AGFA d-lab.3 Digital Compact Lab

Repair
Scanner
FD/SD Output Stage (Film drive / Scanner drive)
The FD/SD output stage is a pure driver board of
the stepper motors for the film advance and the
Scanner carriage. The motors are 5-phase
motors. PLDs are used for the activation that have
to be programmed. The two connectors ST2 and
ST3 are provided for the programming.
The driver board gets the control signals via the
Motherboard. The motor signals are also
transmitted via the Motherboard.
If the output stages get too hot, the driver board
sends an error signal through the line TEMP_ERR
that can be processed by the FL Controller.
See FD/SD Output Stage and LEDs in
Register 4.1
FL Controller
− This is the central control processor for the
Scanner Hardware with an interface to the Main-
PC (connection via RS232).
− The commands received by the Main-PC are
either transmitted to other components via the
CAN-Bus, or they are processed by the FL
Controller itself.
− Control of motors, loads and sensors of the film
advance. The status of the motors and the film
can be checked by means of various sensors,
mainly light sensors.
− Control of the Prescanner. The TFS data is
transmitted to the Main-PC (Ethernet). To ensure
a clock-synchronous operation of the Prescanner
and the film advance or Scanner motor, these
clocks are divided and alternately sent to the
Prescanner.
− Monitoring of the voltages (by means of the AD
converter of C167) and the temperature of the
Scanner Hardware
− Master for CAN-Bus and I 2 C-Bus
See FL Controller and LEDs in Register 4.1.
AGFA d-lab.3 2001-01-02 /PN 9009 4.3.25