Tower cranes - Anti-collision systems - Safety requirements

This document specifies the requirements of anti-collision devices and systems installed on tower cranes (as defined in EN 14439) to avoid the risks of collision between several cranes in service, between a crane in use and fixed obstacles, and over prohibited zones.
It also specifies the requirements for working range limiting devices.
Anti-collision devices and systems and working range limiting devices according to this document are safety components.
It applies to anti-collision devices manufactured after the publication of this document.
NOTE   For anti-collision systems used to avoid the risk of collision with power lines, additional requirements might be necessary.
This document defines the safety characteristics and requirements of anti-collision devices and systems intended for installation on self-erecting tower cranes and tower cranes erected from parts.
In particular:
-   performance level;
-   information to be provided by the sensors installed on the crane;
-   operation, particularly in the event of failure, override and free jib slewing states of a crane;
-   type of communication between devices;
-   information for the crane operator and outside indicator.
It also specifies the requirements for marking the device or the system and the content of the instructions for use.
The significant hazards covered by this document are identified in Clause 4.
This document is not applicable to anti-collision devices and systems which are manufactured before the date of publication by CEN of this document.

Turmdrehkrane - Antikollisionssysteme - Sicherheitstechnische Anforderungen

Dieses Dokument legt die Anforderungen an Antikollisionseinrichtungen und -systeme fest, die in Turmdrehkranen für den Baubetrieb (wie in EN 14439:2006+A2:2009 definiert) installiert sind, um das Kollisionsrisiko zwischen mehreren Kranen in Betrieb, das Kollisionsrisiko zwischen einem Kran in Betrieb und feststehenden Hindernissen und das Fahren durch gesperrte Bereiche zu verhindern.
Es legt außerdem die Anforderungen an Arbeitsbereichsbegrenzer fest.
Antikollisionseinrichtungen und -systeme sowie Arbeitsbereichsbegrenzer in Übereinstimmung mit dem vorliegenden Dokument sind sicherheitstechnische Komponenten.
Dieses Dokument legt die sicherheitstechnischen Eigenschaften von und die Anforderungen an Antikollisionseinrichtungen und -systeme, die für den Einbau in Schnellmontage-Turmdrehkrane und in aus Komponenten zusammengesetzte Turmdrehkrane vorgesehen sind, fest.
Dazu zählen insbesondere folgende:
- Performance Level;
- Informationen, die von den am Kran installierten Sensoren zu liefern sind;
- Betriebsverhalten, besonders im Fehlerfall, bei Überbrückung und bei einem Kran in Windfreistellung;
- (Art der) Kommunikation zwischen den Einrichtungen;
- Informationen für den Kranführer und außen am Kran befindliche Anzeigen.
Dieses Dokument behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse, die für Antikollisionseinrichtungen und -systeme, die in Turmdrehkrane eingebaut sind, relevant sind, wenn diese bestimmungsgemäß und unter den vom Hersteller vorgesehenen Bedingungen verwendet werden. Dieses Dokument legt die zutreffenden technischen Maßnahmen fest, mit denen die Risiken, die sich aus den signifikanten Gefährdungen ergeben, beseitigt oder gemindert werden (siehe Abschnitt 4).
Dieses Dokument gilt nicht für Antikollisionseinrichtungen und -systeme, die vor dem Datum der Veröffentlichung dieses Dokuments durch CEN hergestellt worden sind.

