Theory of Operation
1C7833 – July 1995
3–9
Operation of the SORTER Transport
The 100 BOARD powers an infrared LED on SENSOR U11 mounted next to an ENCODER WHEEL/
SPROCKET on the MAIN DRIVE SHAFT of the PROCESSOR. The ENCODER WHEEL/
SPROCKET has alternating holes and reflective material, which the infrared energy passes either
through or reflects back to SENSOR U11. This generates a 5 volts pulsed ouput from U11 at
approximately 26 - 30 Hz (for 63 in./min). This pulsed signal passes through the 100 BOARD to the
500 BOARD. The frequency is monitored by the software on the 500 BOARD.
The software sends a control-voltage signal (0 - 5 volts) from the 500 BOARD through the
100 BOARD to the MOTOR CONTROLLER. A speed SENSOR in the DRIVE MOTOR of the
SORTER sends a pulsed 5 volts signal (nominal frequency of approximately 350 Hz
±
10 Hz for 63 in./
minute) through the 100 BOARD to the 500 BOARD. This signal is monitored by the software which
raises (increases the speed of the SORTER) or lowers (decreases the speed of the SORTER) the 0 -
5 volts control voltage until the SORTER transport matches the transport speed of the PROCESSOR.
The nominal control voltage is approximately 4 volts (for 63 in./minute).
Figure 3–7
Operation of the SORTER Transport
H127_0005HC_
Motor
Sorter
180 Speed In
Sorter Speed Control
Sorter Speed Feedback
Processor
4
26
+5V
+5V Return
500 Board
P/J123
J/P508
J/P53
5
4
3
2
1
100 Board
U11
Speed
Sensor
31
33
32
34
30
J/P123
+5V Return
+5V
5
2
7
1
J/P4001
J/P111
Controller
Motor
5V
24
10
23
1
J/P123
J/P505
J/P504
Содержание Kodak X-Omat 180 LP
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