AS/NZS 3947.5.2:2000

1 - AS/NZS 3947.5.2:2000 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS-PROXIMITY SWITCHES
4 - PREFACE
6 - CONTENTS
9 - 1 General
9 - 1.1 Scope and object
10 - 1.2 Normative references
11 - 2 Definitions
13 - 2.1 Basic definitions
13 - 2.1.1 proximity switch
13 - 2.2 Parts of a proximity switch
13 - 2.2.1 semiconductor switching element
13 - 2.2.2 reference axis
14 - 2.2.3 standard target
14 - 2.2.4 free zone
14 - 2.2.5 damping material
14 - 2.2.6 non-damping material
14 - 2.2.7 sound-reflecting material
14 - 2.2.8 sound-absorbing material
14 - 2.2.9 embeddable proximity switch
14 - 2.2.10 non-embeddable proximity switch
14 - 2.2.11 sensing face
15 - 2.2.12 emitter
15 - 2.2.13 receiver
15 - 2.2.14 reflector
15 - 2.2.15 adjuster
15 - 2.3 Operation of a proximity switch
15 - 2.3.1 operating distances ( s)
16 - 2.3.2 lateral approach
16 - 2.3.3 axial approach
17 - 2.3.4 repeat accuracy ( R)
17 - 2.3.5 differential travel ( H)
17 - 2.4 Switching element characteristics
17 - 2.4.1 switching element function
17 - 2.4.2 independent (snap) action
17 - 2.4.3 frequency of operating cycles (f)
17 - 2.4.4 time delay before availability
18 - 2.4.5 Currents (I)
18 - 2.4.6 excess gain for a photoelectric proximity switch
18 - 2.4.7 ambient light for a photoelectric proximity switch
20 - 3 Classification
20 - 3.1 Classification according to sensing means
20 - 3.2 Classification according to the mechanical installation
20 - 3.3 Classification according to the construction form and size
20 - 3.4 Classification according to switching element function
20 - 3.5 Classification according to type of output
20 - 3.6 Classification according to method of connection
20 - 4 Characteristics
20 - 4.1 Summary of characteristics
21 - 4.1.1 Operation of an inductive or capacitive proximity switch
21 - 4.1.2 Operation of an ultrasonic proximity switch
21 - 4.1.3 Operation of a photoelectric proximity switch
21 - 4.2 Operating conditions
21 - 4.2.1 Operating distance(s) of inductive and capacitive proximity switches
21 - 4.2.2 Operating distance(s) of an ultrasonic proximity switch
21 - 4.2.3 Operating distance(s) of a photoelectric proximity switch
23 - 4.3 Rated and limiting values for the proximity switch and switching element(s)
23 - 4.3.1 Voltages
23 - 4.3.2 Currents
24 - 4.3.3 Rated supply frequency
24 - 4.3.4 Frequency of operating cycles (f)
24 - 4.3.5 Normal load and abnormal load characteristics
24 - 4.3.6 Short-circuit characteristics
24 - 4.4 Utilization categories for the switching element
25 - 5 Product information
25 - 5.1 Nature of information
25 - 5.1.1 Identification
26 - 5.2 Marking
26 - 5.2.1 General
26 - 5.2.2 Terminal identification and marking
26 - 5.2.3 Functional markings
26 - 5.3 Instruction for installation, operation and maintenance
26 - 6 Normal service, mounting and transport conditions
26 - 6.1 Normal service conditions
26 - 6.1.1 Ambient air temperature
27 - 6.1.2 Altitude
27 - 6.1.3 Climatic conditions
27 - 6.2 Conditions during transport and storage
27 - 6.3 Mounting
27 - 7 Constructional and performance requirements
27 - 7.1 Constructional requirements
27 - 7.1.1 Materials
27 - 7.1.2 Current-carrying parts and their connections
28 - 7.1.3 Clearances and creepage distances
28 - 7.1.4 Actuation
28 - 7.1.5 Vacant
28 - 7.1.6 Vacant
28 - 7.1.7 Terminals
29 - 7.1.8 Vacant
29 - 7.1.9 Provisions for protective earthing
30 - 7.1.10 Degree of protection
30 - 7.1.11 Requirements for proximity switches with integrally connected cables
30 - 7.1.12 Class II proximity switches
30 - 7.2 Performance requirements
30 - 7.2.1 Operating conditions
33 - 7.2.2 Temperature rise
34 - 7.2.3 Dielectric properties
34 - 7.2.4 Ability to make and break under normal load and abnormal load conditions
36 - 7.2.5 Conditional short-circuit current
36 - 7.2.6 Electromagnetic compatibility (EMC)
37 - 7.2.7 Emission requirements
37 - 7.3 Physical dimensions
38 - 7.4 Shock and vibration
38 - 7.4.1 Shock
38 - 7.4.2 Vibration
38 - 7.4.3 Results to be obtained
38 - 8 Tests
38 - 8.1 Kinds of tests
38 - 8.1.1 General
38 - 8.1.2 Type tests
39 - 8.1.3 Routine tests
39 - 8.1.4 Sampling tests
39 - 8.1.5 Special tests
39 - 8.2 Compliance with constructional requirements
39 - 8.3 Performances
39 - 8.3.1 Test sequences
40 - 8.3.2 General test conditions
41 - 8.3.3 Performance under no load, normal load and abnormal load condition
47 - 8.3.4 Performance under short-circuit current conditions
48 - 8.4 Testing of operating distances
48 - 8.4.1 Inductive, capacitive, non-mechanical magnetic and ultrasonic proximity switches
49 - 8.4.2 Photoelectric proximity switches
52 - 8.5 Testing for the frequency of operating cycles
