This standard specifies the terminology, classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of photoelectric switches. This standard applies to photoelectric switches used in industrial control circuits with an AC rated voltage not exceeding 220 (380) V, a frequency of 50 Hz, and a DC rated voltage not exceeding 60 V. JB/T 6475-1992 Photoelectric Switch JB/T6475-1992 Standard Download Decompression Password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Photoelectric Switch
1 Subject Content and Scope of Application
JB/T6475—1992
This standard specifies the terminology, classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of photoelectric switches.
This standard applies to photoelectric switches used in industrial control circuits with an AC rated voltage not exceeding 220 (380) V, a frequency of 50 Hz, and a DC rated voltage not exceeding 60 V. bZxz.net
Note: The voltage values ​​in brackets are not recommended. 2 Reference standards
GB1525
GB4208
Rated voltage
Packaging storage and transportation pictorial symbols
Drawing drawings
Classification of enclosure protection levels
GB4588.1~4588.2 Technical conditions for printed boards GB/T13926.2 Electromagnetic compatibility of industrial process measurement and control devices Electrostatic discharge requirements Radio frequency electromagnetic field requirements
Electromagnetic compatibility of industrial process measurement and control devices GB/T13926.3
Electromagnetic compatibility of industrial process measurement and control devices GB/T13926.4
JB2759
JB3284
3 Glossary
General technical conditions for packaging of electromechanical products
Requirements for electrical fast transient pulse groups
Basic environmental conditions and test methods for transportation and storage of motors and electrical products 3.1 Photoelectric switch
According to the light emitted by the projector, the amount of light on the detection object increases or decreases, and the photoreceiver composed of photoelectric conversion elements is used to detect the presence and size of the object.
3.2 Reflection
The light emitted by the projector is reflected from the detection object to the photoreceiver, and the light on the photoreceiver is detected. 3.3 Through-beam
The light emitted by the projector is blocked by the detection object, and the light on the photoreceiver is detected. 3.4 Reflector type
The light emitted by the projector is reflected by the reflector and then left by the detection body to detect the light quantity on the light receiver. 3.5 Light-actuated type
The method in which the on-off output element is turned on and operated due to the increase of light quantity. 3.6 Dark-actuated type
The method in which the on-off output element is turned on and operated due to the decrease of light quantity. 3.7 Contact output type
Approved by the Ministry of Machinery and Electronics Industry on August 6, 1992 and implemented on January 1, 1993
JB/T6475-1992
The output method in which the relay contact is used as the on-off output element. 3.8 AC two-wire type
The contactless output method in which a single-phase AC power supply is used, thyristors are used as output elements, and the photoelectric switch and the load are connected in series. 3.9 DC three-wire type
Uses DC power supply, has two power lines and one output line, and connects the load to the output line and one power line. Non-contact output mode.
3.10 Rated working voltage of output terminal
The working voltage of the output terminal is related to the rated working current. 3.11 Rated working current of output terminal
The working current of the output terminal under specified conditions (rated working voltage, switching frequency and electrical life). 3.12 Rated detection distance
Reflective photoelectric switch, under normal working conditions, the distance between the detection surface and the standard detection body that can be detected. For the through-beam photoelectric switch, under normal working conditions and standard detection body, the distance between the projector and the light receiver that can be detected. For the reflector photoelectric switch, under normal working conditions and standard detection body, the distance between the detection surface and the reflector that can be detected. 3.13 Standard detection body
The shape, size and material of the standard detection body used to measure basic performance and durability are specified. 3.14 Detection body
The object detected by the photoelectric switch.
