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Wiring a Up Down Switch for a Electric Projector Screen


How to Wire Motorized Big Screen Projector Switch



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How to Wire Motorized Big Screen Projector Switch
[ad#block]Electrical Question: I got a big screen that can roll up or down. I bought the relevant switch, up, down and stop buttons, but don’t know how to wire it.

This electrical question came from: Dawie, a Homeowner from Cape Town, Africa.
See more about Home Wiring for Africa

Dave’s Reply:
Thanks for your electrical question Dawie.

How To Wire Motorized Projection Screens
Dawie, first of all, we must understand that there are more than one type of Big Screens or Motorized Projection Screens, and because you did not identify which one you have we will have to cover the different types of Motorized Projection Screens, because it does make a difference with the wiring.

First, let’s cover the Motorized Screen Wiring Techniques and the basic parts that are involved:
The Video Projection Unit
Motorized Roll-Down Screen

Control Options for the Motorized Roll-Down Screen

Types of Control Interface  Switches

 

All of these types of switches must be compatible with the motorized roll up screen unit that you have, however typical projectors and motorized big screen units have a Control Interface which is the connection point that makes all the functions work.

Connections for a Basic Electric Projection Screen without a control interface –  typical wiring at the screen motor are as follows:

Please Note: Always Identify Your Specific equipment and parts and read your Owners Manual and Installation Manual. The voltage of your specific equipment and the voltage at your specific location may be different. Keep in mind that I am located in the USA, and this question came from Cape Town Africa. All countries do not have the same voltage and electrical systems. See World Electrical Systems

RESOURCES

How to Wire a Switch
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Wiring a Light Switch – Diagram 1

Wiring Diagrams

Fully Explained Light Switch Wiring Diagrams. Detailed Electrical Wiring Diagrams and Pictures assist your Home Electrical Projects.

Electrical Wire for the Home

Guide to Home Electrical Wire
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Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

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Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

Electrical Tips to Help You Wire it Right

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.


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FAQs Frequently Asked Questions and Comments

2 Responses to “Wiring a Up Down Switch for a Electric Projector Screen”
  1. Ralph Bejjani says:

    I was trying to connect a Wemo Maker to my motorized projection screen but I don’t understand the circuitry I have in front of me.

    Could you please tell me what it is and where to connect my 2 “relay” wires of the Wemo Maker.

    I have pictures of the circuit, let me know how to send them to you.

  2. Dave Rongey says:

    Hi Ralph,
    The relay of the WeMo Maker is basically a set of contacts that act as a switch. The wiring of a device such as a motorized screen would be connected to the WeMo Maker for it to be the source of control.
    Please note that the electrical rating of the WeMo Maker relay must be compatible with the motorized projection screen switch circuit to avoid damage to the WeMo Maker.
    I hope this helps,
    Dave