Thursday, January 15, 2009

Referral Card Samples

Ciando is gerund.


Often, as in the modeling forums, is this the question:
Most drives do not have the option to reverse the direction of rotation. The drives are thinking that control a plane or a helicopter, devices that do not need this feature. Special drives for boats have this feature, but can be much more expensive, plus there is less variety. Principles


In DC motors (with brushes) the direction of travel is determined by the placement of the poles. If we invest, the motor rotates in the opposite direction.
In brushless motors (stepper motors) only to reverse two of the three cables, get the same thing. So the problem is the same in both cases.
to "reconcile" the invention will use three colors (Red, Black and White) for brushless and only two (Red and Black) for DC. Only use red and black wires in both cases.

two-way switch
In the photo above we have a two-way switch. We saw two rows of three contacts each.
How it works?
According put the lever, will contact the central terminal to the right or the the left. Now they are contacting the terminal N of the N center to the right. Same with the R at the R right. Among the top row and the bottom one there is no continuity, no current passes through the top row below. Change lever and then pass the stream from the center to the left.
is important to check with a multimeter that our switch operates as herein described.
How do I put it?
In the center terminals are the wires coming from and who would normally drive to the motor. In the case of a brushless cord stays soldier remains in the engine. Avante
all
For the engine will advance forward terminals right attached to the motor. When the lever is in place will contact the center N of the N on the right and the center R of the R on the right. The engine will move normally.
Ciando is gerund
When we change the position we want to handle the boat "cie" (reverse). The solution is easy, in the left end probe the wires to the motor but folded so that the neutral line, the center will feed the left R and N R from the center to the left. The cables are reversed and therefore the motor is rotated in the opposite direction of any kind. These cables do not have to go to the motor unless you want, We will cross welding cables N cable into the top right and bottom left N. Also the lower right R to R top left.
How do you handle it?
Easy with a servo and a channel of our radio station not to use. Danger
system!
interrutor has to endure the intensity of current that powers the motor. Thus we find a switch that we hold the power that we deem to be passed through the (in amperes). Otherwise the switch will burn, melt, stop the boat lying in the middle of the lake. But this is not good, if short-circuits can damage the drive.

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