Grues à tour - Systèmes anti-collision - Prescriptions de sécurité

Le présent document spécifie les prescriptions relatives aux dispositifs et systèmes anti-collision installés sur les grues à tour de chantier (telles qu’elles sont définies dans l’EN 144392006+A2:2009), afin d’éviter les risques de collision entre plusieurs grues en mouvement, entre une grue en mouvement et des obstacles fixes, ainsi que le déplacement au-dessus des zones interdites.
Il spécifie également les prescriptions relatives aux dispositifs de limitation de l’espace de travail.
Les dispositifs et systèmes anti-collision et les dispositifs de limitation de l’espace de travail conformes au présent document sont des composants de sécurité.
Le présent document définit les caractéristiques de sécurité et les prescriptions applicables aux dispositifs et systèmes anti-collision destinés à être installés sur les grues à tour à montage automatisé et sur les grues à tour à montage par éléments.
Elle définit notamment :
-   le niveau de performance ;
-   les informations à fournir par les capteurs installés sur la grue ;
-   le fonctionnement, notamment en cas de défaut, de neutralisation et de mise en mode girouette d’une grue ;
-   le type de communication entre les dispositifs ;
-   les informations destinées à l’opérateur de grue et la signalisation extérieure.
Le présent document traite de tous les phénomènes dangereux, situations et évènements dangereux significatifs relatifs aux grues à tour, lorsque celles-ci sont utilisées pour l'usage prévu et dans les conditions prévues par le fabricant. Le présent document spécifie les mesures techniques appropriées destinées à réduire ou éliminer les risques émanant des phénomènes dangereux significatifs (voir Article 4).
Le présent document ne s’applique pas aux dispositifs et systèmes anti-collision fabriqués avant la date de publication du présent document par le CEN.

Stolpni žerjavi - Sistemi za preprečitev trka - Varnostne zahteve

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Due Date
09-Dec-2020
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09-Dec-2020

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SLOVENSKI STANDARD
SIST EN 17076:2021
01-april-2021
Stolpni žerjavi - Sistemi za preprečitev trka - Varnostne zahteve
Tower cranes - Anti-collision systems - Safety requirements
Turmdrehkrane - Antikollisionssysteme - Sicherheitstechnische Anforderungen
Grues à tour - Systèmes anti-collision - Prescriptions de sécurité
Ta slovenski standard je istoveten z: EN 17076:2020
ICS:
53.020.20 Dvigala Cranes
SIST EN 17076:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 17076:2021
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SIST EN 17076:2021
EN 17076
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2020
EUROPÄISCHE NORM
ICS 53.020.20
English Version
Tower cranes - Anti-collision systems - Safety
requirements

Grues à tour - Systèmes anti-collision - Prescriptions de Turmdrehkrane - Antikollisionssysteme -

sécurité Sicherheitstechnische Anforderungen
This European Standard was approved by CEN on 21 September 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17076:2020 E

worldwide for CEN national Members.
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SIST EN 17076:2021
EN 17076:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 6

4 List of significant hazards ......................................................................................................................... 12

5 Technical requirements............................................................................................................................. 14

5.1 General ............................................................................................................................................................. 14

5.2 Information requested to operate the anti‐collision device and system ................................. 15

5.3 Requirements for controls of anti‐collision devices ....................................................................... 17

5.4 Additional requirements ........................................................................................................................... 17

6 Operation of the anti‐collision device .................................................................................................. 18

6.1 Start‐up sequence ........................................................................................................................................ 18

6.2 Normal operation mode of an anti‐collision device ........................................................................ 18

6.3 Defective status of an anti‐collision device......................................................................................... 19

6.4 Anti‐collision device in a free jib slewing mode................................................................................ 20

6.5 Anti‐collision device in overriding mode ............................................................................................ 20

6.6 Setting mode of an anti‐collision device .............................................................................................. 21

6.7 Communication between anti‐collision devices ............................................................................... 21

6.8 Indicators at the control station ............................................................................................................. 21

6.9 Outside indicators ........................................................................................................................................ 21

7 Verification of the safety requirements and/or protective measures ...................................... 21

8 Marking ............................................................................................................................................................ 23

9 Information for use ..................................................................................................................................... 23

9.1 General ............................................................................................................................................................. 23

9.2 Instructions for installation ..................................................................................................................... 23

9.3 Instructions for setting and functional tests ...................................................................................... 24

9.4 Instructions for use ..................................................................................................................................... 24

Annex A (informative) Selection of a suitable set of crane standards for a given application ...... 25

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of Directive 2006/42/EC aimed to be covered ..................................................... 27

Bibliography ................................................................................................................................................................. 29

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EN 17076:2020 (E)
European foreword

This document (EN 17076:2020) has been prepared by Technical Committee CEN/TC 147 “Cranes -

Safety”, the secretariat of which is held by BSI.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by June 2021 and conflicting national standards shall be

withdrawn at the latest by June 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive(s).

