Banner AG4 Series User Manual
Also see for AG4 Series: Original instructions
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Banner AG4 Series Safety Laser Scanner1.12.5 Reference Contour (Surface) MonitoringThe reference contour (surface) monitoring function prevents unintentional misalignment and deliberate manipulation ofthe Scanner. If the Protective Field contains a reference contour (surface), the Scanner monitors both the ProtectiveField (for intrusions) and the reference surface (for field position). If the distance between the sensor and the referencesurfaces changes from the original configuration (greater than the measurement tolerance factor Zsm), the Scanner willdetect the change and switch the OSSDs to OFF. The reference contour monitoring function can also prevent aninappropriate Field Pair from becoming active.The design of the installation and the risk assessment must identify the need and use of the reference contour (surface)monitoring function. In horizontal applications, this function ensures that the safeguarded area does not change due tothe Scanner moving or changing position because an of impact, vibration, or poor maintenance practices (e.g.,rotational movement). In a vertical application, the position of the Protective Field has a critical impact on the separation(safety) distance. If there is an angular movement of the Scanner that causes the Protective Field to be positioned closerto the hazard, an individual could access the hazard before the machine can stop (i.e., the safety distance is too short).With a vertical Protective Field (angle of approach greater than ±30º) it is required that at least two sides, areas, orsurfaces of the Protective Field must be defined as reference contour. These two surfaces should be at differing anglesto each other (e.g., two legs of a right-angle corner). A surface in the Warning Field cannot be assigned as a referencecontour.When one of the following is selected in the configuration software, the software will automatically define the boundaryof the Protective Field as the reference contour (shown as blue segments). This can be manually adjusted in theconfiguration software. Passage Control – access guarding (Access/Perimeter Guarding) Arm Protection – point of operation (Vertical Guarding – Arm Detection) Hand Protection – point of operation (Vertical Guarding – Hand Detection)For more information on how to create a Protective Field and use a reference surface, see the AG4soft SoftwareManual.1 Physical frame for reference surface2 Reference surface, must form at leasttwo sides of the PF3 Scanner4 Distance "e" between the referencecontour frame and machine opening,recommended: e > 150 mm5 Machine opening contourFigure 1-10. Vertical Protective Field and reference surface for hazard point guardingWARNING . . . REFERENCE CONTOURSThe design of the installation and the risk assessment must identify the need and use of the reference contour (surface) monitoringfunction. A change in the position or mounting of the Scanner can result in gaps/unmonitored areas or an incorrect (too small) safety distance(minimum distance). It is recommended that Reference Contour Monitoring be used for all stationary applications that have surfaces that can bemonitored.Failure to follow these recommendations can potentially create a dangerous situation that may lead to serious injury or death.1.12.6 Alarm (Auxiliary) OutputsTwo auxiliary output functions provide current sourcing (PNP) solid-state output (100 mA max.) and are used fornon-safety control functions; a typical use is to signal the state of the OSSDs to a programmable logic controller (PLC).The Alarm outputs can have a different response time from the Protective Field response time. The response time canBuy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com |
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