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Technology > Power Supply > Power Supply Route (Saddle Stitcher Unit) > Protection Function
Technology > Power Supply > Power Supply Route (Saddle Stitcher Unit) > Protection Function
Power Supply
Power Supply Route (Finisher Unit)
■
Power Supply Route
When the power of the host machine is turned on, 24VR and 24VU are supplied from the host
machine to the Finisher controller PCB.
24VU is used to drive motors and solenoids, and 24VR is converted into 5VDC by the
regulator IC (IC3) on the Finisher controller PCB and used to drive the sensors on the PCB.
Furthermore, it is converted into 3.3VDC by the regulator IC (IC26) on the Finisher controller
PCB and used to drive the ICs on the PCB.
Both 24VR and 24VU are also supplied from the Finisher controller PCB to the Saddle
Stitcher controller PCB.
If the Puncher unit, which is an optional, is installed, they are supplied to the punch controller
PCB as well.
24VU power for motor drive is shut down when the front cover switch (MSW101) is open.
This is not applicable for 24VU power for the optional puncher unit.
Saddle stitcher
controller PCB
Front cover
switch (MSW101)
Finisher controller PCB
Punch controller PCB
(Puncher Unit (option))
24VR
24VU
3.3V
5V
24V
24V
24V
Motor
Solenoid
Sensors
Logic
Motor
(IC26)
Regulator IC
Host
machine
(IC3)
Regulator IC
■
Protection Function
The 24 VDC for motor and solenoid drive has a fuse or motor driver with over-current
protection function for over-current protection.
F-2-83
Power Supply Route (Saddle Stitcher Unit)
■
Power Supply Route
24VR and 24VU are supplied from the finisher controller PCB as saddle stitcher power when
the power switch of the host machine is turned on with the door closed.
24VU is used to drive motors and solenoids.
24V power supply to solenoids is supplied from the Finisher controller PCB without passing
through protection mechanisms such as microswitches.
24VR is converted into 5VDC by the regulator IC (IC6) on the Saddle Stitcher controller PCB
and used to drive sensors, and then converted into 3.3VDC by the regulator IC (IC23) on the
Saddle Stitcher controller PCB and used to drive the ICs on the PCB.
24VR
24VU
24V
FUSE
(FU3)
Front cover
switch
(MSW101)
Regulator IC
(IC6)
Regulator IC
(IC23)
3.3V
5V
Motors
Solenoids
Sensors
Logic
24V
24V
Finisher
controller
PCB
Saddle stitcher
controller PCB
■
Protection Function
The 24 VDC for motor and solenoid drive has a fuse (FU3) or motor driver with over-current
protection function for over-current protection.
F-2-84
Summary of Contents for J1
Page 4: ...Blank Page ...
Page 8: ...Safety Precautions Notes Before it Works Serving Points to Note at Cleaning ...
Page 58: ...3 3 Periodic Servicing Periodic Servicing List of Work for Scheduled Servicing ...
Page 99: ...5 5 Adjustment Adjustment Outline Basic Adjustment Adjustment at Time of Parts Replacement ...
Page 133: ...Appendix Service Tools General Circuit Diagram ...