Banner AG4 Series Safety Laser Scanner
4.6.5
PF with Reference Surface
With a vertical PF at least two sides of the PF contour must defined as reference contour in accordance with IEC 61496-3. The objective is to
continuously monitor the reference contour of the PF. If the relationship between the Scanner and the reference changes, the safety outputs or
switching function switch off.
1 Protective
Field PF1 guards the
“
left conveyor lane
”
2 Scanner
3 Reference contour of Protective Field PF1, left frame and floor
4 Protective Field PF2 guards “both conveyor lanes”
5 Reference contour of Protective Field PF2, right frame and floor
Figure 28. Define the Protective Field and reference contours, stationary access guarding, vertical Protective Field
Procedure Basics -
NOTE: For more information on the configuration steps see the AG4soft Software Instruction Manual.
1.
Determine where to place the Scanner.
2.
Make sure you have the reference surfaces that are needed.
3.
Determine all of the response times including the AG4, interface relays, machine stop function.
4.
Consider and account for any factors that could increase the dangerous motion stop time e.g., brake performance degradation.
5.
Consider and account for other factors that may require an increase in the minimum separation distance such as
Z
refl
.
6.
Based on the field resolution, calculate the value for
Dpf
or
C
if needed.
7.
With the information above, calculate the minimum separation distance using either US or European standards.
8.
Mount the Scanner where is will be used in the application.
9.
Configure the Scanner with the proper start up, restart (reset) and other safety-relevant parameters (AG4 response time
< 80ms
).
10.
In the configuration software select the access guarding presetting before configuring the protective fields. The software consequently
requests a reference contour on at least two sides of the protective field.
NOTE: This configuration process is described in the
AG4soft Software Instruction Manual.
11.
When defining the protective field limits, specify the sectors that are used as reference surface segments.
12.
When defining the protective field ensure that there are no gaps bigger than 150 mm.
13.
Select an appropriate location for the start/restart (reset) button.
14.
Under controlled conditions where no personnel are exposed to the hazard, test the Scanner along these boundary markings.
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P/N 144924 05/2009
Product Manual
