Vista Rail System Module.pdf - 第14页
5$,/ 6< 67(0 02' 8/( $'-8670 (176$1 '6( 77,1 *6 12.14 Technical Reference Manual Chapter Issue 1 Sep 02 Front Rail Paral lelism W ARNING BOARD CLAMPS. EXTREME CAR E MUST BE EXERCISED WHEN WO RKING I…
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Chapter Issue 1 Sep 02 Technical Reference Manual 12.13
Board at Left/Right
Optos
When fitted to the machine rails the diffuse sensors switching threshold can be
adjusted by means of a sensitivity control switch. This ensures that when a
board is fed into the machine (via the transport belts) the sensor output switches
to ON.
To achieve an optimum setting carry out the following procedure:
1. Place a board on the rails covering the sensor.
2. Turn the sensitivity control fully anti-clockwise, ensure that the green LED is
extinguished.
3. Re-adjust the sensitivity control clockwise until the green LED illuminates.
4. Remove the board from the rails and confirm that the green LED extin-
guishes and the red LED illuminates.
5. Position the board back onto the rail system, (so that the board lies on top
of the rail system as shown in the figure below). Confirm that the red and
green LED’s are extinguished. (If the green LED illuminates, turn the
sensitivity control anti-clockwise until the green LED extinguishes.)
6. Remove the board. Position the board back on the rail system, as in Step 1,
and confirm that the green LED illuminates. Carry out Step 4.
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12.14 Technical Reference Manual Chapter Issue 1 Sep 02
Front Rail Parallelism
WARNING
BOARD CLAMPS. EXTREME CARE MUST BE EXERCISED WHEN WORKING IN
THE TOOLING AREA OF THE MACHINE TO AVOID INJURY. THE FOILS ON THE
FRONT AND REAR BOARD CLAMPS ARE VERY SHARP.
NOTE
Ensure Camera X Axis Parallelism (Camera and Vision Systems Module
Chapter refers) has been carried out prior to commencing this procedure.
1. In Camera Diagnostics, home the Camera X and Y axes. Select Drive to
Board Stop Position the camera carriage is driven to the rear of the front
rail.
2. Raise the front printhead cover.
3. Power down the machine.
4. Carry out either of the following:
a. Remove the camera (refer to Camera and Vision Systems Module Chap-
ter, Camera and Optical Unit Assembly Removal).
b. If available fit a spare camera assembly bearing to the right hand end of
the camera rail.
5. Fit a Dial Test Indicator (D.T.I.) to the camera carriage bearing.
6. Using the D.T.I. check the front rail parallelism to camera carriage rail over
the length of the ’O’ ring support plate to ±0.2mm.
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Chapter Issue 1 Sep 02 Technical Reference Manual 12.15
7. If adjustment is necessary, carry out the following:
a. Slacken the four rail securing bolts (two each side) adjust the front rail as
required. Tighten the bolts, re-check the parallelism.
b. When the adjustment is complete, loosen each bolt disturbed (one at a
time), apply suitable locking compound down the thread only (allow plate
to spring up to gain access) and fully tighten. Remove the D.T.I.
8. Carry out either of the following:
a. Refit the camera (see Camera and Vision Systems Module Chapter,
Camera Refitment).
b. Remove the spare camera bearing from camera rail.
9. Switch on the machine and initialize, carry out the Home Position Rail Width
Check and Camera Reference Position (see Rail System Module Chapter
and Camera and Vision Systems Module Chapter).
Rear Rail Parallelism
WARNING
BOARD CLAMPS. EXTREME CARE MUST BE EXERCISED WHEN WORKING IN
THE TOOLING AREA OF THE MACHINE TO AVOID INJURY. THE FOILS ON THE
FRONT AND REAR BOARD CLAMPS ARE VERY SHARP.
NOTE
Ensure Camera X Axis and Front Rail Parallelism (see Camera and Vision
Systems Module Chapter and Rail System Module Chapter) has been carried
out prior to commencing this procedure.
1. In Rail System Diagnostics, select Adjust and alter board width to 250mm.
2. Select Drive Rail to Board Width. The rails are driven to the board width
selected.