Sep 27, 2008

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Battery razor e 100 replace


Could be the battery.
Put the Scooter on a block so the rear tire is raised. Remove the standing plate to reveal the battery compartment.
Charge the Unit completely

1. Using a multimeter measure the voltage across the batteries. If the voltage is below 20 volts batteries are dead - Replace batteries.
2. Now for a running test. Turn the throttle and spin the rear tire to preform a kick start. Still measuring the voltage. If the voltage is Below 20 volts or if the voltage drops quickly batteries are dead - Replace batteries.
3. If the voltage is remaining around 24 volts for a long period - then you could have connector problems, clean and tighten all connectors.
I use a fiberglass electronic cleaning brush, as contact cleaners leave residue that interfere with electrical connections.

The control module is simple and can be replaced with only a 24 volt relay without the kick start feature or Brake. If you want the brake then you can use two 24 volt relays still no Kick Start.

For those of you who know electrical, below is circuits I developed to replace the controller. This diagram will also give you a better understanding on the Razor circuit.

NOTE : This is not a schematic diagram of the Razor E100 Control Module. I designed this circuit. for my Great Nephew's Scooter.

1. The Brake is a normally closed switch that opens when you squeeze the Brake handle.
2. The throttle is two normally open switches that close when you turn the throttle.
3. The Kick Start circuit is described in the Diagram below.
4. The resistors values may need to be tweaked for best performance.
2a0b7f10-2c7e-4ffc-b7d7-ab4ce6d1545e.jpg

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1 Answer

How to correct trimming problems did what the insteuctions said and keep having the same spinning counterclockwise problem


Just bought the air hogs helicopter with the crane. Had the aircraft constantly spinning clockwise, no matter how much I turned the trim control counter clockwise the aircraft still rotated. I then turned the trim control in the opposite direction until I noticed the aircraft had stopped spinning, and used the rudder control to fine tune forward flight. So, get the aircraft to hover and turn the trim button in the opposite direction until you see that the aircraft spinning slows right down. If you continue to turn the trim control in the same direction the aircraft will increase its spin, so just dial back the trim.

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How to find circuit breaker on trax 12 volt fire engine


had this same problem with a peg perego tractor, it ended up being that one of the motors was bad, i would try disconnecting one of the motors and see if it works then try the same thing with the other motor

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Have hobbyzone firebird commander 2, new to flying. Could not get it off the ground, kept veering to right - and my friend's new, same plane, also did the same, yet veered to the left. Help


Some RTF aircraft are not quite RTF as they sometimes need trim adjustments. Also, a wing could be heavier on one side than the other as RTF models are mass produced with cheap and cheaply assembled components.

For a quick balance check, remove the prop and obtain an electrical terminal block (aka Chocolate block). You will need just the brass terminal insert with both screws.

Remove the prop and put the terminal onto the prop spindle. On the other open end of this, you need to insert a small curtain hook (ones that are used to hold up net curtain wires). Insert this into the other end. To the hook, tie a short length of nylon or cotton. Suspend the cotton from a platform such as a shelf. You need to be able to hang the aircraft without it touching the wall but it needs to be close to the wall. Once done, obtain a tape rule and measure the leading edge END of the wing. Move the tape to the other wing and make sure that the same position aligns with the same mark on the rule. If it doesn't, you need to add a minute amount of weight. About a gram, to the higher wing.

If it is fine, then remove the cotton and then tie a loop into it. Make another cotton string loop identical and hang it one plane length away. Using a small piece of sticky tape, tape the cotton to the tape and then to the extreme top of the tail fin. Loop the other cotton loop over the prop spindle, making in effect a cradle system. Again, use a tape rule to ensure that the both wings sit at exactly the same height. Add a piece of tape to the lighter wing to level it. A better way is to use nail varnish as it levels itself and prevents wing surface issues.

If both wings are okay, then it may be the tail fin rudder. It could be stuck on the right side rather than in the middle. This makes the aircraft fly to the right the faster the speed is, even taking off. Try trimming the rudder with the trim control on the transmitter or servo link.

If all else fails....buy a model boat as it could be the operator....

Feb 13, 2011 | Hobby Zone Firebird Commander 2 RTF...

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Novatech High Speed HSP Brushless 70A ESC for Cars, Buggi: wont reach top speed...


The green light wont go solid. .right? so not full speed

Its something wrong with the remote controller, not giving the full speed signal . either change both Tx - Rx crystals . or change the remote. .

but before that try to trim the throuttle on your Rx

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1 Answer

Need electric motor for dual control air pump


I have the same problem with a Simmons Airpedic bed system. Same model #xx/fcwt2/001. We found this number on the motor 800 247-0677. They want $250 for a king size. Have you come up with anything?

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2 Answers

No way to control a nice flying wing


Members of www.rcgroups.com would be happy to help you, I'm sure.
Berg-4 micro receiver, HS-55's.
ESC would depend on the motors you choose.
I'm assuming this is a small and light aircraft.



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Electric rc truck turns on but dont move


Most likely the motor is seized up, and it will not allow the transmission to turn. You can take the motor off to confirm this. I hope this helps

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1 Answer

Walkera 37 remote heli


Swap over the two wires that go from the motor to the speed controller. NB. don't swap over the wires at the battery this will destroy the speed controller.

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Electric Scooter model PB707A will not start. New battery has been tried and our mechanic wants to look at the electric wiring but has NO INFORMATION on the electric wiring?


Simply buy a new controller from razor.com. If the problem is not the batteries, then it is you controller. The power before it reaches the motor has to go through the controller. If you don't want to replace the controller you can either do two things. Bypass the controller by connecting the batteries direct to the motor using a on/off switch to control the motor. Or take the control apart, inspect the chip for any damage and replace the damage part.

here is a website that might help:
http://www.electricscooterparts.com/razorpocketmod.html

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