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Watkiss BookMaster Service Manual - Issue 1 - 14/12/00
63
4.2.2 900-152b, Position Motor Control Board (PIC)
A position motor control board (PIC board) is used for controlling each axis in
the BookMaster Pro and the TrimMaster Pro.
Axis Calibration:
The adjustment axes are automatically calibrated periodi-
cally by a ‘home sequence’ as follows:
• Motor moves in reverse (widening sidelay gap, increasing fold position
etc.)
• Home microswitch is triggered and the motor is stopped
• Motor moves forward until microswitch is released
• Axis position is zeroed
Note: If the home microswitch is broken or missing the motor will drive for-
ward for approximately 3 seconds.
Full details of the diagnostics for the PIC board may be found in Chapter 8
‘‘Trouble Shooting’’ (see section 8.3.1 ‘‘Position Motor Control Board’’).
DESCRIPTION
PL1
Data/Power Bus
PL2 Programming
Interface
PL3
Axis Motor
PL4
Home/Limit Microswitch
LED1
Diagnostic LED - see notes below
SW1
Button switch for diagnostics - see notes below
Table 4:3 Position Motor Control Board Layout
Figure 4:2 Position Motor Control Board (900-152b) Layout
Summary of Contents for BookMaster
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