SICK EtherCAT microScan3 User Manual

•
R
esolution (detection capability) of the safety laser scanner
•
Type of approach:parallel
•
Parameters specified based on the application
•
Supplements for general and, possibly, reflection-based measurement errors
•
Supplement to protect against reaching over
•
Height of the scan plane
•
Switching time between monitoring cases
Important information
NOTE
A
dditional information is available in the ISO13855 standard and in the Guide for Safe
Machinery.
NOTE
SIC
K offers a stopping/run-down time measurement service in many countries.
Calculation example of the minimum distance S according to ISO13855
T
he example shows the calculation of the minimum distance for parallel approach
to the protective field. Depending on the application and the ambient conditions a
different calculation may be required. (e.g., a protective field or at an arbitrary angle to
the direction of approach or an indirect approach)
►
Calculate S using the following formula:
S = 1,600mm/s × T + TZ + Z
R
+ C
R
O
where:
°
S =minimum dis
tance in millimeters (mm)
°
T = stopping/run-down time for the entire system in seconds (s)
(Response time of the safety laser scanner + machine stopping time, incl.
r
esponse time of the machine control system and signal propagation time)
°
T
Z = tolerance zone of the safety laser scanner, see "Data sheet", page 160
°
Z
R
=supplement for reflection-based measurement errors in millimeters
(mm)
°
C
RO
= supplement to protect against reaching over, in millimeters (mm)
The reach/approach speed is already included in the formula.
Supplement Z
R
f
or reflection-based measurement errors
All devices: If there is a retroreflector in the vicinity of the protective device (distance
of the retroreflector from protective field ≤6m), you must take the supplement Z
R
=
350mm into account.
Devices with max. protective field range of 9m for stationary applications: Strongly
reflective surfaces (e.g. shiny metal, tile) with a distance from the protective field ≤6m
can behave similarly to a retroreflector if the laser beam hits the surface vertically. If
the protective field is larger than50% of the protective field range in the direction of
the laser beam which is hitting the surface vertically, you must take supplement Z
R
=
350mm into account in this direction.
3)
Supplement Z
R
must be upheld at least at a
width of 3 × d (d = set object resolution) around the laser beam which hits the surface
vertically.
Supplement C
R
O
to protect against reaching over
Under certain circumstances, a person can reach the hazardous area by reaching over,
before the protective device stops the dangerous state. Supplement C
RO
prevents this.
3)
T
he protective field range depends on the set scan cycle time and resolution.
4 P
ROJECT PLANNING
36
O P E R A T I N G I N S T R U C T I O N S | microScan3 – EtherCAT® 8025220/1L9Q/2023-08-14 | SICK
Subject to change without notice

SICK EtherCAT microScan3 Specifications

General

Scanning angle	275°
Interfaces	EtherCAT
Protection class	IP65
Supply voltage	24 V DC
Resolution for protective field	30 mm
Operating voltage	24 V DC
Scanning range	5.5 m
Number of fields	128
Number of monitoring cases	128
Response time	30 ms
Operating temperature	0 °C to 50 °C
Field of application	Industrial safety
Light source	Infrared laser, 905 nm
Connection type	M12
Weight	1.2 kg