00900194-01_SM_ASM ProcessLens_Dual-lane_EN.pdf - 第31页
3 Replacing spare parts 3.3 Encoder Service Manual ASM ProcessLens Dual-lane 09/2018 31 3.3.4 Checking the alignment of the x, y and z encoder reader Furthermore the alignment of the x, y and z readers need to be checked…
3 Replacing spare parts
3.3 Encoder
30 Service Manual ASM ProcessLens Dual-lane 09/2018
3.3.3 Checking the alignment of the encoder reader of the Y gantry
Whenever the encoder readers have been removed, the readers need to be realigned.
Equipment and tools
●
Flexures
Requirements
●
Machine is switched on.
●
Optical head is centered on the X position.
Checking the alignment
Position of the flexures and the optical head
1. Optical head
2. Flexures
► Install the flexures(2) at the gantry.
NOTICE!
Flexures
Without the flexures the gantry can be moved in
slightly different positions. The flexures help to
hold the gantry in the same position so that both
sides are align to each other.
.
► Start the Process "Gantry Index ParallelTool".
► Click on the Init button to initialize the gantry.
► Press the Start Gantry encoder TEST button.
► Slowly push the gantry backwards.
NOTICE!
Test results
This needs to be done within 5 seconds after the
button has been pushed. Otherwise the measur-
ing will not take place.
.
► Press the "Stop the Gantry Encoder" button.
► Repeat this at least 10 x times.
► The specified range is +/- 1000.
► If any of the 10 X results differ from the specified
range go back to adjust the brackets and repeat
the check.
CAUTION
Installed flexures
Installed flexures cause damage to the machine when in operation mode.
Remove flexures at the end of the alignment test.
3 Replacing spare parts
3.3 Encoder
Service Manual ASM ProcessLens Dual-lane 09/2018 31
3.3.4 Checking the alignment of the x, y and z encoder reader
Furthermore the alignment of the x, y and z readers need to be checked whenever the readers or
the scale bar has been changed.
Requirements
●
Machine is switched on.
Checking the alignment
► Go to the Diagnostic page.
► Click on the Unit function(1) tab.
► Go to the Gantry section(2).
► Select the X button(3) and click on Home(4).
► Select the Y button(3) and click on Home(4).
► Select the Z button(3) and click on Home(4).
3 Replacing spare parts
3.4 Scale bars
32 Service Manual ASM ProcessLens Dual-lane 09/2018
3.4 Scale bars
3.4.1 Replacing the Y scale bars
Parts
Fig.4: Y scale bar, 2 Scale
03139293-xx Y scale assembly
03139296-xx X scale assembly
Equipment and tools
●
Allen key size 2.5
●
Spacer 2.1mm
●
Piece of paper
Requirements
●
Machine is switched off.
Removal
► Unscrew and remove the seven screws(1) off
the scale bar using a T shaped Allen key size
2.5.
► Carefully pull out the scale bar.
► Do not damage the encoder reader. The sensit-
ive reader may be protected by using a piece of
paper.
► Put in the new scale bar.
CAUTION!
The surface of the scale bars
Fingerprints or scratches damage the scale bars
which then need to be exchanged.
Do not touch or scratch the surface of the scale
bars.
Be careful when pulling out the reader and when
putting it back again.
.