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| Safety Technology - Measuring Light Curtains |
KONTURflex - Measuring Light Curtains with Profibus DP Interface
one of the fastest measuring light curtain is prepared for nearly every application. Wether length-, width-, hight measurement, positioning, hole-detection or multidimensional contour scanning, all these applications are no problem for the KONTURflex by Leuze lumiflex. With the convenient Windows User-Software a quick and easy configuration to the actual measurement task can be made. Light axis distances of 5, 10, 20 and 40 mm and housing length up to 3200 mm are available. The control unit QUATTRO allows the connection of up to 4 pairs of optical profiles, does the precalculation of the measurement datas like maximum/ minimum calculation and transfers the data by a MOD-Bus or Profibus DP Interface to the connected control unit e.g. PLC.
KONTURflex EX, answering to protection class “n”, is now available for applications in zones 2 (gases) and 22 (non-conductive combustible dust).
Advantages
Rapid sampling rate, 50 per light axis
Up to four light curtains of varying lenghts and numbers of beams can be connected to the control device. The maximum number of beams is 512.
The measurement result is independent of the surface and color of the measured object.
With the Windows software, the control device can be adapted to a wide range of tasks and applications.
Transmitting and receiving bars with 5, 10, 20 and 40 mm axis distance and length of up to 3200 mm
various data measurement functions (maximum/ minimum values, path function, recognition of holes, blanking single-beam evaluation)
A choice of Profibus DP or MOD-Bus interface |
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SCAN - Measuring Light Curtains
Optoelectronic measurement technology does not have to be complicated. Consisting of a transmitter and a receiver, SCAN light curtains operate much like a light barrier. Infrared beams projected from the transmitter to the receiver produce a grid-type measurement field. The status of the individual light axes (”light path unobstructed” or ”light path interrupted”) is stored in the receiver. This data is then transmitted via serial interface and an PLC driver program directly into the working memory of the connected PLC control, where it can be further processed depending on the requirements of the application. For performing simple detection tasks, the presence of objects in the measurement field is indicated by means of a pnp output.
Advantages
Measurement field up to 6 m wide, from 900 mm to 3000 mm high
30 mm resolution at every position of the measurement field
Can be connected directly to the PLC control (e.g. Siemens S7-200)
pnp switch output for measurement field status
Simple connection due to M12 connector
Possible to link measurement fields by cascading devices
Contamination and error signal output to the PLC
Compact design (17 mm x 33 mm)
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