SG_FSE_SiplaceHF_HF3_00193901-05_eng - 第186页

1 - 20 S tudent Guide SIPLACE HF/HF3 5 Gantry Edition 09/2005 20 X10 on the Gantry Interface Y -axis 5 X24 on the head interface X-axis 5 Please Note: The measurement procedure for m easurment the digit al zero pulse is …

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Student Guide SIPLACE HF/HF3
Edition 09/2005 5 Gantry
19
Fig. 5.4 - 4 Incremental encoder wrong adjusted or poluted zero pulse
Legend
5.4.1.2 Measurement the digital zero pulse signal
Please Note: Also for checking the zero pulse you can use the BNC connector from the axis test
box (inverse signal).
On the connectors X10 and X24 on gantry -and headinterface can you check the digital Signals.
(Y-Axis, more time to dismounting the covers)
Fig. 5.4 - 5 Test setup to check the digital zero pulse and track signals
(1) analog track signal A and B (2) analog zero pulse
(3) digital zero pulses
1
2
3
Test setup for digital zero pulse and track signals
Measurment system X/Y Axis
Track A/B/N
Resolution incremental scale
1 Digit= 1µm
Track signal
tester
BNC-cable
Siplace HF
Board
Test connector
Ribbon cable
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Student Guide SIPLACE HF/HF3
5 Gantry Edition 09/2005
20
X10 on the Gantry Interface Y-axis 5
X24 on the head interface X-axis 5
Please Note:
The measurement procedure for measurment the digital zero pulse is the same as the analog zero
pulse.
Connector:
Pin 1 Ground
Pin 2 Track A
Pin 3 Track A\
A\ mean inverted A
Pin 4 Ground
Pin 5 Track B
Pin 6 Track B\
Pin 7 +5V
Pin 8 Track N
Pin 9 Track N\
Pin 10 Key
Connector:
Pin 1 Ground
Pin 2 Track A
Pin 3 Track A\
Pin 4 Ground
Pin 5 Track B
Pin 6 Track B\
Pin 7 +5V
Pin 8 Track N
Pin 9 Track N\
Pin 10 Key
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Student Guide SIPLACE HF/HF3
Edition 09/2005 5 Gantry
21
5.4.2 Check the track signals
5.4.2.1 Analog track signals
To check the track signals use the same setup which is descriped under point 5.4.1.1 .
➠ Switch the machine "ON"
➠ Switch the track signal tester to "oscilloscope calibrate"
➠ Oscilloscope adjustments "DC, Refr., Non Store, Auto (20 ms)"
➠ Voltages V/Division decrease up to 0,5 V/Div.
➠ Oscilloskope adjust to the position "X / Y" ==> a point appears !
➠ Move the point into the middle of the display
➠ Switch the track signal tester to"Sinus amplifier output"
➠ Move the axis by hand over the whole incremental scale (to check the scale quality).
➠ It should be appears the following picture.
Fig. 5.4 - 6 Analog track signals A and B in X/Y mode
➠ Switch the oscilloscope to the normal mode.
➠ It should be appears the following picture.