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05 · economic advantages ... Crane distance protection to wall and/or end of runway Crane safety...
Transcript of 05 · economic advantages ... Crane distance protection to wall and/or end of runway Crane safety...
05.2
016
Distance protection system
in Performance Level PL b, PL c and PL d
The application or the building statics may make distance protection for crabs and/or cranes necessary. Nowadays state of the art technical developments allow for distance protection systems whose structure and operation are convenient, reliable, low-maintenance and extremely cost-effective. STAHL CraneSystems’ team of engineers and technicians always keeps up to date. You can rely on their practice orientated experience. Crane and crab distance protection is provided by light barriers or laser distance sensors and, depending on the version, by the field-proven evaluation device SMC or the two-channel safety shut-off device SCC.
Versions for Performance Level PL b, PL c and PL d employ the recognised and reliable laser scanner technology. These elevate the technology to a higher level of safety and convenience compared to light barrier solutions. The laser scanners continuously monitor the distance, so that any break in the visual range is detected immediately and the crane is brought to a stop. Performance Level PL b is used for crane distance protection with no static relevance, for example to prevent mechanical collisions. Performance Level PL c is the minimum specification if a collision between cranes must be prevented for static reasons. Transporting molten metal or applications with a similar hazard potential demand Performance Level PL d.
The operating company performs the hazard analysis and determines the Performance Level required. As an alternative, the Performance Level may be specified by the applied standard.
Distance protection system
�� Innovative technology with economic advantages�� For safety levels PL b, PL c and PL d�� Laser system with extremely long
distance measurement up to 75 m (up to 100 m as an option)�� Temperature range –10 °C to +60 °C�� Parametrisable�� Flexible, adaptable�� The distance is monitored contin-
uously, any break in the visual range is detected immediately
The facts
The utmost safety for people, machines and production goods has top priority. This means that risks must be reduced by employing the highest practicable safety level. EN ISO 13849 (Safety of machines – Safety-related parts of control systems) is the basic standard and deals with all safety requirements on all types of machines. It is aimed at manufacturers, and thus also at crane and systems builders and operating companies that may carry out or commission safety-relevant modifications. A multi-stage hazard analysis defines the machinery requirements to be met. The Performance Level is determined on the basis of a hazard graph.
S = Danger of injury F = Frequency of hazardP = Possibility of prevention
Starting point for assess - ment of risk minimi sation
High risk
Low risk
P1F1
F2
F1
F2
a
e
b
c
d
P1
P1
P1
P2S1
S2
P2
P2
P2
Travel motion with crane or crab distance protection
Adjustable distance rangeStop
Smooth deceleration
Normal travel motion
75 150m
Current characteristic of laser scanner (mA)
24
0
4
8
12
16
20
Crane distance protectionCollision protection for two or more crane bridges to one another and/or safety distance protection for static reasons
Crab distance protectionCollision protection for two or more crabs to one another
Crane distance protection to wall and/or end of runwayCrane safety distance protection to wall of production building and/or end of crane runway
Crab distance protection to wall and/or end of runwayCrab safety distance protection to wall of production building and/or end or crane bridge and bypass control to secure a section of the building
Presented by
Argentina Australia Austria Belgium Brazil Bulgaria Canada Chile
China Columbia Croatia Cyprus Czech Republic Denmark Ecuador Egypt Estonia Finland France Germany Great Britain Greece Hongkong Hungary India
Indonesia Iran Ireland Israel Italy Jordan Korea (South) Latvia Libanon
Libya Lithuania Malaysia Mexico Netherlands Norway
Pakistan Peru Poland Portugal Romania Russia Singapore Slovakia Slovenia South Afrika Spain
Sweden Switzerland Syria Taiwan Venezuela Vietnam Thailand Turkey UAE Uruguay USA
Vertriebspartner Tochtergesellschaften
Argentina Australia Austria Belgium Brazil Canada Chile China Columbia Croatia Czech Republic
Denmark Ecuador Egypt Estonia Finland France Germany Great Britain Greece Hongkong Hungary India Indonesia
Ireland Israel Italy Jordan Latvia Lebanon Lithuania Malaysia Mexico
Netherlands Nigeria Norway Pakistan Peru Philippines Poland Portugal Rumania Russia
Taiwan Thailand Turkey UAE Uruguay USA Venezuela Vietnam Singapore Slovakia Slovenia South Africa South Korea Spain Sweden Syria
Sales partners Subsidiaries
STAHL CraneSystems GmbH Daimlerstr. 6, 74653 Künzelsau, Germany Tel +49 7940 128-0, Fax +49 7940 [email protected]
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