VARIZOOM VZ-WFF Instruction Manual - page 6
Transmitter Controls
Control Knob
: Each Transmitter has one main control knob,
either a rotary knob or a linear slider. Once the lens
drive motor has been calibrated to the lens at the
Receiver/Amplifier, end-to-end travel of the knob
moves the lens through the range set during
calibration. The travel can be set to be the entire
range of lens movement or between two
intermediate points, as desired by the operator. An
important point to note is that
the smaller the range
of travel of the motor, the more accurate the
system becomes.
(This is the opposite of all other
systems currently in use, which have either a fixed
accuracy or get less accurate as the range is
reduced)
POWER
Switch: The power switch turns power on and off to
the Transmitter.
FWD/REV
Switch: This switch reverses the direction of travel
of the lens drive motor in response to a
movement of the control knob. The
forward/reverse designations are completely
arbitrary, so simply choose whichever
matches the operator’s needs.
The motor
calibration does not need to be redone
when the direction is changed
.
MOM/CONT
Switch: This switch is used to select the desired
operation of the camera run/stop long as the
camera is running.
pg. 6
When I switch
the transmitter on the light on the receiver turns
green but moving the knob on the transmitter doesn’t make
the motor move.
The most likely cause of this is that both calibration knobs are in
the start position (rolled all the way towards each other). This
makes the range of motor travel nothing. Follow the calibration
procedure on page 6 first try moving the knob on the transmitter.
When I switch the camera to “RUN”, it moves a little and
stops.
Set the “CON/MOM” switch to “CON”. See page 3 for a description
of this switch’s operation.
When I switch the camera to “RUN” it stops, and when I set it
to “STOP” it runs.
This can occur when using a camera that has one pushbutton for
both starting and stopping the camera. When the switch on the
WFF is set to “RUN” it momentarily closes a relay to simulate the
camera button being pushed. It does the same thing when set
back to “STOP”. If the camera was already running when the
switch was set to “RUN” it will cause the camera to stop and vice-
versa. To get the camera and WFF back into synchronization start
(or stop) the camera one time by using the pushbutton on the
camera instead of the WFF.
When the signal is just barely getting through (LED flickering
between red and green) the motors will occasionally twitch or
jump.
This can be fixed by upgrading your software. Contact us for more
details.
pg. 19