Hitachi IJ UX, Service Manual, Page: 103 / 308

3-23
- Check point/LED
Reference
number
Name Content
TP6 Floating GND Reference ground of external part (conveyer side) photo
coupler insulation circuit
LED1 Print target detector
input When the Print target detector is ON, it is lighted.
LED2 Printing stop input (PNP) When the printing stop signal input (PNP) is ON, it is
lighted.
LED3 Printing stop input (NPN) When the printing stop signal input (NPN) is ON, it is
lighted.
LED4 Rotary encoder input When the rotary encoder signal input for product speed
matching is ON, it is lighted.
LED5 Deflection voltage
ON/OFF input (PNP) When the deflection voltage ON/OFF signal input (PNP) is
ON, it is lighted.
LED6 Deflection voltage
ON/OFF input (NPN) When the deflection voltage ON/OFF signal input (NPN) s
ON, it is lighted.
LED7 Reciprocative printing
input (PNP) When the reciprocative printing signal input (PNP) is ON, it
is lighted.
LED8 Reciprocative printing
input (NPN) When the reciprocative printing signal input (NPN) is ON, it
is lighted.
LED9 Run input (PNP) When the run signal input (PNP) is ON, it is lighted.
LED10 Run input (NPN) When the run signal input (NPN) is ON, it is lighted.
LED11 Reset input (PNP) When the reset signal input (PNP) is ON, it is lighted.
LED12 Reset input (NPN) When the reset signal input (NPN) is ON, it is lighted.
LED13 Stop input (PNP) When the stop signal input (PNP) is ON, it is lighted.
LED14 Stop input (NPN) When the stop signal input (NPN) is ON, it is lighted.
LED15 Printing output (PNP) When the printing-in-progress/printing-completed signal
output is ON, it is lighted.
LED16 Online output (PNP) When the online output is ON, it is lighted.
LED17 Universal output 1 (PNP) When the universal output 1 is ON, it is lighted.
LED18 Universal output 2 (PNP) When the universal output 1 is ON, it is lighted.
LED20 Printing output (NPN) When the printing-in-progress/printing-completed signal
output is ON, it is lighted.
LED21 Online output (NPN) When the online output is ON, it is lighted.
LED22 Universal output 1
(NPN/PNP) When the universal output 1 is ON, it is lighted.
LED23 Universal output 2
(NPN/PNP) When the universal output 2 is ON, it is lighted.
[Note in case of the EZJ127 board replacement]
- When replacing the board, be sure to turn off the power.
- Before replacing the board, be sure not to supply the electric power to the wires
connecting to TB1.
- Perform the setting of SW1 and 2.
-There are two type of EZJ127 board. (EZJ127A and EZJ127B)
- When replacing the board, first remove the harness from the board by removing
the fixing screws, Then, pulling the board upward and securing enough space to work,
disconnect the harness.