0197787-01_UM_HeadVerification_708_EN - 第70页

SIPLACE Head V erification User Manual Edition 01/2015 70 Figure 48 : ZDS sen sor values_2 r esults Legend: 1. Segment m easured 2. Analog voltage value f or the Z -down light barri er receiver Sensor value [m V] at a se…

SIPLACE Head Verification

User Manual Edition 01/2015

6. The Z axis is in the bottom position, so that the nozzle tip stands in the component sensor

beam.

7. During the rotation, measurements are taken at each rotated 1°:

- Voltage value for Z-down light barrier (sensor value [mV] / 1°)  Min value [mV]

and Max value [mV]

- Change in nozzle length in component sensor (change in length determined / 5°

 Radial runout 5° [µm])

- Change in voltage for Z-down light barrier (sensor value [mV]/5°  Variation 5°

[mV]

- These saved values are used to determine the maximum voltage fluctuations of

the Z-down light barrier during a 360° rotation. This is provided by the delta

between the maximum voltage value and the minimum voltage value for the Z-

down light barrier  Variation 360° [mV]

- The saved values can also be used to determine the maximum change in nozzle

length for the component sensor measurement during a 360° rotation. This is

provided by the delta between the maximum nozzle length and the minimum

nozzle length in the component sensor across 360°  Radial runout 360° [µm]

8. This measurement is now performed for all other segments.

4.13.2 Explanation of Measurement Results in "Progress" Menu

After completion of the measurement, the following results appear in the "Progress" menu:

Figure 47: ZDS sensor values_1 results

SIPLACE Head Verification

User Manual Edition 01/2015

Figure 48: ZDS sensor values_2 results

Legend:

1. Segment measured

2. Analog voltage value for the Z-down light barrier receiver Sensor value [mV] at a segment

setting of 0°, during the LED brightness adjustment as receiver (4) with the value LED gain.

This voltage value shows the distance between the light barrier and the switching ring at a DP

setting of 0°. A type of light-dark determination (adjustment) is performed. This value must be

within a plausible tolerance (in our example 2000..5000mV)!

3. Lowest analog voltage value determined Min value [mV] for the Z-down light barrier during a

complete rotation of the segment by 360°. This value illustrates the largest distance between

the Z-down light barrier and the switching ring. You can also say that the light of the light

barrier is darker when the distance is greater. This value must be within a plausible tolerance

(in our example 2000..5000mV)!

Highest analog voltage value determined Max value [mV] for the Z-down light barrier during a

complete rotation of the segment by 360°. This value illustrates the smallest distance between

the Z-down light barrier and the switching ring. You can also say that light of the light barrier is

brighter when the distance is smaller. This value must be within a plausible tolerance (in our

example 2000..5000mV)!

4. Brightness value for Z-down light barrier LED (transmitter) during referencing. The LED gain

reflects the brightness of the LED which must be shown in the result of the Z-down light barrier

measurement Sensor value [mV] (2). The LED gain value must be within a plausible

tolerance (in our example 90..200).

5. The Spring resp. low [V/m] value describes the analog voltage value for the Z-down light

barrier, when the Z axis moves towards the conveyor edge, at a DP angle of 0°, and the light

barrier is switched by the switching ring. This value also stands for the distance between the

Z-down light barrier and the switching ring at this point, when the spring force is applied to the

switching ring. This value must be within a plausible tolerance (in our example -5300..-

2000V/m)!

6. The Spring resp. high [V/m] value describes the analog voltage value for the Z-down light

barrier, when the Z axis moves towards the conveyor edge with full force, at a DP angle of 0°,

and the segment spring is fully compressed. This value stands for a distance between the Z-

down light barrier and the switching ring at this position, when maximum force is applied to the

segment by the Z axis. This distance between the Z-down light barrier and the switching ring

is determined here.This value must be within a plausible tolerance (in our example -5600..-

3600V/m)!

7. The Radial runout 5° [µm] value describes the highest change in nozzle length determined

during segment rotation across 360° in a 5° area. The Radial runout 5° [µm] value specified

is the largest change in nozzle length which can be identified within a rotation of 5°. This value

must be within a plausible tolerance (in our example 0..20µm)!

SIPLACE Head Verification

User Manual Edition 01/2015

8. The Radial runout 360° [µm] value describes the complete change in nozzle length

determined during segment rotation across 360°. This value is calculated by finding the

difference between the smallest (shortest measurement) nozzle length and the largest

(longest measurement) nozzle length found during rotation across the entire 360°. This value

must be within a plausible tolerance (in our example 0..100µm)!

9. Results display (OK  green tick / NOK  red X)

10. The Variation 5° [µm] value is the highest increase in voltage for the Z-down light barrier

during rotation of the segment in an area of 5°, while rotating around the full 360°

11. The Variation 360° [µm] value is the voltage difference for the Z-down light barrier by rotation

of the segment around the full 360°. This difference is calculated by finding the greatest

analog voltage value Max value [mV] for the Z-down light barrier and the smallest analog

voltage value Min value [mV] during a complete rotation of the DP around the full 360°.

12. This diagram illustrates the Sensor value [mV] (2) / Min value [mV] (3) / Max value [mV] (3)

values for the segments.

Blue line  Sensor value [mV]

Light green line  Min value [mV]

Dark green line  Max value [mV]

Red border  Min and max tolerances (in our case 2000..5000mV)

Use the button to zoom in on the diagram.

13. This diagram illustrates the Radial runout 5° [µm] (7) / Radial runout 360° [µm] (8) values

for the segments.

Blue line  Radial runout 360° [µm]

Green line  Radial runout 5° [µm]

Blue border  Tolerances for "Radial runout 360° min and max" (in our case 0…100µm)

Green border  Tolerances for "Radial runout 5° min and max" (in our case 0…20µm)

Use the button to zoom in on the diagram.

14. This diagram shows the Spring response low [V/m] (5) value.

Blue line  Spring response low [V/m]

Red border  Tolerances for "Spring response low [V/m]" (in our case -2000..-5300V/m)

Use the button to zoom in on the diagram.

15. This diagram shows the LED gain value.

Blue line  LED gain

Red border  Tolerances for "LED gain" (in our case 90..200)

16. This diagram shows the Sensor Value [mV] values as a curve for each segment during the

360° rotation.

Blue lines  Each segment has its own curve, illustrating the path of the analog voltage

values for the Z-down light barrier during the 360° rotation. The analog voltage value is an

indication for the distance between the switching ring and the light barrier at each position

during the rotation. Due to the light-dark recognition, contaminants (dust) can be detected on

the black surface of the switching ring.