Input/Output (I/O) Specifications - Hitachi UX Twin-Nozzle Technical Manual

4.3 Input/output (I/O) specifications

When handling external signals, observe the voltage, current, and time given in this manual.
Operation is not guaranteed if external signals are not handled properly. If external signals are not handled
properly, it may damage the board and operation is not guaranteed.
[Input / Output Signal Specifications]
(1) Input signals (external device →IJ printer)
No. Signal name
Print object
1 Indicates the arrival of a print object.
detection
Issues instructions so that printing does
Printing stop
2 not start even if a print object is
detected.
Issues instructions so as to change the
Reciprocative order of characters to be printed.
3
printing OFF:Transport in normal direction
ON :Transport in reverse direction
Encoder
Makes a pulse entry in proportion to the
4 (for speed
print object transport speed.
follow-up)
Functionally the same as the RUN key
on the operator panel.
5 Run *2)
Performs processing from "ink
injection" to "ready to print"
Functionally the same as the Reset key
and the Message Delete key on the
6 Reset
Error Message window.
Resets an error.
Functionally the same as the STOP key
on the operator panel.
7 Stop
Stops injection of ink (automatic
flushing).
Functionally the same as the Deflection
Voltage Control function in a message
which appears when the CONTROL
High voltage
8 key on the operator panel is pressed.
ON/OFF
The deflection voltage is turned on
(Ready) and off (Standby) alternately
each time this signal is entered.
*1) The current supply capacity of +24V for Print object detector and encoder is up to 100mA in total.
*2) RUN signal instructs to inkjet ink. Handle the signal with care.
*3) Ensure that the external device transistor leak current doesn't exceed 0.1mA while the input signal is OFF.
Function
Electrical characteristics
+NPN input
+24 V output (Up to 100mA *1)
ON state : ON state :
I out : 12 mA max.; I in(at24V): 12 mA max.
OFF state: OFF state:
Vout : 24 V *3) V in: 1V max. *3)
ON state : ON state :
I out : 6 mA max.; I in(at24V): 6 mA max.
OFF state: OFF state:
Vout : 24 V *3) V in: 1V max. *3)
ON state : ON state :
I out : 6 mA max.; I in(at24V): 6 mA max.
OFF state: OFF state:
Vout : 24 V *3) V in: 1V max. *3)
+24 V output (Up to 100mA *1)
NPN open collector Totem pole
ON state : ON state :
I out : 20mA max.; I in(at24V): 20mA max.
OFF state: OFF state:
Vout : 24 V *3) V in: 1V max. *3)
ON state : ON state :
I out : 6 mA max.; I in(at24V): 6 mA max.
OFF state: OFF state:
Vout : 24 V *3) V in: 1V max. *3)
ON state : ON state :
I out : 6 mA max.; I in(at24V): 6 mA max.
OFF state: OFF state:
Vout : 24 V *3) V in: 1V max. *3)
ON state : ON state :
I out : 6 mA max.; I in(at24V): 6 mA max.
OFF state: OFF state:
Vout : 24 V *3) V in: 1V max. *3)
ON state : ON state :
I out : 6 mA max.; I in(at24V): 6 mA max.
OFF state: OFF state:
Vout : 24 V *3) V in: 1V max. *3)
●Input/output (I/O) specifications 4-8
PNP input