SG_FSE_SiplaceHF_HF3_00193901-05_eng.pdf - 第188页
1 - 22 S tudent Guide SIPLACE HF/HF3 5 Gantry Edition 09/2005 22 Fig. 5.4 - 7 Analog track signals 90° phase shift 5.4.2.2 Digit al T rack signals T o check the track signals u se the same test setup which is descriped u…
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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.
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Student Guide SIPLACE HF/HF3
5 Gantry Edition 09/2005
22
Fig. 5.4 - 7 Analog track signals 90° phase shift
5.4.2.2 Digital Track signals
To check the track signals use the same test setup which is descriped under point 5.4.1.2 .
The measurement procedure is the same as descriped under point 5.4.2.1 .
Fig. 5.4 - 8 Digitale track signals 90° phase shift
Spur A / track A
Spur B / track B
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Student Guide SIPLACE HF/HF3
Edition 09/2005 5 Gantry
23
5.5 Axis control
5.5.1 Parts for the axis control
The control loop for control the X- and Y-axis in general consist of the following parts:
– Axis board with VC 3 Controller
– Servo board (TDS)
– 3 Phase AC linear motor
– Measurement system (Incremental scale and encoder)
All linear motors have temperature sensor to protect it against high temperature.
Fig. 5.5 - 1 Parts "Axis control"
Axis board A363 with VC 3 Controller (VC = Velocity Commutation)
Control signals I
soll "W" and I soll "U"
Servo board control directly the linear motor, Intermediate (DC) voltage cir-
cuit is 250V.
LED‘s on Servo board:
– Power supply ON
– Servo enable, it the enable signal from the axis board.
–Display I
RMS limit shorter than 2,5 s.
– Error: Over voltage, -current, -temperature longer than 2,5 sec.
3 Phase AC linear motor X-and Y-axis with integreted temperatur sensor.
Between motor and incremental encoder exist a fixed mechanically connec-
tion.
Incremental encoder: Transmitted the correct position to the axis board and
is the only feedback signal to control the motor (Track signals).