Specifies safety requirements and guidance on the design and selection of two-hand control devices. Means for preventing defeat are given in an Appendix.
Table of contents
Header
About this publication
Preface
1 Scope
2 Objective
3 Referenced documents
4 Definitions
5 Types of two-hand control device and their selection
6 Characteristics of safety functions
6.1 General
6.2 Use of both hands (simultaneous actuation)
6.3 Relationship between input signals and output signal
6.4 Cessation of the output signal
6.5 Prevention of accidental operation
6.6 Prevention of defeat
6.7 Re-initiation of the output signal
6.8 Synchronous actuation
6.8.1 Signal general
6.8.2 Mechanical devices
6.8.3 Output signal prevention
7 Requirements related to categories of control
7.1 Category selection
7.2 Use of category 1
7.3 Use of category 3
7.4 Use of category 4
8 Use of programmable electronic systems
9 Prevention of accidental actuation and of defeat
9.1 Common considerations
9.2 Prevention of defeat using one hand
9.3 Prevention of defeat using the hand and elbow of the same arm
9.4 Prevention of defeat using the forearm(s) or elbow(s)
9.5 Prevention of defeat using one hand and any other part of the body (e.g. knee, hip)
9.6 Prevention of defeat by blocking one control actuating device
9.7 Accidental actuation
10 General requirements
10.1 Ergonomic requirements
10.2 Operating conditions and environmental influences
10.3 Enclosures
10.4 Selection, design and installation of control actuating devices
10.5 Prevention of unintended output signals by acceleration forces
10.6 Unintended operation of mobile and portable hand-held machines
10.7 Mobile two-hand control devices
10.7.1 Stability
10.7.2 Unintended motion
10.7.3 Safety distance checking
10.7.4 Interfaces
10.8 Safety distance
11 Verification
11.1 General requirements for verification
11.2 Visual inspection
11.3 Performance check
11.4 Measurement
11.5 Prevention of defeat
12 Marking
12.1 General
12.2 Labels
12.3 Multiple units
12.4 Integral units
12.5 Component identification
13 Information for installation, use and maintenance
13.1 Provision of information
13.2 Installation instructions
13.3 Instructions for use
13.4 Maintenance instructions
Appendix A
A1 General
A2 Prevention of defeat using one hand (see Clause 9.2)
A2.1 Separation by distance
A2.2 Separation by an elevated area
A2.3 Separation by orientation
A3 Prevention of defeat using hand and elbow of the same arm
A3.1 Separation by distance
A3.2 Separation by shields
A3.3 Limiting access
A3.4 Use of different types of control actuators
A4 Prevention of defeat using the forearm(s) or elbow(s)
A5 Prevention of defeat using the hand and other parts of the body
A5.1 Defeat prevention by position
A5.2 Actuators located on a near vertical surface
Cited references in this standard
Content history
AS 4024.2601-2008 REC:2018
DR 07432
Please select a variation to view its description.
