HS50的结构及原理.pdf - 第102页
6 Gantries Adjustment Instructions S IPLACE HS-50 6.1 Track Signals E dition 05/00 102 0 HDVXULQJ 6HTXHQF H Å T urn the main switch to "ON". Å Conn ect the trac k si gnal test er to t he incremen tal …
Adjustment Instructions SIPLACE HS-50 6 Gantries
Edition 05/00 6.1 Track Signals
101
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Å Turn on the machine.
Å Relate your measurement setup to the x-, or y- axis respectively. (See fig 6.5 - 3).
Å Adjust the oscilloscope.
Å Set the track signal tester to the "Oscilloscope cal" position.
Å With the help of the positioning switches CH1 and CH2, move the light spot exactly to the
center of the crosshairs of the screen.
Å Set the track signal tester to the "signal output" position.
Å Manually, move the appropriate axis (x = head / y = gantry) back and forth.
– If you adjusted the read head correctly, the following illustration will appear on the screen of
the oscilloscope:
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NOTE
The pulse width of the analog zero pulse is dependent on the speed at which the axis is
traversed.
Spur A / track A
Spur B / track B
6 Gantries Adjustment Instructions SIPLACE HS-50
6.1 Track Signals Edition 05/00
102
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Å Turn the main switch to "ON".
Å Connect the track signal tester to the incremental encoder 1 of the x- / y- axis.
(See
fig 6.1 - 1).
NOTE
The testing sequences of the x- and y- axes are identical.
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Å Connect the oscilloscope to the track signal tester.
Å Set the oscilloscope to the values of the table below.
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Å Set the track signal tester to selector switch "Oscilloscope cal.".
Å With the help of the positioning switch of CH 1, set the direct current signal on the center of the
upper half of the screen.
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Å Set the oscilloscope to the value of the table below:
Å Set the track signal tester to position "Signal output".
Å Manually, move the appropriate axis (x = head / y = gantry) back and forth.
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CH 1
"Oscilloscope
cal."
zero pulse DC 0.5 V/ DIV auto 20 ms
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CH 1
signal output zero pulse DC 0.5 V/ DIV
2.5V norm
pre- trig. 50%
20 ms
Adjustment Instructions SIPLACE HS-50 6 Gantries
Edition 05/00 6.1 Track Signals
103
NOTE
If you adjusted the read head correctly, the following illustration will appear on the screen of the
oscilloscope:
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(1) No spurious peaks are allowed in this measuring range.
NOTE
Check the analog signal of the zero pulse, to ascertain that the zero pulse is discerned correctly.
If the zero pulse is not discerned correctly, the axis will reference to a spurious peak.
Placement offsets will be the result.
The pulse width of the analog zero pulse is dependent on the speed at which the axis is
traversed.
CH1