192277 - Micron Technical Reference Volume 3.pdf - 第67页
CAMERA SYSTE M MODULE REPLACEMENT PROCEDURES Chapter Issue 9, Feb 18 Technical Reference Manual 23.25 16. Using a suitable cable tie, enga ge a forcemeter across the motor pulle y . Apply a horizontal force of 24kg to th…
CAMERA SYSTEM MODULE
REPLACEMENT PROCEDURES
23.24 Technical Reference Manual Chapter Issue 9, Feb 18
10. Slacken the four timing belt clamp securing screws sufficiently to remove the
timing belt from the clamp.
NOTE
Take note of the routing of the timing belt before removing it.
11. Remove the timing belt and discard.
12. Route the replacement timing belt around the camera Y motor pulley and
the idle pulley.
13. Engage the two ends of the replacement timing belt equally into the timing
belt clamp. Tighten the timing belt clamp screws sufficiently to allow belt
movement. Ensure the timing belt is straight between the two pulleys and
the timing belt clamp.
14. Fully tighten the clamp screws.
15. Manually position the timing belt clamp on the camera Y axis timing belt so
that the distance X1 is equal to the distance X2.
Camera Y Motor
View From Beneath Camera Carriage Right Side of Machine
Securing Screws
(in 4 positions)
Camera X Motor
Camera Y Axis Timing Belt
Timing Belt Clamp Camera Y Motor PulleyIdle Pulley
View on Right Side of Machine
X1
X2
CAMERA SYSTEM MODULE
REPLACEMENT PROCEDURES
Chapter Issue 9, Feb 18 Technical Reference Manual 23.25
16. Using a suitable cable tie, engage a forcemeter across the motor pulley.
Apply a horizontal force of 24kg to the belt. Maintaining this force, tighten
the two securing screws.
17. Remove the forcemeter. Do not remove the cable tie as further adjustment
may be necessary.
18. Ensure that the belt clamp is midway between the two pulleys.
19. Using a tension meter (Part No. 190279), check the timing belt tension either
side of the cable clamp is between 42Hz and 48Hz. Check the two readings
are within 1Hz of each other.
NOTE
Adjust the position (between the two pulleys) of the belt clamp to achieve
the 1Hz deviation.
20. If adjustment is not required, go to Step 25.
21. If adjustment is required, slacken the two securing screws as detailed in
Step 9.
22. Adjust the timing belt tension using the cable tie.
23. Tighten the locknut.
24. Repeat Steps 19 to 23 until the correct tension is achieved.
Forcemeter
Cable Tie
View on Right Hand Side of Machine
Motor Pulley
24.0 kg
Timing Belt ClampTiming Belt
Tension Meter
Position A (mid span) Position B (mid span)
CAMERA SYSTEM MODULE
REPLACEMENT PROCEDURES
23.26 Technical Reference Manual Chapter Issue 9, Feb 18
25. Remove the timing belt clamp securing screws one at a time, apply a
suitable locking compound and fully tighten.
26. Remove the cable tie.
27. Refit the panels removed in Step 8.
28. Power up the machine.
29. Select Maintenance.
30. Select Diagnostics.
31. Use Next or Previous to highlight Camera Axes.
32. Select Select Module.
33. Use Next or Previous to highlight Home Camera X Axis.
34. Select Run Diagnost.
35. Use Next or Previous to highlight Home Camera Y Axis.
36. Select Run Diagnost.
37. Carry out the following checks:
a. Camera Reference Position.
b. Calibrate Vision.
Replacing the Encoder and Encoder Strip (Linear Servo Motor Systems Only)
If the encoder or encoder strip needs to be replaced, there is a special tool kit
available which is used to maintain the correct alignment. The tool kit uses a
scale applicator, this temporarily replaces the encoder for laying the encoder
strip.
The encoder set up involves setting the height and yaw correctly so that the
encoder travels at the focused distance for reliable reading.
The tool kit is available from ASM Customer Support Group, contact the help
desk for details.