Videoswitch VT - Manual (Page 14)

VT Series 2 User Manual Page 14
Videoswitch
VT601c.doc
[SET], [FOCUS
↑
] and [Preset 1, 2, 3, 4, 5, 6, 7 or 8]
The higher the number selected, the faster the focus rate.
7.6 Zoom Polarity
If, when the upper and lower zoom keys are pressed, the zoom acts in the opposite direction to that
expected, the polarity may be reversed:
To select normal polarity press:
[SET], [ZOOM
↑
] and [Joystick Up]
To select reverse polarity by press:
[SET], [ZOOM
↑
] and [Joystick Down]
7.7 Iris Polarity
If, when the upper and lower iris keys are pressed, the iris acts in the opposite direction to that expected,
the polarity may be reversed:
To select normal polarity press:
[SET], [IRIS
↑
] and [Joystick Up]
To select reverse polarity by press:
[SET], [IRIS
↑
] and [Joystick Down]
7.8 Focus Polarity
If, when the upper and lower focus keys are pressed, the focus acts in the opposite direction to that
expected, the polarity may be reversed:
To select normal polarity press:
[SET], [FOCUS
↑
] and [Joystick Up]
To select reverse polarity by press:
[SET], [FOCUS
↑
] and [Joystick Down]
7.9 Preset Training
When a receiver is first installed, or if any changes are made to the wiring of presets, the preset training
sequence should be run.
The training sequence moves the pan and tilt head left, right, up and down, and exercises the lens
functions. The receiver monitors the movement and determines whether presets are installed, which of the
functions have preset potentiometers, and whether the voltages from the preset potentiometers increases
or decreases for a given direction of motion.
To instigate the training sequence, press the following keys:
[SET], [IRIS
↓
] and [ZOOM
↓
]
7.10 Preset Patrol Timer
The preset patrol dwell timer is set by issuing a command to start a timer, then issuing another command
to stop it. The amount of time that is allowed to elapse between the start and stop commands is