I/O Circuit Board - JUKI ACF-164-1903 Engineer's Manual

Button attaching indexer
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(9) I/O circuit board

Signal of each sensor is entered from the
machine head and the BR.
This is the output port to control the
machine head and the BR.
Signals of the sensors output from the
indexer are input here.
This is not used.
This is the CPU used to control the
machine head and the BR.
ROM (27C256)
The control program of the machine
head and BR is written in it.
The power is supplied from the power circuit board.
(5 VDC,12 VDC and –12 VDC)
A 24 VDC and 33VDC are supplied from
the power circuit board.
This is the output used to turn ON / OFF the oscillating
of the feeder.
This is the output used to drive the magnet, valves and
motor of the machine head and BR.
This is the output used to drive the valves
of the machine head.
This is the output used to drive the indexer valve.
This is the output port used to transmit the CPU (8085)
signal to the valves.
This is not used.
This is the input port used to transmit the signal of each
sensor to the CPU (8085).
This outputs the signal of each sensor to the CPU circuit
board. In addition, the signal of each cylinder is input from
the CPU circuit board.
This is the solid state relay used to drive the
conveyer motor.
This is the output used to drive the conveyer motor.
This output the signal commanding normal rotation or
reverse rotation to the stepping motor driver unit.
96

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