10
Stewart Filmscreen Corporation
Connecting the high-voltage switch control (vertical
masking)
A standard 3-position AC wall switch is supplied. The high-voltage control is
connected to the electrical source. It alternates directions of mask motion by
means of the hot lead, using the 3-position switch.
Preparing the connection
Before making the electrical connections, you need:
An available AC constant power source
A 4-conductor romex or motor connector cable
Making the connections
Figure 7 illustrates the connections.
1. Connect the wall switches to the AC constant power source.
2. Connect the wall switches to the unit’s electrical box.
Figure 7:
High voltage control wiring diagram
Door & Screen Switch
AC Power
Source
DOWN-Black
UP-Red
Line (Hot)
COMMON-White Neutral
Mask Switch
AC Power
Source
DOWN-Black
UP-Red
Line (Hot)
COMMON-White Neutral
GROUND-Green
GROUND-Green
Summary of Contents for ABT-EM Trapdoor ElectriMask Electriscreen
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