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this

document.
To select a suitable set of standards for a given application, see Annex A.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,

Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,

Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North

Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United

Kingdom.
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EN 17076:2020 (E)
Introduction

This document has been prepared to be a harmonized standard to provide one means for the mechanical

design and theoretical verification of cranes to conform with the essential health and safety requirements

of the Machinery Directive 2006/42/EC modified.
This document is a type C standard as stated in EN ISO 12100.

The machinery concerned and the extent to which hazards, hazardous situations and events are covered

are indicated in the scope of this standard.

When provisions of this type C standard are different from those which are stated in type A or B

standards, the provisions of this type C standard take precedence over the provisions of the other

standards, for machines that have been designed and built according to the provisions of this type C

standard.
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EN 17076:2020 (E)
1 Scope

This document specifies the requirements of anti-collision devices and systems installed on tower cranes

for construction work (as defined in EN 14439:2006+A2:2009) to avoid the risks of collision between

several cranes in service, to avoid the risks of collision between a crane in use and fixed obstacles, and to

avoid travelling over prohibited zones.
It also specifies the requirements for working range limiting devices.

Anti-collision devices and systems and working range limiting devices according to this document are

safety components.

This document defines the safety characteristics and requirements of anti-collision devices and systems

intended for installation on self-erecting tower cranes and tower cranes erected from parts.

In particular:
— performance level;
— information to be provided by the sensors installed on the crane;

— operation, particularly in the event of failure, override and free jib slewing states of a crane;

— type of communication between devices;
— information for the crane operator and outside indicator.

This document deals with all significant hazards, hazardous situations and events relevant to anti-

collision devices and systems installed on tower cranes, when used as intended and under conditions

foreseen by the manufacturer. This document specifies the appropriate technical measures to eliminate

or reduce risks arising from the significant hazards (see Clause 4).

This document is not applicable to anti-collision devices and systems which are manufactured before the

date of publication by CEN of this document.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 13557:2003+A2:2008, Cranes — Controls and control stations
EN 14439:2006+A2:2009, Cranes — Safety — Tower cranes

EN 60204-32:2008, Safety of machinery — Electrical equipment of machines — Part 32: Requirements for

hoisting machines (IEC 60204-32:2008)

EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk

reduction (ISO 12100:2010)

EN ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General

principles for design (ISO 13849-1:2015)
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EN 17076:2020 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
stop function

interruption of the crane's movement preceded by a deceleration phase (slowing down) monitored by

the anti-collision device
3.2
local fault

error related to the anti-collision device and/or the information coming from the crane on which it is

installed
3.3
normal operation mode

operation without any of the following conditions: local fault detected by the anti-collision device or free

jib slewing condition or overriding
3.4
working range limiting device
WRLD

set of components installed on the same crane whose combined actions enable management of prohibited

zones only

Note 1 to entry: Working range limiting device generally fulfils the same requirements as anti-collision device

limited to one crane without communication with other anti-collision devices.
3.5
anti‐collision device
ACD

set of components installed on the same crane whose combined actions enable management of

interference zones and/or prohibited zones
3.6
anti‐collision system
ACS

network of anti-collision devices that enable management of interference zones and/or prohibited zones,

in which each anti-collision device is an input device for the other anti-collision devices within this

network
3.7
working volume

zone or volume swept over by the hook and/or the rotating upper works of the crane

Note 1 to entry: See Figures 1 to 3.
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SIST EN 17076:2021
EN 17076:2020 (E)
Key
TC1 tower crane 1
TC2 tower crane 2
Figure 1 — Case of fixed base higher crane: working volume of TC2 (grey area)
Key
TC1 tower crane 1
TC2 tower crane 2
Figure 2 — Case of fixed base lower crane: working volume of TC1 (grey area)
Key
TC1 tower crane 1
TC2 tower crane 2
Figure 3 — Case of travelling lower crane: working volume of TC1 (grey area)
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3.8
flyover volume

limited working volume for a tower crane opposite to a free slewing tower crane according to the

following:

— for a lower crane the flyover volume is equivalent to the working volume, in a defined position in

case of travelling crane;

