Hitachi UX Twin Nozzle Service Manual page 103

- Check point/LED
Reference Name
number
TP6 Floating GND
LED1 Print target detector
input
LED2 Print stop input (PNP)
LED3 Print stop input (NPN)
LED4 Rotary encoder input
LED5 Deflection voltage
ON/OFF input (PNP)
LED6 Deflection voltage
ON/OFF input (NPN)
LED7 Reciprocative print
input (PNP)
LED8 Reciprocative print
input (NPN)
LED9 Run input (PNP)
LED10 Run input (NPN)
LED11 Reset input (PNP)
LED12 Reset input (NPN)
LED13 Stop input (PNP)
LED14 Stop input (NPN)
LED15 Print output (PNP)
LED16 Online output (PNP)
LED17 Universal output 1 (PNP)
LED18 Universal output 2 (PNP)
LED20 Printing output (NPN)
LED21 Online output (NPN)
LED22 Universal output 1
(NPN)
LED23 Universal output 2
(NPN)
[Note for EZJ127 board replacement]
- When replacing the board, be sure to turn the main power switch OFF.
- Be sure NOT to supply the electric power to the wires connected to TB1.
- Perform the setting of SW1 and 2.
-There are two types of EZJ127 board. (EZJ127 A board and EZJ127 B board)
- When you remove the harnesses from the board, remove fixing screws of the board first.
And then remove harnesses with pulling the board from inside of the unit.
Content
Reference ground of external part (conveyer side) photo
coupler insulation circuit
When Print target detector is ON, it is lit.
When Print stop signal input (PNP) is ON, it is lit.
When Print stop signal input (NPN) is ON, it is lit.
When Rotary encoder signal input for product speed
matching is ON, it is lit.
When Deflection voltage ON/OFF signal input (PNP) is
ON, it is lit.
When Deflection voltage ON/OFF signal input (NPN) is
ON, it is lit.
When Reciprocative print signal input (PNP) is ON, it is lit.
When Reciprocative print signal input (NPN) is ON, it is lit.
When Run signal input (PNP) is ON, it is lit.
When Run signal input (NPN) is ON, it is lit.
When Reset signal input (PNP) is ON, it is lit.
When Reset signal input (NPN) is ON, it is lit.
When Stop signal input (PNP) is ON, it is lit.
When Stop signal input (NPN) is ON, it is lit.
When Print-in-progress/Print-completed signal output is
ON, it is lit.
When Online output is ON, it is lit.
When Universal output 1 is ON, it is lit.
When Universal output 2 is ON, it is lit.
When Print-in-progress/Print-completed signal output is
ON, it is lit.
When Online output is ON, it is lighted.
When Universal output 1 is ON, it is lit.
When Universal output 2 is ON, it is lit.
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