GS 754B C4-98-S12 FORK PHOTOELECTRIC SENSOR

LEUZE Fork Photoelectric Sensor GS 754B/D24-98-S12

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Mouth width: 98 mm.

Analog output: Analog output, Current.

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Description

Fork Photoelectric Sensor GS 754B/D24-98-S12

An infrared light band illuminates a CCD line using the sensors. Hence, one may gauge a passing object by the amount of light it blocks.

 

Very fine yarns and wires can be accurately measured thanks to the excellent repeatability and resolution of 14 m.

 

The diversity of measuring functions that can be used makes it possible to do a lot of different things,
such as identifying the thinnest or thickest wire and locating transparent edges.

 

The devices’ vacuum resistance makes it possible to employ them in the manufacturing of carbon fiber.

 

Fork Photoelectric Sensor GS 754B/D24-98-S12

General information

The central part of the unit is an optical sensor that generates a horizontal band of light .

The band of light illuminates a CCD line array camera. This CCD array produces an output signal that depends on the number of illuminated pixels.

The system has a permanent calibration and guarantees maximum precision and stability at all times.

Every sensor features two interfaces.

Fork Photoelectric Sensor GS 754B/D24-98-S12

TECHNICAL DATA:-

Optical data:-

GS 754B
Output modes 1 … 5 Output mode 7 (default)
Measurement range 25mm 25mm
Mouth width 27mm/98mm 27mm/98mm
Mouth depth 42mm 42mm
Resolution £ 0.1mm over the entire measurement range ³ 0.014mm per measurement level
Smallest object ³ 0.5mm ³ 0.5mm
Light source infrared LED infrared LED
Wavelength 850nm 850nm

 LED indicators:-

LED Meaning
green, continuous light Ready
green, flashing Interference

 

 Diameter determination:-

Depending on which interface is used, data for up to three objects can be output. Data for more than one object can only be transmitted via the serial interface.

The analog value is always based on the edge or diameter information.

 

GS 754B/C4-98-S12Fork photoelectric sensor

“Diameter determination application example”

ASCII representation via RS 232 (P and M12 interfaces:-

GS 754B/C4-98-S12 Fork photoelectric sensor

Parameter   ASCII output data via S1 and S2
Q,q Single-object detection Middle pos. : xxx Diameter: xxx
W,w Detection of two objects Middle pos. : xxx Diameter: xxx Middle pos. : xxx Diameter: xxx
E,e Detection of three objects Middle pos. : xxx Diameter: xxx Middle pos. : xxx Diameter: xxx Middle pos. : xxx Diameter: xxx

ASCII representation, output modes 1 … 5.

Edge measurement and height verification:-

With this measurement, the sensor expects only one edge within the measurement field.

If more or fewer edges are detected by the system, depending on the configuration , this leads to an error message.

GS 754B/C4-98-S12 Fork photoelectric sensor

GS 754B/C4-98-S12 Fork photoelectric sensor

Various configurations are possible with this measurement . The following only applies to devices with an analog interface:-

  1. Linear edge measurement over the entire measuring range (s. point 8).
  2. Teach-in edge measurement with 5V-output at teaching point.

Width measurement:-

To measure the width of strip material, two GS 754B CCD forked photoelectric sensors can be used mutually opposed from one another.

GS 754B/C4-98-S12 Fork photoelectric sensor

Each forked photoelectric sensor relays an edge position which can be extrapolated to the total width when the distance of the sensors vis-à-vis one another is known in the control.

In conjunction with this, time synchronization of the measurement data is ensured via PIN 2 as a trigger input.

If the control generates a LOW -> HIGH signal change at the trigger inputs, then both forked photoelectric sensors simultaneously each start an output cycle.