— for a higher crane the flyover volume is equivalent to the working volume limited to a radius equal

to the trolley position
Note 1 to entry: See Figures 4 and 5.
Key
TC1 free slewing tower crane
TC2 in service tower crane
Figure 4 — Case of travelling lower crane (TC 1)
Key
TC1 in service tower crane
TC2 free slewing tower crane
Figure 5 — Case of travelling higher crane (TC 2)
3.9
prohibited volume

defined zone or volume in which the hook and/or the presence of a part of the rotating upper works of

the crane is prohibited
Note 1 to entry: See Figures 6, 7 and 8.
3.10
stop limit

limit at which all dangerous movements have to be stopped due to an action of the ACD

Note 1 to entry: See Figure 6.
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EN 17076:2020 (E)
3.11
approach limit

limit of the zone over-swept by the hook and/or the crane element at which it is necessary to slow down

the movements of the crane in order to stop at or before the stop limit
Note 1 to entry: See Figure 6.

Note 2 to entry: The approach limit can vary according to the movement speeds. At the determination of the

approach limit the braking characteristics of each tower crane has to be taken into account individually.

Key
1 safety distance
2 crane or prohibited zones
3 approach limit
4 stop limit
Figure 6 — Example of prohibited zone, stop limit and approach limit
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EN 17076:2020 (E)
Key
1 crane
2 prohibited zone
3 approach limit is reached
–––––––––- stop limit
approach limit
Figure 7 — Example of approach limit between a crane and a prohibited zone

Note 3 to entry: Prohibited zone can be over-swept by the rotating upper works of the crane.

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EN 17076:2020 (E)
Key
1 upper crane
2 lower crane
3 approach limit is reached for both cranes
–––––––––- stop limits
approach limits
Figure 8 — Example of approach limit between two cranes

Note 4 to entry: Example with a stationary crane approaching a prohibited volume that can be swept-over by the

jib.

Note 5 to entry: For clarification, the shapes of the approach limit and the stop limit are simplified.

3.12
interference zone

working volume where two or more cranes can collide (if it is not controlled by an anti-collision system)

Note 1 to entry: See Figures 9 and 10.
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Key
TC1 tower crane 1
TC2 tower crane 2
Figure 9 — Case of fixed base cranes: interference zone (grey area)
Key
TC1 tower crane 1
TC2 tower crane 2
Figure 10 — Case of travelling lower crane: interference zone (grey area)
3.13
safety distance

distance between the stop limit and any potential interfering parts and/or from prohibited volume

Note 1 to entry: See Figures 6, 7 and 8.
3.14
setting mode

mode used to set the anti-collision or prohibited zone parameters prior to be used

3.15
override mode

operation mode bypassing the management of interference zone and/or prohibited zone

4 List of significant hazards

Table 1 contains all the significant hazards, hazardous situations and events, as far as they are dealt with

in this document, identified by risk assessment as significant for this type of machinery and which require

action to eliminate or reduce the risk.
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Table 1 — List of significant hazards and associated requirements
Hazard Hazards Relevant clause(s)
reference no. in this document
1 Mechanical hazards due to:
— Machine parts or work pieces, e.g.
e) insufficient mechanical strength; 5.1.3
1.1 Crushing hazards 5.1.4
1.2 Shearing hazards 5.1.4
1.3 Cutting or severing hazards 5.1.2; 5.1.4
8 Hazards generated by neglecting ergonomic principles in
machinery design as, e.g. hazards from:
8.1 Unhealthy postures or excessive efforts 5.1.5
8.6 Human error, human behaviour 6.4; 6.5, 6.6
8.7 Inadequate design, location or identification of manual 5.1.5
controls
8.8 Inadequate design or location of visual display units 5.1.8, 6.8, 6.9
10 Unexpected start-up, unexpected overrun/overspeed (or
any similar malfunction) from:
10.1 Failure/disorder of the control system 5.1.6; 5.1.7; 5.1.9; 6.7
10.2 Restoration of energy supply after an interruption 6.1
10.3 External influences on electrical equipment 5.4
10.5 Error in the software 5.1.6; 5.1.7; 5.1.9
11 Impossibility of stopping the machine in a safe condition 6.2; 6.5
13 Failure of the power supply 6.1
14 Failure of the control circuit 5.4; 6.3
15 Errors of fitting 5.1.3
16 Break-up during operation 5.1.3
17 Falling or ejected objects or fluid 5.1.3
Additional hazards and hazardous events due to mobility:
25 From/to third persons
25.3 Lack or inadequacy of visual or acoustic warning means 6.9
26 Insufficient instructions for the driver/operator 9
Additional hazards and hazardous events due to lifting
27.1 From loads falls, collision, machine tipping 5.1.7; 5.1.9; 5.2
29 Hazards generated by neglecting ergonomic principles:
29.1 Insufficient visibility from the driving position 5.1.5; 9.1
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5 Technical requirements
5.1 General
5.1.1 Components of anti‐collision devices and systems

