1 Ãberschrift 1 - Audio Intervisual Design, Inc.
1 Ãberschrift 1 - Audio Intervisual Design, Inc.
1 Ãberschrift 1 - Audio Intervisual Design, Inc.
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3.3.1 Drive Units<br />
feed / bottom drive<br />
(main drive)<br />
feed drive gear<br />
intermittent sprocket drive<br />
bottom drive gear<br />
sound shaft drive<br />
FP 30 EC and FP 38 EC have four<br />
different drive systems:<br />
- intermittent sprocket drive<br />
- feed / bottom drive<br />
- friction drive<br />
- sound shaft drive<br />
Figure 3-36<br />
Drive units<br />
3.3.1.1 Intermittent Sprocket Drive<br />
motor<br />
encoder<br />
fan<br />
The intermittent sprocket drive<br />
elements are:<br />
- intermittent sprocket motor<br />
with encoder<br />
- power supply unit (, Figure. 3-39)<br />
- amplifier (, Figure 3-39)<br />
- phase regulator V/N (, Figure 3-39)<br />
- reference value generator<br />
(, Figure 3-39)<br />
- encoder in main drive motor<br />
(arrow, Figure 3-38)<br />
Figure 3-37<br />
Intermittent sprocket drive unit<br />
Via pulses the encoder counts quantity<br />
of film (transport unit = 1 picture),<br />
which is transported out of feed<br />
sprocket into film gate.<br />
If one “transport unit” is completely<br />
counted and shutter position is dark<br />
the motor of intermittent sprocket<br />
carries on film for one picture.<br />
Figure 3-38<br />
Feed / bottom drive motor (main drive motor)<br />
3-36<br />
Issue: 10/2003
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