Siemens EN 50295 manual 3SF7 834-6DD00, Pack 3RX9 307-0AA00

AS-Interface

AS-Interface Safety at work

AS-Interface laser scanner LS4

■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)
	85
in ms
- 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
	81
in mm
• For activated dust suppression
in mm
- For protective zone size
	81
< 3.5 mm
- For protective zone size
	98
> 3.5 mm
• Additional for reflectors in mm
- Over 1.2 m behind the
	0
protective zone line
- In the protective zone or up to
	110
1.2 m behind the protective
zone line
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
	Up to DC 30
in V
• 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
	Connection of a generally
programming	available AS-Interface address
	programmer
RS232 interfaces for each infrared	For device parameterization and
interface	zone function
Optical system
• Angular zone in °
	190
• Angular resolution in °
	0.36
• Lateral tolerance in °
- Without mounting system (with
	0.18	6
reference to the rear panel of the
housing)
- With mounting system (with ref-
	￿0.22
erence to the mounting surface)
• 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 mm2, shielded)
• Note
	Shield must be connected to PE
	at the cabinet end only
Transmitter	Infrared laser diode (￿= 905 nm)
Dimension spacing in mm
• Middle of the scan plane to
	48,75
bottom edge of housing
• Rear edge of housing to axis of
	101
rotating mirror
Housing
• LS4
	Cast aluminum, plastic
• AS-Interface rucksack
	Plastic, steel connection plate
Vibration stress over three axes	10 to 150 Hz, max. 5 g
acc. to IEC 60068, Part 2-6
Continuous shock over three axes	10 g, 16 ms
acc. to IEC 60068, Part 2-29
Rotating mirror drive	Brushless DC motor
Rotating mirror bearings	Maintenance-free ball bearings

Siemens IK PI · 2004

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