Power and Control
32
Plockmatic PowerSquare™ 224 - Service Training Workbook
10.2
Control
The 900-208 Main Control PCB is the interface between the GUI screen, the
CPU and all the input and output functions of the machine.
The PCB has a split 28V DC supply protected by three fuses that reset on
power-off.
Red
LEDs
indicate output function.
Green
LEDs indicate sensor and input functions.
The main control software is programmed into the IC on this PCB. The version
number is displayed on the GUI screen during power-up.
Refer to the following:
• 7.2.1 (Block Diagram for the PSQ)
• 7.2.3 (Block Diagram for the Gathering Area)
• 7.2.4 (Block Diagram for the Rotator)
• 7.3.1 (PSQ Main Control PCB Wiring Diagram)
• 7.3.2 (Rotator Wiring Diagram)
• 7.3.4 (Gathering Area Wiring Diagram)
• 7.7.1 (900-208 Control PCB)
Advanced Operation
Plockmatic PowerSquare™ 224 - Service Training Workbook
17
Note:
A dirty sensor or a sensor covered by paper trimmings will give a jam
error.
Paper jams that require service intervention are:
• If the former clamp does not open, manual operation with the hand crank is
needed (see Section 6.20.3 in the PSQ Service Manual).
• If the trimmer paper clamp remains closed and the trimmer blade remains in
the forward position, the trimmer needs manual operation (see Section
6.20.4 in the PSQ Service Manual).
5.4
Book Quality and Machine Specifications
• Quality tolerance specification is included in this training workbook
(see
Section 16.)
• Product specification is included in this training workbook
(see Section 15.)
