UNE-EN 574:1997
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
SAFETY OF MACHINERY. TWO-HAND CONTROL DEVICES. FUNCTIONAL ASPECTS. PRINCIPLES FOR DESIGN.
Hardcopy , PDF
29-12-2009
Spanish, Castilian
24-05-1997
Foreword
1 Scope
2 Normative references
3 Definitions
3.1 Two-hand control device
3.2 Input signal
3.3 Control actuating device
3.4 Simultaneous actuation
3.5 Synchronous actuation
3.6 Signal converter
3.7 Signal processor
3.8 Output signaL
3.9 Response time
3.10 Mobile two-hand control device
4 Types of two-hand control devices and their selection
5 Characteristics of safety functions
5.1 Use of both hands (simultaneous actuation)
5.2 Relationship between input signals and output
signal
5.3 Cessation of the output signal
5.4 Prevention of accidental operation
5.5 Prevention of defeat
5.6 Re-initiation of the output signal
5.7 Synchronous actuation
6 Requirements related to categories of control
6.1 Category selection
6.2 Use of category 1
6.3 Use of category 3
6.4 Use of category 4
7 Use of programmable electronic systems
8 Prevention of accidental actuation and of defeat
8.1 Common considerations
8.2 Prevention of defeat using one hand
8.3 Prevention of defeat using hand and elbow of the
same arm
8.4 Prevention of defeat using the forearm(s) or
elbow(s)
8.5 Prevention of defeat using one hand and any other
part of the body (eg. knee, hip)
8.6 Prevention of defeat by blocking one control
actuating device
8.7 Accidental actuation
9 General requirements
9.1 Ergonomic requirements
9.2 Operating conditions, environmental influences
9.3 Enclosures
9.4 Selection, design and installation of control
actuating devices
9.5 Prevention of unintended output signals by
acceleration forces
9.6 Unintended operation of mobile and portable hand
held machines
9.7 Mobile two-hand control devices
9.8 Safety distance
10 Verification
10.1 General requirements for verification
10.2 Visual inspection
10.3 Performance check
10.4 Measurement
10.5 Prevention of defeat
11 Marking
12 Information for installation, use and maintenance
12.1 Provision of information
12.2 Installation instructions
Annexes
A (normative) Measurement tests for the prevention of
defeat
B (informative) Use of categories (according to EN 954-1
1996) in types of two-hand control devices
C (informative) Bibliography
ZA (informative) Relationship of this European Standard with
EU Directives
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