Wiring the Control Box

Wiring the Control Box


Simple Circuit

Battery Conductor(s)

Resistor

Circuit Review


Battery

Conductors

Resistor

Circuit Review


-Current has 1 path-Voltage is divided up to each resistor-Current is the same through each resistor

-Current breaks up along multiple paths-Voltage across each resistor is the same-Current is divided up to the resistors

Circuit ReviewSeries Parallel


Series

Parallel

12 V

12 V3 V 3 V 3 V 3 V

12 V 12 V 12 V 12 V

What circuit do we want?


• Wires from tether:– 8 wires coming into control box– 2 wires for each switch (+/-)

• Wires from battery– 2 wires coming into box– Connected in parallel to each switch

• 4 switches• Box

Wiring the Control Box:Components

Wiring the Control BoxThe Control Box

Wiring the Control BoxSwitches



Wiring the Control BoxWiring the Control BoxGet out your colored pencils and control box diagrams!

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

1 23

4 56

Wiring the Control BoxWiring the Control Box

12

3

4 5 6

7

8


Parallel circuit


1

2

3

4

5

6

7

8


Parallel circuit




Stripping Wires

Trying “wiring” your control box using string

Wiring the Control Box:Another pre-activity

Stripping Wires

Use strippers for stripping plasticand exposing the wire as indicatedin the essentials presentation.

Wiring Reminders

Crimping

• Once the wire is firmly crimped, secure with electrical tape.

• 8 spades are needed to connect your red wires (same for the black set)

• To crimp the wires line them up next to each other and gently twist into metal ring until you can see both wires at other end.

• Use the crimping part of your red wire cutter/crimper.

• Make sure that you squeeze the metal ring and not just the plastic.

Wiring Reminders

Wiring the Control BoxStart with the Red Wire

• Measure distance between contacts.• Cut 8 red wires and 8 black wires.• Wire 1 has to be long enough to go through

control box to the battery

8

12

3

4

56

7

Wiring the Control BoxThen the black…

• Once you have crimped together both your black and red wires you can attach the spades to the contacts.

Wiring the Control BoxThen the motors…

• Attaching the propellers• Use 8 of the blue spades • Use the same stripping and

crimping technique• Note which color wires go to

each switch/propeller


Wires from a motor

Wires from battery source

What it all looks like!

Wiring the Control BoxWhat it all looks like!

Wiring the Control BoxWhat it all looks like!


• Control Box Helpful Tips:– Label the switches (inside and outside the box)

as up/down, right, and left– Write down which color wires connect to which

motor on the ROV– Connect all the wires together to the spades first,

then plug the spades into the switches– Draw a diagram of which color wires connect

where on the switches. If anything falls out, then it can easily be reconnected.

– If a motor is turning the opposite direction desired, swap the 2 colored wires to opposite sides.



• Control Box with your Club:• 2nd and 3rd year teachers:

– What activities have your tried with your students?

– Other tips?


Documents

Wiring the Control Box