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14
Fixed Blanking with Floating Blanking
Section 5-3
5-3
Fixed Blanking with Floating Blanking
!WARNING
Use of Fixed Blanking and Floating Blanking will make MS2800 system less
sensitive to objects in the detection zone. Improper use of these features can
result in severe injury to personnel. Fixed Blanking may require a hard barrier
guard. Fixed Blanking and Floating Blanking may require an increase in the
safety distance. Read the following section carefully.
Possible combinations:
When both Fixed Blanking and Floating Blanking are selected, the floating
channels are allowed to occur anywhere within the detection zone except the
area selected by Fixed Blanking.
5-3-1
The effect of Fixed or Floating Blanking on minimum object
resolution
When fixed Blanking and/or Floating are active, the safe mounting distance is
affected. Fixed and Floating Blanking desensitize the light curtain and
increase the size of the minimum detectable object. The increase is equal to
the beam spacing distance for each beam that is disabled.
If the size of the object detected by the system increases the minimum safe
distance must also be increased. Use the minimum object sensitivity given in
the following tables to determine the new figure to use when computing the
safety distance.
MS2800 system - 14 mm resolution
MS2800 system - 30 mm resolution
Function
Fixed Blanking
Floating Blanking
Fixed Blanking
N/A
Yes
Floating Blanking
Yes
N/A
Total number of Beams Disabled by
Fixed and/or Floating Blanking
Effective Resolution
None
14 mm
1 Beam
24 mm
2 Beams
34 mm
3 Beams
44 mm
4 Beams
54 mm
5 Beams
64 mm
> 64 mm
Total number of Beams Disabled by
Fixed and/or Floating Blanking
Effective Resolution
None
30 mm
1 Beam
50 mm
> 64mm
Summary of Contents for MS2800E
Page 3: ...iv ...
Page 5: ...vi ...
Page 19: ...2 Section ...
Page 25: ...8 MS2800FS Cascaded Series Section 4 3 ...
Page 33: ...16 Optical Synchronization Section 5 4 ...
Page 39: ...22 Selecting Scan Codes Section 7 7 ...
Page 41: ...24 Auxiliary Output Section 8 2 ...
Page 51: ...34 General Mounting Considerations Section 10 3 ...
Page 57: ...40 Using the test object Section 13 3 ...
Page 59: ...42 Section ...
Page 85: ...68 Accessories Section 15 9 ...
Page 87: ...70 Section ...
Page 91: ...74 Receiver Error Codes Section 17 5 ...
Page 95: ...78 ...