4 Stewart Filmscreen
ABOUT CVM
About CVM
The Stewart CVM masking / screen controller is a bi-directional device capable of controlling multiple
motors while providing instant recall of pre-selected viewing settings. It can be controlled by a
dedicated wired keypad, serial communication, remote IR or IP (Internet Protocol). There are many 3rd
party serial drivers available; AMX, Crestron, Control4, Elan, On Controls, RTI, etc.
The CVM board electrically operates by an on board universal power supply that automatically accepts
100 to 240 VAC input. Only connect / match same voltage motors for your designated power input.
Mounting
Secure the CVM control box to a location near the Stewart screen. The encoder signaling cables are
length sensitive and therefore the control set must reside near the screen. The factory has pre-wired the
motors and encoder lines to the control box. DO NOT CUT, SPLICE OR LENGTHEN THESE CABLES. Do
not coil the excess encoder cables as this could lead to EMI. Also, avoid placing encoder cables directly
adjacent to motor’s AC power leads (do not use cable ties).
Power Up & First Time Testing
For some Stewart framed masking products, do not attach the main screen to the frame until you have
run all the cabling and tested the masking motors.
After the frame or screen housing has been installed, connect all encoder wires as needed. The factory
has installed colored Molex connectors on each white AC motor cable. Simply match these colors with
the same colored Ethernet cables and plug into the appropriate motor encoder. Improperly connected
encoder leads will cause faulty control of the motors. Also at this time make sure the wired keypad is
connected as well as any 3rd party control leads or IP Ethernet cables.
Plug in the CVM’s main AC power cord and wait approximately 30 seconds before sending any
commands. This time frame allows the controller to perform an internal status check. The on board red,
green & blue LEDs will cycle and when ready for normal operation you will see a steady blinking blue LED.
If you are using serial or IP control, this blinking LED will be green.
At this time you can begin to operate the CVM control system. For enhanced testing, control and bi-
directional feedback, use the Pilot application software thru the IP port.
