Lens Control Modes; Servomotor Mode - AMX AXB-PT101530 POSITRACK CAMERA CONTROLLER Instruction Manual

Specifications (Cont.)
DIP Switches:
Presets:
Relays:
Optical Centerline:
Environmental Parameters:
Enclosure:
Control Panel:
Battery:
Connectors:
Optional Accessories:

Lens Control Modes

The Servomotor and Motor modes are two Analog Voltage Control methods available on the
PosiTrack units.

Servomotor Mode

This method is generally used in broadcast or videoconference-style lenses. The voltage range used
for servomotor style lenses is +2.5 to +7.5 VDC. These lenses can be controlled in two different
modes: positional mode and speed mode.
AXB-PT10/15/30 PosiTrack Camera Controllers
• (S2) - RS-232 communication (baud rate)
• (S5) - AXlink communication (device #)
Stores up to 255 presets for pan, tilt, zoom, focus, and iris operations; 127 of
those presets return a status when queried.
Solid-state relays for servomotor lens mode control (zoom/focus speed/position
and iris local/auto)
Optical centerline is between 1/2" and 5" above the mounting plane of the cam-
era/lens (this allows the mounting of the camera/lens so that the tilt axis is
capable of going through the optical axis of the camera)
32° F to 120° F (0° C to 48.8° C) ambient temperature range
Metal with enamel and anodized matte finish
• RS-232 DB-9 connector (300 baud - 38.4 KB communication for camera
control)
• DB-15 high density connector (lens control)
• Lens power switch (powers or isolates the camera lens)
• AXlink 4-pin connector (provides AXlink, RS-232 stand-alone
communication, and power connection points)
Lithium battery to protect preset memory (up to 10 years)
• 4-pin captive wire (AXlink)
• DB-15 HD 15-pin high-density (female) for lens control
• DB-9 9-pin D-sub (male) for RS-232 camera control
• CC-CAM lens control cable (specify make and model)
• CC-CAM RS-232 camera control cable (specify make and model)
• Pedestal mount (PM-CAM, PosiTrack Pedestal Mount)
• PSN2.8 Power Supply (for use with the PT10 Camera Controller)
• PSN6.5 Power Supply (for use with the PT10/15/30 Camera Controllers)
- This power supply can be used with ALL PosiTrack units
• Tripod mount (TM-CAM, PosiTrack Tripod Mount Adapter)
• Wall-mount bracket (WM-CAM, PosiTrack Wall Mount)
Positional mode is the most common Servomotor mode. When voltage changes, the lens
moves and remains still until the voltage changes again. For example, if a lens receives a
voltage of +3 VDC, the lens moves to the corresponding position and stays there as long
as the voltage remains at +3 VDC. The movement speed of the lens motor is a function of
the PosiTrack unit's analog output. The lens servomotor receives the preset voltage when
a preset is recalled in the positional mode.
Introduction
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