00195193-02 SG D4 FSE en (1).pdf - 第164页
Axis dynamic Track signals and Zero pulse Axis control gantry Student Guide SIPLACE D4 (FSE) EN 09/2006 Axis dynamic 151 X Move by hand the gantry over the firs t zero pulse. X The following picture sh ould appear. NOTE:…
Axis dynamic
Axis control gantry Track signals and Zero pulse
Student Guide SIPLACE D4 (FSE)
Axis dynamic EN 09/2006
150
7.4 Axis control gantry
7.4.1 Track signals and Zero pulse
7.4.1.1 Check the zero pulse signal
The zero pulse on the incremental scale must be recognized from the incremental encoder secure and
perfectly. To check the zero pulse you can check the analog or digital zero pulse. If the zero pulse is not
recognized correctly, the axis will reference to a spurious peak. Placement offsets will be the result.
Electrical settings can not be made in the incremental length measurement system.
7.4.1.1.1 Measurement of the analog zero pulse signal
7.4 - 1: Measurement procedure for checking the analog zero pulse and the analog track signals
Test procedure
X Connect the measurement tester to the incremental encoder.
X Main switch
ON
X Connect the oscilloscope to the measurement tester.
X Set up the measurement adapter
Calibrate the oscilloscope
and position the signal at the top,
center of the screen.
Axis dynamic
Track signals and Zero pulse Axis control gantry
Student Guide SIPLACE D4 (FSE)
EN 09/2006 Axis dynamic
151
X Move by hand the gantry over the first zero pulse.
X The following picture should appear.
NOTE:
The first zero pulse is to be checked at a distance of 25 mm after the bumper.
Legend:
1. In the tolerance space of - 0.3 V there is no
interference pulse.
2. The analog zero pulse has to over the
tolerance space more then 0,3V
3. Initial start position
4. analog zero pulse
5. digital zero pulse
Legend:
1. analog track signal A and B
2. analog zero pulse
3. digital zero pulses
Axis dynamic
Axis control gantry Track signals and Zero pulse
Student Guide SIPLACE D4 (FSE)
Axis dynamic EN 09/2006
152
7.4.1.1.2 Measuring the Digital Zero Pulse Signal
7.4 - 2: Measurement procedure for checking the digital zero pulse signal and the digital track signals.
NOTE:
You can also use the BNC socket on the axis test box to check the zero pulse
signal (inverted display of zero pulse signal). The digital signals can be checked
at connectors X11 and X24 of the gantry distributor and gantry head distributor
(for error monitoring purposes). (Y-Axis, calculate extra time for dismounting
the covers)
NOTE:
The digital track signals can be checked with measurement clamps attached to
the test connector!