Hitachi IJ RX2, Service Manual

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3-20
3.3.7 EZJ127 board (I/O board)
[Function]
- The I/F signal with the conveyer is connected.
Output signal: Ready, Fault, Warning, Printing-in-progress/Print-complete, On-line,
Universal output 1, Universal output 2
Input signal:
Print target detector, Print stop, Reciprocative printing,
Encoder (for product speed matching),
Deflection voltage ON/OFF,
Run, Reset ,Stop
- External communication: RS-232C connection
- I/O board for RX2- S is EZJ127A and I/O board for RX2-B is EZJ127B.
In order to add the option (Addition of standard communication and input/output
signal) for RX2-B, it is necessary to change the I/O board from EZJ127B to EZJ127A.
Regarding the replacement procedure to add the option, refer to the following
procedure.
[Connection to the external connection terminal block (TB1) ]
Pin
No.
Name of signal Input / Output
Remarks
NPN Interface PNP Interface NPN PNP
1 Power supply for Print target detector Output
- DC24V,100mA max. (*1)
- Power supply can be selected by SW1
2 Print target detector Input
3
Ground for Print target detector
－
4 Print stop Input
- NPN / PNP can be selected by SW2
- RX2-S: Standard, RX2-B: Option
5 Signal ground -
6 Power supply for encoder Output
- DC24V,100mA max. (*1)
- Totem pole / Open collector (NPN) can be
selected by SW1
- Power supply can be selected by SW1
7 Encoder signal (Totem pole) Input
8 Encoder signal (Open collector NPN) Input
9 Ground for Encoder -
10 Ready - Output -
- Open collector (NPN) only.
11 Signal ground - - -
12 Fault - Output -
13 Warning - Output -
14 Deflection voltage ON/OFF signal Input
● NPN / PNP can be selected by SW2
● RX2-S: Standard, RX2-B: Option
15 Reciprocative print signal Input
16 Run signal Input
17 Reset signal Input-
18 Stop signal Input-
19 Print-in-progress / Print-complete Output
- Print-in-progress/ Print-complete can be
selected with screen operation.
- NPN / PNP can be selected by SW2
- RX2-S: Standard, RX2-B: Option
20 Online output Output
21 Universal output 1 Output
22 Universal output 2 Output
23 Signal ground -
(Note 1): Available supply current for print target detector and encoder is up to 100mA in total.
With respect to the wiring,
refer to Technical manual
“4 Connection of signals”.
- Faulty wiring causes the substrate breakdown. Before wiring, be sure to confirm the
terminal signal.
- Before wiring, be sure to turn off the power.
！
Caution when wiring for external