The anti-collision device consists of a set of input devices, e.g. sensors, output devices and a logic module.

All output devices are already installed on the crane while some of the necessary input devices could need

to be retrofitted.
An anti-collision device and system shall include at least the following parts:
— processing unit;
— display for fixed control stations (for use by the crane operator);

— slewing sensors and, if necessary, hoisting, travelling, trolleying and luffing sensors;

— means of overriding;
— means of communication (radio, cable);
— outside indicators, see 6.9;
— interface with the tower crane.
Some of these parts may already be part of the crane, for example, the sensors.
5.1.2 Shape of the components of anti‐collision devices

For all the components of the anti-collision device installed near the control station,

EN 13557:2003+A2:2008, 5.2.1.9 shall apply.

5.1.3 Requirement for the mechanical installation of the components of anti‐collision devices on

the crane

When the anti-collision device requires having component(s) mechanically installed on the crane, they

shall be designed to be assembled and fixed in such a way to prevent errors of fitting, to prevent them

from inadvertent movement and from falling during normal operation.
The mechanical installation shall not affect the tower crane functions.
5.1.4 Crushing or shearing hazards between moving parts

When a component of the anti-collision device presents moving parts when installed on a crane, means

of guarding shall be provided in order to avoid any crushing or shearing hazards of the persons accessing

the crane with the moving parts.
5.1.5 Controls

When a component of the anti-collision device presents a means of control, it shall conform to

EN 13557:2003+A2:2008.
5.1.6 Cableless means of communication

When the anti-collision device is using a cableless means of communication for a safety function then this

safety function shall fulfil the requirements specified in 5.1.7.
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5.1.7 Safety functions

An anti-collision device and the therein used safety related parts of the control system shall perform at

least the following safety function:
Limitation of a static or dynamic changing working range.

This safety function is intended to reduce the risk of a collision of all possible parts of interfering cranes

(e.g. hoist rope against jib or counter-jib of an adjacent crane) or the risk of entering into a prohibited

zone. Adapted to the characteristics of the cranes drives, the anti-collision device has to give control

commands to slow down and stop the motion prior to reaching the actual stop limit.

This safety function and the therein used safety related parts of the control system shall fulfil at least the

Performance Level PL c, category 2 according to EN ISO 13849-1:2015.

NOTE An emergency stop initiated at the crane affects only the crane at which it has been released. This

information can be transferred to the ACD but does not initiate a reaction at other cranes, which are part of the ACS.

In case of transmission of data related to safety functions between the ACDs over a server and/or

processing of the data on this server, this server should be a safety component and considered at the

calculation of the Performance Level.
5.1.8 Indicating functions

The anti-collision shall be designed with indicating devices to inform the crane operator (see 6.8) and the

jobsite environment (see 6.9).
5.1.9 Operating computation

To manage potential interfering parts and/or entering in prohibited zone, the anti-collision device

computing shall take into account all the relevant parameters, e.g. accuracy of sensors, control system

response time.
5.2 Information requested to operate the anti‐collision device and system
5.2.1 General

Information provided by sensors which may be part either of the anti-collision device or of the tower

crane shall fulfil the requirements of this document.

Depending on the design of the ACS respectively the ACD, some or all of the information given in 5.2.2 to

5.2.6 shall be provided.
Such information shall comply with the requirements given in 5.2.2 to 5.2.6.

