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MX-FN18 OPERATIONAL DESCRIPTION 6 – 2
4
7. Power supply system
A. Power supply route in finisher
The finisher controller PCB is supplied with two power supply sys-
tems, 13 VDC and 24 VDC, when the host machine is turned on.
The 24 VDC power supply system is intended for drive of the
motors and solenoids. As for the 13 VDC power supply system,
after the power is converted to 5 VDC by the regulator IC (IC28) on
the finisher controller PCB, it is used for drive of the sensors. After
it is converted to 3.3 VDC by the regulator IC(IC7) on the finisher
controller PCB, it is used for drive of the IC in the PCB. Power from
the power supply systems is supplied to the saddle stitcher control-
ler PCB from the finisher controller PCB.
The power is also supplied from the finisher controller PCB to the
saddle stitch controller PCB. In addition, it is also supplied to the
punch controller PCB when the optional punch module is mounted.
Some of the 24 VDC power used to drive motors is cut off when the
front/cover close detector switch (FFDD) is open. Figure shown
below is a block diagram showing the power supply system.
tems, 13 VDC and 24 VDC, when the host machine is turned on.
The 24 VDC power supply system is intended for drive of the
motors and solenoids. As for the 13 VDC power supply system,
after the power is converted to 5 VDC by the regulator IC (IC28) on
the finisher controller PCB, it is used for drive of the sensors. After
it is converted to 3.3 VDC by the regulator IC(IC7) on the finisher
controller PCB, it is used for drive of the IC in the PCB. Power from
the power supply systems is supplied to the saddle stitcher control-
ler PCB from the finisher controller PCB.
The power is also supplied from the finisher controller PCB to the
saddle stitch controller PCB. In addition, it is also supplied to the
punch controller PCB when the optional punch module is mounted.
Some of the 24 VDC power used to drive motors is cut off when the
front/cover close detector switch (FFDD) is open. Figure shown
below is a block diagram showing the power supply system.
B. Protect functions of finisher
The 24 VDC power line used to drive motors and solenoids is
equipped with a fuse or motor driver having overcurrent protector.
equipped with a fuse or motor driver having overcurrent protector.
C. Power supply route in saddle stitcher
When the host machine power switch is turned ON while the door
is closed, 24VDC and 13VDC power lines are supplied by the fin-
isher controller PCB.
The 24VDC power is used to drive of both the motors and sole-
noids. The 24V power to solenoids is supplied from the finisher
controller PCB without passing through any protective mechanisms
(microswitches, or the like).
The 24V power to motors, on the other hand, will not be supplied if
any of the three door switches is open.
As for the 13 VDC power supply system, after the power is con-
verted to 5 VDC by the regulator IC (IC512) on the stitcher control-
ler PCB, it is used for drive of the sensor. After it is converted to 3.3
VDC by the regulator IC (IC10) in the saddle stitcher controller
PCB, it is used for drive of the IC in the PCB.
is closed, 24VDC and 13VDC power lines are supplied by the fin-
isher controller PCB.
The 24VDC power is used to drive of both the motors and sole-
noids. The 24V power to solenoids is supplied from the finisher
controller PCB without passing through any protective mechanisms
(microswitches, or the like).
The 24V power to motors, on the other hand, will not be supplied if
any of the three door switches is open.
As for the 13 VDC power supply system, after the power is con-
verted to 5 VDC by the regulator IC (IC512) on the stitcher control-
ler PCB, it is used for drive of the sensor. After it is converted to 3.3
VDC by the regulator IC (IC10) in the saddle stitcher controller
PCB, it is used for drive of the IC in the PCB.
D. Protect functions of saddle stitcher
The 24 VDC power supply used for motors and solenoids is
equipped with a circuit breaker (CB1). The 24V power supply used
to drive the guide motor (FSGM), alignment motor (FSJM), and the
paper positioning plate motor (FPPM) is equipped with a fuse
designed to blow when an overcurrent flows.
equipped with a circuit breaker (CB1). The 24V power supply used
to drive the guide motor (FSGM), alignment motor (FSJM), and the
paper positioning plate motor (FPPM) is equipped with a fuse
designed to blow when an overcurrent flows.
Front cover close
detection switch (FFDD)
Saddle stitcher
controller PCB
Finisher controller PCB
Host
machine
Motor
Motor
Solenoids
Sensor
system
Logic
system
Regulator IC
Regulator IC
(IC28)
(IC7)
Punch controller PCB
(Punch module (optional))
Front cover close
detection switch (FFDD)
Finisher
controller
PCB
Circuit
breaker
(FU3)
Regulator IC
Regulator IC
Logic
system
Sensor system
Motor system
Motor system
Motor system
Solenoid system
Saddle stitcher controller PCB
Inlet door
switch (FSINDSW)
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