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06/2002 E dition Studen t Guide H S-50 Advance d I 8 Gant ry 10 8.4 Calibration o f the Anti - C ras h Board 8.4.1 T est Equipm ent – Di gital m ult ime ter – SIT EST s o f t ware – Anti - crash board for HS -50 8.4. 2 T…

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Student Guide HS-50 Advanced I 06/2002 Edition
8 Gantry
9
8
Fig. 8.3 - 5 Switch points
Key
(1) Switch point end position, gantry 4 / 2
(2) Switch point reference, gantry 4 / 2
(3) Switch point reference, gantry 1 /3
(4) Switch point end position, gantry 1 / 3
Proximity switch X7 Proximity switch X8
gantry 1 top bottom
gantry 2 bottom top
gantry 3 top bottom
gantry 4 bottom top
distance sensor X9 only with gantry 1 and 3
Switch points: Reference / end position
1 switch point: end position gantry 2 , 4
2 switch point: reference gantry 2, 4
3 switch point: reference gantry 1, 3
4 switch point: end position gantry 1, 3
06/2002 Edition Student Guide HS-50 Advanced I
8 Gantry
10
8.4 Calibration of the Anti - Crash Board
8.4.1 Test Equipment
– Digital multimeter
– SITEST software
– Anti - crash board for HS-50
8.4.2 Test Setup
8
fig 8.4 - 1 Test setup for the anti - crash board
KEY:
TP2 = Signal
R82, R92 = Potentiometer 8
TP1 = Signal 8
X
I
, Y
I
= "Error" message for the axes of the left gantry in each work area. 8
X
II
, Y
II
= "Error" message for the axes of the right gantry in each work area.
(Viewpoint from input conveyor).
DIS = Message: Distance sensor activated. 8
NOTE
Adjustments are identical for both gantry groups. 8
Student Guide HS-50 Advanced I 06/2002 Edition
8 Gantry
11
CAUTION
Perform these adjustments only after you pressed the EMERGENCY STOP button! 8
8.4.3 Adjustment of Distance Sensor Sensitivity
➠ Connect the digital multimeter of the anti - crash board to pin TP 0 (0V) and pin TP 1 (signal).
➠ Move both gantries together.
➠ Use the adjusting screw to set the voltage at the distance sensor to 6V - +/- 0,1 V.
➠ Move the two gantries together until a distance of 100 mm is reached.
(Elastomer spring up to opposite plane).
– The voltage must reach a value of approx. 2V.
8.4.4 Calibration of the Anti - Crash Board
➠
Connect the digital multimeter to the anti - crash board at pin TP2 (signal) and pin TP0 (0V).
➠ Move both gantries together.
➠ Use the potentiometer R82 to adjust the voltage to 0V- +/- 0.05 V.
➠ Move the two gantries together until a distance of 100 mm is reached.
➠ Use the potentiometer R92 to adjust the voltage to 10V- +/- 0.05 V.
➠ Check the 0V- setting one more time.
➠ Repeat the calibration if the reached value is incorrect.
8.4.5 Function Control of the Distance Sensor
8.4.5.1 Preparation
➠ Perform a reference run.
8.4.5.2 Testing Placement Areas I and II
➠ In placement area I, attach a piece of paper in the middle of the machine, at the height of the
distance sensor.
SITEST: 8
➠ Select "Gantry" ==> "Select gantry" ==>
"Axis functions" ==> "Select y-axis" ==> "Position the axis" ==> "Edit values and
accept for target position = 1 300,000 dgts".