NOTE The accuracy includes all errors combined due to the accuracy of the sensor and the inaccuracies of the

driveline.
5.2.2 Updating time

For the smooth operation of the anti-collision device, the information provided by the sensors shall have

a maximum updating time of 200 ms.
5.2.3 Crane response time

The anti-collision device shall be designed to operate with a crane designed to have a maximum response

time of 500 ms.
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5.2.4 Crane status information
Following information shall be available for the anti-collision device:
— the crane control is powered on;
— the crane is in free slewing mode;

— crane motion control ordered by crane operator (e.g. joystick position, direction of motion(s)).

When it is possible to disengage an anti-collision device from the crane, this information shall be provided

to the anti-collision device.

In addition, when the crane is operated by cableless control, this information may be provided to the anti-

collision device.
5.2.5 Crane position information

In addition to the specified accuracy values given in Tables 2 to 6, the anti-collision device shall take into

account the effects of deflection and swinging of the crane structure disregarding the possible swinging

of the hook block and the load volume that needs to be considered in the setting (see 9.3) and the

computation (see 5.1.9) of the anti-collision device.
— Slewing angle position

The slewing angle between the fixed pivot and the rotating pivot shall have the capacity to be

assessed at 360° with the characteristics given in Table 2.
Table 2 — Characteristics of the slewing angle position
Characteristics Values
Accuracy of the slewing position value ≤ 1°
Measurement resolution ≤ 1/3°
— Trolley travelling position

The trolley position on the jib shall be measured on its entire span with the characteristics given in

Table 3.
Table 3 — Characteristics of the trolley travelling position
Characteristics Values
Accuracy of the trolley position value ≤ 50 cm
— Luffing jib angle position

The angle on the luffing jib shall be measured regardless of its position with the characteristics given

in Table 4.
Table 4 — Characteristics of the luffing jib angle position
Characteristics Values
Accuracy of the angle value ≤ 1°
Sensor resolution (angular) ≤ 1/3°
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— Hook height position
The hook height position shall be provided by indicating:
— either the position of the hook, specifying the origin of the value;

— or the relevant information requested for the calculation of hook height position.

The accuracy of the value is expressed as given in Table 5.
Table 5 — Characteristics of the hook height position
Characteristics Values
Accuracy of the hook height value
— For crane height lower or equal to 100 m < 5 m
— For crane height above 100 m < 5 %
— Crane travelling position

The crane travelling on rails shall be measured by the position of the crane's chassis with the

characteristics given in Table 6.
Table 6 — Characteristics of the crane travelling position
Characteristics Values
Accuracy of the value of the position of the crane ≤ 1 m
base on the rails.
5.2.6 Information to be input manually

All information not provided automatically shall be checked in accordance with the instruction manual,

e.g. dimensions of interfering cranes, site layout.
It shall be possible to set the safety distance in the ACD (see 9.3).
5.3 Requirements for controls of anti‐collision devices
In all relevant crane motions it shall be possible:

— to order the stop of the movement according to the crane manufacturer instructions (e.g. at slewing

motion it could be made by deceleration using counter torque or using brake);
— to order a lower speed, if available;
— to order the emergency stop of the tower crane.
5.4 Additional requirements
Anti-collision devices shall be designed to comply with EN 60204-32:2008.

The ACD or the WRLD and the crane being interdependent. Therefore the power supply shall be such that

when the crane is “on”, the ACD and/or WRLD is automatically “on”.
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SIST EN 17076:2021
EN 17076:2020 (E)
EN 60204-32:2008, 4.3.2 and 4.4.3 are modified as follows:
Alternating current supply:
−15 % of nominal voltage ≤ voltage ≤ 10 % of nominal voltage
Climatic conditions:
-25 °C ≤ ambient air temperature ≤ +50 °C
6 Operation of the anti‐collision device
6.1 Start‐up sequence

The anti-collision device shall forbid any movement until the anti-collision is ready to operate Additional

requirements are given in EN 60204-32:2008, 7.1 and 7.5.
6.2 Normal operation mode of an anti‐collision device

In normal operation mode, the anti-collision device shall take into account the operating states of the

other devices installed on interfering cranes (overriding, defective, free jib slewing, normal).

Requirements accord
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