Wintriss Shadow VI, Руководство пользователя

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Shadow VI User Manual 1107200
Fixed and Floating Blanking Chapter 3 page 71
Adding to Safety Distance for Fixed Blanking
DANGER
!
INCORRECT SAFETY DISTANCE WHEN USING BLANKING WINDOWS
•
Ensure that the correct safety distance exists between the light curtain and the hazardous
area. See Chapter 2 for detailed information on object sensitivity, depth penetration factor
and calculating the safety distance.
•
When more than one beam is blanked, but the blanked area is not completely obstructed,
the depth protection factor is at least 36” (914.4 mm).
•
Maintain access to blanking master and slave windows under supervisory control to avoid
unauthorized usage.
•
Remove blanking windows when they are no longer needed.
Failure to comply with these instructions will result in death or serious injury.
Use this rule of thumb for increasing safety distance. Add 2.6" (6.6 cm) to the calculated
safety distance for every blanking window used.
On the other hand, if the blanked area is entirely blocked by a fixture from the transmitter to
the receiver such that operator intrusion into this area is impossible, then you do not have to
change the safety distance. For instance, you might have a work table that extends into the
light field but takes up the whole space between the transmitter and receiver which is
unprotected by the light curtain.
Adding to Safety Distance for Floating Window
DANGER
!
INCORRECT SAFETY DISTANCE WHEN USING FLOATING WINDOW
•
Ensure that the correct safety distance exists between the light curtain and the hazardous
area. See Chapter 2 for detailed information on object sensitivity, depth penetration factor
and calculating the safety distance.
•
Add 2.6” (6.6 cm) to the calculated safety distance when you use floating window. This
compensates for the change in object sensitivity to 2” from 1 ¼”.
Failure to comply with these instructions will result in death or serious injury.
As with fixed blanking, using the floating blanking window feature affects safety distance
because the
sensitivity of the light curtain is altered. If you enable the floating window option
in the control, add 2.6" (6.6 cm) to your calculated safety distance. By doing this, you
compensate for the increased object sensitivity when floating window is enabled (from 1
1/4
"
to 2").