Stewart Filmscreen
– Visionary
15
OPTIONAL LOW VOLTAGE CONTROL (LVC)
The Stewart Filmscreen Low Voltage Control provides low voltage motor control using three
different methods (contact closure, IR or RF). A low voltage switch can be connected that will
control a motor with a push of a button. 3
rd
party control networks using contact closure relays can
be utilized as well. Or, if remote access is desired, either a radio receiver or infrared sensor can
be connected.
Getting started
Before making the electrical connections, you need:
An available AC constant power source
A 4-conductor switch hook up cable (4-conductor bell wire or cat 5 cable is typically used for
long runs).
o
Cat 5, multi-conductor unshielded, similar type electronic cable can be used to connect
the 3-button switch to the LVC. The recommended wire gauge is 20 to 24 AWG. Use
plenum rated cable when required.
Making the connection
1. Mount the low voltage control box near the screen.
2. Connect the low voltage control box to the screen by connecting the
screen motor power leads to the power strip terminal block located on
the circuit board of the control box (see Figure 10).
3. Connect the low voltage control box to the AC power source by
connecting the AC line voltage to the power strip terminal block located
on the circuit board of the control box.
4. Connect the switch to the low voltage control box.
5. A parallel connection to an outboard audio visual switching network
can be made at this time.
Figure
10
. LVC wiring diagram
for 3 position wall switch
