JUKI FX-3R MAINTENANCE GUIDE.pdf - 第106页

FX-3R Maintenance Guide 9-1 DANGER To prevent any trouble caused by accidental machine start, always shut-down the power before starting the maintenance and adjustment work. [9] PNEUMA TIC UNITS 9-1. Replacing the Digita…

FX-3R Maintenance Guide

8-23

8-4-2. Replacing the Outer Bank PCB and Connector Cable

The bank PCB and connector cable are replaced in the same manner as described for the

replacement table for ETF. To do so, see the sections below.

1) Replacing the bank PCB → 8-3-3

2) Replacing the connector cable → 8-3-4

8-4-3. Replacing the Connector for Off-line Setup

1) Disconnect the connector for the off-line setup from the E trolley cover R.

2) Disconnect the connector connecting the cable of the connector for the off-line setup and the

relay cable to the electric bank PCB (right side surface of FDC bracket). After that, replace the

connector for the off-line setup.

3) Reassemble the components in the reverse order of disassembly.

4009

Rev. 1.00

40084837

EF setup cable 2 assembly

Connect the connector on the side

surface of the FDC bracket.

5351

e stay

40084841

EF setup cable 1 bracket assembly

∗ Adjust the length of the dotted portion to 650 mm.

Tape guid

8-4-4. Replacing the ETF Incorrect Insertion Detection Sensor

For details, see section 8-3-6, Replacing the ETF Incorrect Insertion Detection Sensor

(Replacement Table for Electric Feeder).

FX-3R Maintenance Guide

9-1

DANGER

To prevent any trouble caused by accidental machine start, always

shut-down the power before starting the maintenance and

adjustment work.

[9] PNEUMATIC UNITS

9-1. Replacing the Digital Pressure Switch (Positive Pressure)

1) Close the hand valve at the lower left portion

of the main unit.

2) Remove the screws (2 locations) to open the

cover SB_A (open/close cover).

3) Disconnect the φ6 air tube and connector

from the digital pressure switch.

4) Detach the digital pressure switch with the

fixing resin on the back of the bank pressure

bracket C kept pushed.

Cover SB_A

5) Reassemble the components in

the reverse order of disassembly.

Figure 9-1-1 Cover SB_A (Front Side)

40045958

DIGITAL PRESSURE SW

Resin fixing part

Bank switch bracket C

Figure 9-1-2 Digital Pressure Switch

9-1-1. Adjusting the Digital Pressure Switch (Positive Pressure)

After the digital pressure switch has been replaced, make the setting as shown below.

Threshold value of pressure switch: 0.400MPa

Hysteresis: 0.050MPa

Display color mode: Green when the pressure switch is turned ON.

Operation mode: Hysteresis mode

Pressure switch output form: Normally open

(Turned ON when the value is the threshold value or more.)

Response time: 2.5ms or less

Auto preset setting: Manual setting

Follow the steps to make the setting.

Rev. 1.00

FX-3R Maintenance Guide

9-2

[U] button

[V] button

[LED] panel

[SET] button

Figure 9-1-1-1 Digital Pressure Switch

1) Setting the display mode and hysteresis mode

c Keep the

button pressed for 2 sec. or longer. The display will become . (The

operation enters the display color setting mode.)

d Press the

or button to display . After that, press the button.

(When the switch is turned ON, this is displayed in green.)

e Press the

or button to display . After that, press the button. (The

operation enters the hysteresis setting mode.)

f Press the

or button to display . After that, press the button. (The

normally open operation is set.)

g Press the

or button to display . After that, press the button. (The

response time is set at 2.5 ms or less.)

h Press the

or button to display . After that, press the button. (The

manual set mode is set.)

i The numeric value is displayed in this step, and then the operation is returned to the

measurement mode.

2) Setting a detection level (threshold value and hysteresis)

c In the measurement mode, press the

button. and current threshold value are

displayed alternately.

d Press the

or button. The numeric value at the least significant digit starts flashing.

Subsequently, press the

or button to increase or decrease the numeric value.

e When pressing the

button, the flashing digit moves left.

f Perform operation steps d and e to display

. Keep the button pressed for 2

sec. or longer. (The threshold value is then set to “0.400 MPa”.)

and current set value are displayed alternately. Press the button.

and current hysteresis value are displayed alternately.

i Press the

or button. The numeric value at the least significant digit starts flashing.

Subsequently, press the

or button to increase or decrease the numeric value.

j When pressing the

button, the flashing digit moves left.

k Perform operation steps h and j to display

. Keep the button pressed for 2

sec. or longer. (The hysteresis value is then set to “0.050 MPa”.)

l The operation is then returned to the measurement mode. The settings are then completed.

Rev. 1.00