52 - 8.5.1 Method for measuring the frequency of operating cycles
54 - 8.5.2 Results to be obtained
54 - 8.5.3 Photoelectric proximity switches
56 - 8.6 Verification of the electromagnetic compatibility
56 - 8.6.1 Electromagnetic field immunity
56 - 8.6.2 Electrostatic discharge immunity
56 - 8.6.3 Fast transient immunity
56 - 8.6.4 Emission requirements
57 - 8.7 Test results and test report
58 - Annex A - Specification sheets
58 - MODEL IA - INDUCTIVE CYLINDRICAL PROXIMITY SWITCHES WITH THREADED BARREL
58 - A.1 (IA) Dimensions
59 - A.2 (IA) Rated operating distances
59 - A.3 (IA) Installation (mounting)
60 - A.4 (IA) Frequency of operating cycles (f) in operating cycles per second – Minimum requirements
61 - MODEL IB - INDUCTIVE CYLINDRICAL PROXIMITY SWITCH INDUCTIVE CYLINDRICAL PROXIMITY SWITCH
61 - A.1 (IB) Dimensions
61 - A.2 (IB) Rated operating distances
62 - A.3 (IB) Installation (mounting)
62 - A.4 (IB) Frequency of operating cycles (f) in operating cycles per second – Minimum requirements
63 - MODEL IC - INDUCTIVE RECTANGULAR PROXIMITY SWITCHES WITH SQUARE CROSS-SECTION
63 - A.1 (IC) Dimensions
65 - A.2 (IC) Rated operating distance
65 - A.3 (IC) Installation (mounting)
67 - A.4 (IC) Frequency of operating cycles (f) in operating cycles per second – Minimum requirements
68 - MODEL ID - INDUCTIVE RECTANGULAR PROXIMITY SWITCHES WITH RECTANGULAR CROSS-SECTION
68 - A.1 (ID) Dimensions
69 - A.2 (ID) Rated operating distance
69 - A.3 (ID) Installation (mounting)
69 - A.4 (ID) Frequency of operating cycles (f) in operating cycles per second – Minimum requirements
70 - MODEL CA - CAPACITIVE CYLINDRICAL PROXIMITY SWITCHES WITH THREADED BARREL
70 - A.1 (CA) Dimensions
71 - A.2 (CA) Rated operating distance
71 - A.3 (CA) Installation (mounting)
71 - A.4 (CA) Frequency of operating cycles ( f)
72 - MODEL CB - CAPACITIVE PROXIMITY SWITCHES WITH SMOOTH BARREL
73 - MODEL CC - CAPACITIVE RECTANGULAR PROXIMITY SWITCHES WITH SQUARE CROSS-SECTION
73 - A.1 (CC) Dimensions
74 - A.2 (CC) Rated operating distances
74 - A.3 (CC) Installation (mounting)
74 - A.4 (CC) Frequency of operating cycles ( f)
75 - MODEL CD - MODEL CD WITH RECTANGULAR CROSS-SECTION
75 - A.1 (CD) Dimensions
75 - A.2 (CD) Rated operating distance
76 - A.3 (CD) Installation (mounting)
76 - A.4 (CD) Frequency of operating cycles ( f)
77 - MODEL UA - THREADED BARREL ULTRASONIC CYLINDRICALPROXIMITY SWITCHES
77 - A.1 (UA) Dimensions
78 - A.2 (UA) Sensing range
78 - A.3 (UA) Installation (mounting)
78 - A.4 (UA) Frequency of operating cycles (f)
79 - MODEL UC - ULTRASONIC RECTANGULAR PROXIMITY SWITCHES WITH SQUARE CROSS-SECTION
79 - A.1 (UC) Dimensions
79 - A.2 (UC) Sensing range
80 - A.3 (UC) Installation (mounting)
80 - A.4 (UC) Frequency of operating cycles (f)
81 - MODEL UD - ULTRASONIC RECTANGULAR PROXIMITY SWITCHES WITH RECTANGULAR CROSS-SECTION
81 - A.1 (UD) Dimensions
81 - A.2 (UD) Sensing range
82 - A.3 (UD) Installation (mounting)
82 - A.4 (UD) Frequency of operating cycles ( f)
83 - Annex B - Class II proximity switches insulated by encapsulation – Requirements and tests
83 - B.1 General
83 - B.2 Definitions
83 - B.5 Marking
84 - B.7 Constructional and functional requirements
84 - B.8 Tests
87 - Annex C - Additional requirements for proximity switches with integrally connected cables
87 - C.1 General
87 - C.2 Definitions
87 - C.7 Constructional and performance requirements
88 - C.8 Tests
89 - Annex D - Integral connectors for plug-in proximity switches
95 - Annex E - Additional requirements for proximity switches suitable for use in strong magnetic fields
95 - E.1 General
95 - E.2 Definitions
96 - E.3 Classification
96 - E.7 Construction and performance requirements
97 - E.8 Tests
100 - Annex F - Symbols for proximity switches

Applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects in a magnetic field. This Standard is identical with and reproduced from IEC 60947-5-2:1997/Amd 1:1999.

This part of IEC 60947 applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field.These proximity switches are self-contained, have semiconductor switching elements(s) and are intended to be connected to circuits, the rated voltage of which does not exceed 250 V 50 Hz/60 Hz a.c. or 300 V d.c. This Standard is not intended to cover proximity switches with analogue outputs.The object of this standard is to state for proximity switches: definitions; classification; characteristics; product information; normal service, mounting and transport conditions; constructional and performance requirements; tests to verify rated characteristics.

First published as AS 3947.5.2-1995.Revised and redesignated as AS/NZS 3947.5.2:2000. First published as AS 3947.5.2-1995. Revised and redesignated as AS/NZS 3947.5.2:2000.