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External Teach-In Blanking (SH4-XX-XXXX-X models only)
Blanking zones configured with SH4 Designer requires a re-parametrization from the
software itself to change blanking zones.
With External Teach-In Blanking it's possible to configure blanking zones from an exter-
nal input at run-time.
The Teach-in can be activated at keeping the Teach-in pin configured active for at least 3
seconds while one or more objects intercepts the area to be blanked (see See "Input
Output Manager" on page 41. to configure the pin). The blanking zones become active
after the Teach-in contact has been released. A maximum of 5 objects can be taught.
TEACH-IN
BLANKING ZONES
OSSD
If Teach-in input is kept active for a time greater than 10s the light curtain goes in a lock-
out failure.
For teach zones a position and dimension tolerance are set based on TOLERANCE pin
connection detected at the moment of teach-in request as follow:
TOLERANCE floating
TOLERANCE connected to OSSD1
For Teach-in with TOLERANCE a minimum of two free beams must be present between
objects.
When Teach-in conditions are not respected (more than 5 objects or non-sufficient sep-
aration beams) light curtain will signal a Teach-in failure (no lockout), old teach settings
will still be active, a new teach procedure will be possible.
NOTE: External Teach-in Blanking is only possible when Blanking Zones
are not configured via SH4 Designer.
Figure 63: External teach-In blanking
NOTE: Effective resolution with tolerance active:
For 14 mm = 34
For 30 mm = 80
BLANKING (SH4-XX-XXXX-X MODELS ONLY)
SETTING 1
SETTING 2
3s < T < 10s
Zone position = teached object start beam
Zone size = teached object size
Minimum Object = teached object size
Maximum Object = teached object size
Zone position = teached object start beam -1
Zone size = teached object size +2
Minimum Object = teached object size -1
Maximum Object = teached object size +1
ACTIVE
INACTIVE
24Vdc
0Vdc
ON
OFF
PRODUCT REFERENCE GUIDE
83
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