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(8) CPU circuit board
The signal of each sensor is input from the I/O
circuit board. In addition,the signal of each
cylinder is output to the I/O circuit board.
The power is supplied form the power
circuit board. (5 VDC and 12 VDC)
The memory backup battery.
CPU (8085) controls the indexer and its components.
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The CPU circuit board is mainly used for controlling the stepping motor. It serves as a
timer for transferring the stepping time of the stepping motor to the CPU (8085)
ROM (27C256)
Mainly indexer control programs are stored.
RAM (5565)
This is the input port to transmit the signal
of the panel SW to the CPU (8085).
Main CPU (8085)
This is the output port to transmit the signal
of the CPU (8085) to LCD and LED.
This inputs the SW signal (mainly
operation,etc.) from the panel and
outputs the lighting signal to the LED. In
addition,this outputs the display data to
the LCD.
Used for maintenance
This inputs the SW signal (mainly
operation, etc.) from the panel and
outputs the lighting signal to the LED.
Switch for function setting
This switch is used to change from
English to Japanese or mm to inches
and vice versa.
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