Siemens IK PI · 2004
6/27
AS-Interface
AS-Interface Safety at work
AS-Interface laser scanner LS4
6
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Technical specifications
LS4-4 AS-Interface laser scanner
3SF7 834-6DD00
Protective zone
• Sensing range in m
0 to 4
• Luminance factor in %
Min. 1.8
• Object size (diameter) in mm
70 (cylindrical test object)
• Response time
- Double evaluation (2 scans)
in ms
85
- Adjustable up to 16 scans in ms
645
• Number
4 (selectable via switch inputs)
• Safety category
Category 3 according to
EN 954-1, Type 3 according to
IEC 61496-1 or EN 61496-3
• Output
Safe AS-Interface connection
• Start-up
Start-up testing and start-up
disable can be set separately
• Restart
160 ms to 10 s
(adjustable or manual)
Protective zone supplement
• For deactivated dust suppression
in mm
81
• For activated dust suppression
in mm
- For protective zone size
< 3.5 mm
81
- For protective zone size
> 3.5 mm
98
• Additional for reflectors in mm
- Over 1.2 m behind the
protective zone line
0
- In the protective zone or up to
1.2 m behind the protective
zone line
110
Warning zone
• Sensing range in m
0 to 15
• Luminance factor in %
Min. 20
• Object size in mm
150
´
150
• Response time in ms
- Double evaluation (2 scans)
85
- Adjustable up to 16 scans
645
• Number of warning zones
4 (selectable via switch inputs)
• Output
Connection of AS-Interface
Contour measurement
• Sensing range in m
0 to 50
• Luminance factor in %
Min. 20
• Output
RS 232 serial interface
via infra-red interface
• Radial resolution in mm
5
• Lateral resolution in °
0.36
Supply voltage
• Via AS-Interface network in V
29.5 to 31.6 (according to AS-
Interface specification)
• Via AS-Interface auxiliary voltage
in V
Up to DC 30
• Via external supply in V
24 DC (+/-20 %)
• Note
The power supply unit for the
external supply voltage as well as
the AS-Interface power supply
unit for supplying the AS-Inter-
face components must feature
safe mains isolation according to
IEC 60742 and must bridge tem-
porary mains failures of up to
20 ms (e.g. AS-Interface power
pack 3RX9 307-0AA00)
Overcurrent protection
1.25 A fuse, medium-slow
Supply current in mA
Typ. 350
LS4-4 AS-Interface laser scanner
3SF7 834-6DD00
Inputs
• Restart/Reset
Connection of a command device
for "with restart lockout“ operating
mode and/or device resets,
dynamically monitored,
24 V DC opto-decoupled
• Zone-pair switchover
Selection of zone pairs via
4 control cables with internal
monitoring (one zone pair =
one protective zone and one
warning zone),
24 V DC opto-decoupled
• Signal definition in V
- High (logical 1)
16 to 30
- Low (logical 0)
< 3
• AS-Interface address
programming
Connection of a generally
available AS-Interface address
programmer
RS232 interfaces for each infrared
interface
For device parameterization and
zone function
Optical system
• Angular zone in °
190
• Angular resolution in °
0.36
• Lateral tolerance in °
- Without mounting system (with
reference to the rear panel of the
housing)
±
0.18
- With mounting system (with ref-
erence to the mounting surface)
±
0.22
• Scan rate
25 scans/s or 40 ms/scan
• Laser protection class
- According to standard
EN 60825-1, Class 1
(safe for eyes)
- Wave length in nm
905
- Beam divergence in mrad
2
- Time base in s
100
Degree of protection
IP65
Ambient temperature in °C
• Operation
0 to +50
• Storage
-20 to +60
Housing insulation class
Protection class 2
Humidity
Acc. to DIN 40040, Table 10,
Code Letter E (medium dry)
Dimensions (W x H x D) in mm
140
´
168
´
165
Control cable X3
• Length in m
Max. 50 (for cable cross-section
of 0.5 mm
2
, shielded)
• Note
Shield must be connected to PE
at the cabinet end only
Transmitter
Infrared laser diode (
l
= 905 nm)
Dimension spacing in mm
• Middle of the scan plane to
bottom edge of housing
48,75
• Rear edge of housing to axis of
rotating mirror
101
Housing
• LS4
Cast aluminum, plastic
• AS-Interface rucksack
Plastic, steel connection plate
Vibration stress over three axes
acc. to IEC 60068, Part 2-6
10 to 150 Hz, max. 5 g
Continuous shock over three axes
acc. to IEC 60068, Part 2-29
10 g, 16 ms
Rotating mirror drive
Brushless DC motor
Rotating mirror bearings
Maintenance-free ball bearings