Hitachi UX Twin Nozzle Service Manual page 102

[Setting of switch/check point/LED display etc.]
- Setting of switch
[SW1]
ON
1
SW1
Bit1 Setting is performed according to the specification of the encoder.
Bit2 (Refer to the setting by types of the specification described below.)
Setting is performed according to the specification of the print target detector.
Bit3
Bit4 Setting is performed according to the specification of the encoder.
Setting is performed according to the specification of Print target
Bit5
detector.
Bit6 (Refer to the setting by types of the specification described below.)
Bit7 Reserved (set to OFF)
Print target detector signal noise filter setting
Bit8
( Time constant: t = 2.2 milliseconds)
< rint target sensor >
P
- When the power is supplied from the IJ printer :
Set as shown in the following table depending on the output form of the print
target sensor.
Output form
Open collector（NPN）
Open collector（PNP）
- When the external dedicated power supply is used:
Set as shown in the following table regardless of the output form of the
print target sensor.
Output form
Open collector（NPN）
Open collector（PNP）
< otary encoder >
R
- When the power is supplied from the IJ printer :
Set as shown in the following table depending on the output form of the rotary
encoder.
Output form
Totem pole
Open collector
- When the external dedicated power supply is used:
Irrespective of the output form of the rotary encoder, Set as the
following table depending on the power supply voltage.
Power supply voltage
DC 12V
DC 24V
[SW2] EZJ127A board only
Set the input signal connection of NPN/PNP.
*) Input signal: Print stop, Reciprocative printing, Deflection voltage ON/OFF,
Run, Reset, Stop
Mark
SW2
Both bits are put downward.
Mark
SW2
Set only the right bit upward.
2 3 4 5 6 7
Set content
SW1–3
ON
OFF
SW1 –3
ON
OFF
SW1 - 1
OFF
ON
SW1 - 1
OFF
OFF
Input / Output NPN
Input NPN / Output PNP
3-26
ON
8
OFF
SW1 – 5 SW1 – 6
ON
ON
SW1 – 5 SW1 – 6
OFF
OFF
SW1 – 2
SW1 - 4
OFF ON
OFF OFF
SW1 - 2 SW1 - 4
ON OFF
OFF OFF
Input / Output PNP
Mark
Both bits are put upward.
Input PNP / Output NPN
Mark
Set only the left bit upward.
Setting of
factory default
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
ON