SICK EtherCAT microScan3 User Manual

Minimum distance to permanently installed structures (e.g. racks)
T
he collision protection field must be at a sufficient distance from permanently instal‐
led structures (e.g. racks) that are located laterally along the travel path. This prevents
the collision protection field from detecting adjacent rack structures when the industrial
truck makes yawing movements.
In order for the collision protection field to cover the entire reference target at all times,
the reference target must have a minimum lateral distance from racks.
Calculation of the minimum distance to permanently installed structures
D
R
T
= (L
CPF
× tan α) + TZ
•
D
RT
= minimum distance of the reference target (outer edge) to permanently
installed structures when the industrial truck is in the center of the track
•
L
CPF
= length of the collision protection field
7)
•
α = maximum yaw angle of the industrial truck including angular resolution of the
safety laser scanner
8)
.
•
TZ = tolerance zone of the safety laser scanner, see "Data sheet", page 160
4.3.10.2.3 Length of the collision protection field
Overview
T
he collision protection field must be designed in such a way that 2 industrial trucks
moving towards each other head-on are braked in good time. The collision protection
field must be long enough to bring both industrial trucks to a standstill under all
conditions before they or their loads touch each other.
Calculation of the length of the collision protection field
L
CP
F
= (2 × L
Stop
) + L
RT
+ L
SLS
+ Z
CPF
•
L
CPF
= length of the collision protection field
•
L
Stop
= maximum stopping distance for the braking mechanism triggered by the
collision protection field including any necessary supplements for brake wear. The
stopping distance must take into account the response time of the safety laser
scanner, the controller and, if necessary, other elements.
7)
•
L
RT
= maximum distance of the reference target to the leading edge of the indus‐
trial truck or load
8)
.
•
L
SLS
= maximum distance from the mounting position of the safety laser scanner
to the leading edge of the industrial truck or the load
8)
.
•
Z
CPF
= supplement to the collision protective field due to the measurement toler‐
ance (100mm)
Example
•
L
St
op
= 3850mm
9)
•
L
RT
= 1400mm
•
L
SLS
= 1200mm
•
Z
CPF
= 100mm
L
CPF
= (2 × 3850mm) + 1400mm + 1200mm + 100mm = 10400mm = 10,4m
7)
T
he maximum value of all industrial trucks under all occurring conditions always applies.
8)
The maximum value of all industrial trucks under all occurring conditions always applies
9)
Stopping distance at maximum load = 3500mm, factor for wear of brakes = 1.1
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8025220/1L9Q/2023-08-14 | SICK O P E R A T I N G I N S T R U C T I O N S | microScan3 – EtherCAT®
59
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