Hitachi PB - Controller Part

3-3
3.2 Controller part
●This section shows the functional overview of electric parts/control board in the
controller block, switch settings, a list of check points/LEDs, and cautions on
replacement.
3.2.1 EZJ102 board (controller board)
【Function】
●Creates print data and manages it.
●Manages calendar.
 ●Controls the display block.
●Controls Memory card (CF card).
●Controls the touch panel.
●Internalcommunication I/F with engine block.
●The I/F signal with conveyer are connected.
[SW1]



SW1
Setting
Default
(when
shipped from
the factory)
Bit1
Set according to the encoder specifications. 
ＯＮ
Bit2
(See the settings for different specifications shown below.)
ＯＮ
Bit3 ＯＮ
Bit4 ＯＦＦ
Bit5
Set the power supply from IJ printer to print target
sensor.
・When supplying power from IJ printer: Set to ON
・When supplying power from external exclusive power:
Set to OFF

ＯＮ
Bit6
Spare (Set to OFF)
ＯＦＦ
Bit7
Spare (Set to OFF)
ＯＦＦ
Bit8
Spare (Set to OFF)
ＯＦＦ

・When supplying power from IJ printer:
Set SW1 as shown in the table below according to the output type of
rotary encoder:
Output type
SW1-1 SW1-2 SW1-3 SW1-4
Totem-pole
OFF ON ON ON
Open collector
ON ON ON OFF

・When using external exclusive power supply:
Set SW1 as shown in the table below depending on the power voltage,
regardless of the output type of rotary encoder:
Power voltage
SW1-1 SW1-2 SW1-3 SW1-4
DC12V OFF ON ON OFF
DC24V OFF OFF ON OFF

●Check points/LED
Symbol
Name Content
TP4 MTXD
Engine communications (send data)
TP5 MRXD
Engine communications (receive data)
TP7
Encoder-N Encoder input (“L” when signal is input)
TP8
Print target sensor-N Print sensor input (“L” when signal is input)
TP9
Floating
GND
Reference ground of external photocoupler
insulating circuit (on conveyer side)
TP60
GND Reference ground of IJ printer-side circuit
ON
OFF
ON
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