Hitachi RX - Input;Output (I;O) Specifications

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