Monitoring Case Switching Time; Tolerance Band Of The Contour As Reference Field; Tected Opening, Edge Of The Protected Opening = Reference Contour) - SICK microScan3 Core I/O Operating Instructions Manual

4.3.5

Monitoring case switching time

8016346/1NTM/2024-06-03 | SICK
Subject to change without notice
Protective field and reference contour field for access protection
•
If the reference contour represents the edge of the protected opening, its distance
from the protective field must not exceed 100 mm. A distance equal to the
TZ value is recommended for high availability and sufficient protection. (TZ =
tolerance zone of the safety laser scanner,
• If the reference contour does not represent the edge of the protected opening, the
protective field must be larger than the protected opening. The required overrun
(o) is calculated using the same formula as for hazardous point protection.
Figure 23: Tolerance band of the contour as reference field (protective field within the protected
opening, edge of the protected opening = reference contour)
Tolerance band of the reference contour field
1
Distance of the protective field from the reference contour, to ensure availability
2
When switching between monitoring cases, it is possible that a person may already be
in the newly activated protective field when switching takes place. Only switching in time
(namely before the danger arises for the person at this location) ensures protection.
DANGER
Hazard due to lack of effectiveness of the protective device
Switching of the monitoring case should be timed so that the safety laser scanner
►
detects a person in the protective field with a sufficient minimum distance, before
the dangerous state occurs.
see "Data sheet", page
1 2
O P E R A T I N G I N S T R U C T I O N S | microScan3 Core I/O
PROJECT PLANNING
144.)
4
31