Protech ZOOM 425 ccpm Spécifications télécharger pdf (Page 105)

11.3. Wire routing

• Ensure all electronic components which are sensitive to electrical noise (gyro and receiver)

are placed away from the components which generate electrical noise (motor and speed

controller).

• Try to route wires to/from electrically noisy components (ESC power, motor, and control

wires, also all switching BEC wires) away from other wires. A good strategy is to route the

noisy wires on either the left or right side of the heli, and all other wires on the other side.

Do not coil excess wire. These coils of wire will act as an antenna and will amplify the gen-

erated or received electrical noise. Bundle the wire in an S-pattern instead.

• Do not cut the receiver antenna wire to shorten it, because this will detune the antenna and

significantly shorten the receiver range. If you need a shorter antenna, use the proper

Dean's antenna, Azarr antenna, or other antenna tuned to your frequency band instead.

• Place the antenna or antenna wire at least 1 inch (2.54 cm) away from any carbon fiber or

metal frame parts.

• Ensure the expensive electronic components (such as the gyro and speed control) are loc-

ated where they will not be easily damaged in a crash.

• Ensure all wires are securely fastened, especially the wires from the gyro. Dangling wires

may cause tail wag problems.

• Put a strip of tape over the receiver crystal to ensure it will not vibrate in flight (which may

cause glitching) or fall out of the receiver.

11.4. Soldering technique

Good solder joints are extremely important for an electric helicopter. Electric helicopters re-

quire extremely large amounts of current for even simple acts such as basic hovering.

If the battery and motor connections are not soldered correctly, then the motor may not receive

enough current and the helicopter may lack power to fly properly.

The basic steps to forming a good solder joint are:

• Select the correct size soldering iron for the application

If you are soldering small wires (about 20 gauge) then you should use about a 20 watt sol-

dering iron. If you are soldering battery packs or larger (12-18 gauge) wires then you need

at least a 40 watt soldering iron with a thick tip to have sufficient heat to solder properly.

The Weller SP40L costs less than 20 dollars and is a very good soldering iron for soldering

thicker wires.

• Use the correct solder

You need ROSIN core solder for soldering electrical connections. Do not use acid core

solder, because this solder is for applications such as plumbing and the acid will cause cor-

rode the wires and connectors.

• Use the correct size heat shrink tubing (if necessary)

Heat shrink tubing generally shrinks by 50%, so you will need tubing which is no larger than

twice the size of the wire and/or connector in order to ensure a snug fit.

• Allow the soldering iron/gun to warm up

Helicopter Electronics Mounting/Wiring

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Protech ZOOM 425 ccpm Spécifications Page 105