THEORY GUIDE Logic and Control
10DEC05
TG4825-1
Page
96 of 120
SLOW SCAN
CONTROLLER - A6
A microprocessor-controlled BOARD that controls the operation of
the SLOW SCAN MOTOR. The SLOW SCAN CONTROLLER
BOARD A6 controls all vertical motion of the PLATE in a continual
motion. This motion is at a right angle to the direction of the
horizontal fast scan motion of the LASER.
The SLOW SCAN CONTROLLER BOARD A6:
• connects with the MSC BOARD A1 using an RS-232 serial
interface
• connects to the COIL BOARD A7 in the SLOW SCAN MOTOR to
drive the COILS and read the HALL EFFECT SENSORS
• connects to the ENCODER at the bottom of the SLOW SCAN
MOTOR ASSEMBLY
COIL - A7 Includes 6 triangular-shaped WIRE COILS around the CENTRAL
SHAFT of the SLOW SCAN MOTOR. At the outside edge of the
COILS are 3 HALL EFFECT SENSORS. These components work
with the SLOW SCAN CONTROLLER BOARD and the MAGNET of
the SLOW SCAN MOTOR to rotate the MOTOR.
CAM SENSOR - A8 Includes 2 SENSORS, the CAM INNER SENSOR S10 and CAM
OUTER SENSOR S11 that read the position of the DUPLEX CAM
determined by the status of the HOME and POSITION FLAGS -
blocked or not blocked. It then provides the position to the MSC
BOARD A1, which controls the next motion of the DUPLEX CAM,
determined by the current position of the DUPLEX CAM.
BOARD Description
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