What is it?

The Low Voltage Control (LVC) is an electronic device used to operate an electric screen motor using Class 2 wiring. In this manner multiple types of switching devices can be connected to the LVC to control the electric screen. 

What does it do?

The LVC provides low-voltage motor control using three different methods:

1. Contact closure
2. Infra-Red (IR), and
3. Radio frequency (RF)

A low voltage switch can be connected that will control a motor with a push of a button. In addition, third-party control networks using contact closure relays can be utilized in conjunction with a wall push button switch.  Or, if remote control is desired, the LVC control can be connected to either a radio receiver or infrared sensor.

What screen models use it?

Most small retractable electric screens including: 

• Cascade G1 and G2
• Stealth
• LX
• Large electric screens (commercial)

How to connect low-voltage connections?

1. Connect the three-button momentary switch (supplied by Stewart Filmscreen) to the switch input terminal block. Use a "4 – conductor" hook up cable and follow the diagram that is located on the white label inside the metal housing.
   • This input terminal (also known as a "contact closure") will also accept signals from other devices such as computers, or audio video control systems.
   • Multiple switches and/or relays can be used simultaneously as long as they are wired to this input in parallel and use only momentary switching operation.
   • Improper wiring or the use of “latched” switches will present control problems.
2. If infra-red (IR) control is used, connect the IR eye sensor to the small black plug-in terminal located next to the switch input on the circuit board.
3. If a radio frequency (RF) remote module is used, connect it to the radio input port that is located adjacent to the IR input on the circuit board.

How to connect line connections?

1. Connect the motor power leads and the AC line voltage to the power strip terminal block located at the top side of the circuit board. Follow the diagram that is printed on the white label adjacent to this input block.
   • It is advisable to use spade terminals to terminate these connection wires.
2. Once all connections have been made and the main AC power is activated, you can test the system using the three small black push buttons that are located on the lower left edge of the circuit board.
   • Trouble Shooting TIP: Should there be an “open or short” presented at the low voltage input terminals, the LVC / motor will not function. Therefore, disconnect the switch input wires from the terminal and test the control / motor using only the three test buttons.
   • If the motor / control operates correctly, then you will need to locate the switching fault at the switch, third-party controller or wiring connections.

Electrical Specifications

Voltage Ratings:

Electrical specifications may change without notice.

Enclosure Dimensions

• 10 ½” Length
• 4 ½” Wide
• 2 ¼” Height
• Weight 3 LBs

115V Wiring Diagram

230V Wiring Diagram