3.15 Leakage current
The current flowing through the output terminal when the on-off output element is not conducting. 3.16 Residual voltage
The voltage value of the voltage drop generated at the output terminal when the on-off output element is conducting. 3.17 On-off frequency
When the detection body is used for on-off output, the number of repetitions per second of the specified output can be obtained. 3.18 Ambient illumination
The brightness that can operate normally under normal working conditions and standard detection bodies. It is expressed by the illumination of the light-receiving surface. 3.19 The projector of the photoelectric switch
It is equipped with a light source such as an incandescent lamp or a light-emitting diode, has the function of emitting specified light, and includes optical system parts such as lenses. 3.20 The light receiver of the photoelectric switch
The photoelectric conversion element that detects the light emitted by the projector, including optical system parts such as lenses. 4 Classification
4.1 According to the detection method
4.1.1 Reflection type
4.1.2 Through-beam type
4.1.3 Reflector type
4.2 According to the action form
4.2.1 Light-acting type
4.2.2 Dark-acting type
4.3 According to the output form
4.3.1 Contact output type
4.3.2 AC two-wire type
4.3.3 DC three-wire type
4.4 According to action function
4.4.1 Basic type
4.4.2 Delay adjustment type
4.4.2.1 One-time action type
4.4.2.2 Delay conduction type
4.4.2.3 Delay disconnection type
4.5 Rated value
4.5.1 Rated detection distance
J B/T6475—1992
The rated detection distance of the photoelectric switch should be selected from the following values: 12, 3, 5, 10, 20, 30, 50, 100, 200, 300.500, 700mm1, 1.5, 2, 3, 5, 10, 20, 30, 50.100, 200300, 500m4.5.2 Rated insulation voltage
The rated insulation voltage of the photoelectric switch should be selected from the following values: Select from the following values: AC: 250V
DC: 60V
4.5.3 Rated voltage
The rated voltage of the photoelectric switch shall comply with the provisions of GB156, and shall be selected from the following effective values: AC: 36, 220V
DC: 12, 24V
4.5.4 Rated frequency
The rated frequency of the photoelectric switch when the rated voltage is AC is 50Hz. 4.5.5 Rated working voltage and rated working current of contact output terminal The rated working voltage and rated working current of contact output terminal of photoelectric switch shall be selected from the following values: AC rated working voltage: 36, 220V
DC rated working voltage: 12, 24, 48V AC or DC rated working current: 0.1, 0.2, 0.3, 0.5, 1.2, 3.5A 4.5.6 Rated working voltage and rated working current of non-contact output terminal The rated working voltage and rated working current of non-contact output terminal of photoelectric switch The current should be selected from the following values: AC rated working voltage: 36, 220V
DC rated working voltage: 12, 24V
AC or DC rated working current: 10, 20, 30, 50, 100, 200, 300, 500mA5 Technical requirements
5.1 Normal working conditions
5.1.1 Ambient air temperature
The upper limit of the ambient air temperature shall not exceed +40℃, the average value of 24h shall not exceed +35℃, and the lower limit shall generally not be lower than -5℃. Note: ① The lower limit of the ambient air temperature is the working condition of -10℃ or -25℃, which shall be stated to the manufacturer by the user when placing an order. ② For working conditions where the upper limit of the air temperature exceeds +40℃ or the lower limit is lower than -25℃, the user shall consult with the manufacturer. 5.1.2 Relative humidity
The relative humidity of the atmosphere shall not exceed 50% when the ambient air temperature is +40℃; higher relative humidity may be allowed at lower temperatures. The monthly average minimum temperature of the wettest month shall not exceed +25℃, and the monthly average maximum relative humidity of the month shall not exceed 90%. Special measures must be taken for occasional condensation due to temperature changes.
5.1.3 Altitude
The altitude of the installation site shall not exceed 2000m.
5.1.4 Installation conditions
JB/T6475—1992
The photoelectric switch shall be installed according to the instruction manual provided by the manufacturer. 5.1.5 Working power supply
The power supply will not affect the performance of other equipment during operation. It is a sine wave or a near-sine wave when in AC mode, and a small amount of pulsating components (such as a three-phase full-wave rectified power supply) is allowed when in DC mode. Voltage fluctuation is allowed to be within the range of 85% to 110% of the rated voltage. 5.2 Structural requirements
5.2.1 General requirements
Photoelectric switches should be manufactured according to the design drawings and technical documents approved by the prescribed procedures and meet the following requirements: a.
Resistors, capacitors, semiconductors and other components should be installed and wired correctly, firmly and without cold solder joints; the surface of the housing and other parts should be smooth and flat, without defects such as bubbles, burrs, cracks, etc.; the conductive parts fastened with screws and rivets should be fastened. Insulation layers that may cause failures during use should be tightened after removal: fasteners should have anti-loosening measures;
Metal parts should have anti-corrosion measures;
Optical parts should be easy to clean:
When the AC rated voltage exceeds 36V, the metal housing should be equipped with a grounding screw and should have obvious symbols; the projector and the receiver should be easy to distinguish.
Insulation distance
The insulation distance of the photoelectric switch should be divided into three categories: A, B, and C according to environmental conditions such as moisture and dust, protection requirements and the importance of the place of use. The electrical clearance and creepage distance should not be less than the provisions in Table 1. Table 1
Rated insulation voltage
Ui≤60
60
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