1、 Reference numberISO 20401:2005(E)ISO 2005INTERNATIONAL STANDARD ISO20401First edition2005-01-15Pneumatic fluid power systems Directional control valves Specification of pin assignment for electrical round connectors of diameters 8 mm and 12 mm Transmissions pneumatiques Distributeurs de commande di
2、rectionnels Spcification de laffectation des broches des connecteurs lectriques ronds de diamtres 8 mm et 12 mm ISO 20401:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless
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7、ed in Switzerland ii ISO 2005 All rights reservedISO 20401:2005(E) ISO 2005 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally c
8、arried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the wor
9、k. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare Inter
10、national Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of th
11、e elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 20401 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 5, Control products and components. ISO 20401:2005(E) iv IS
12、O 2005 All rights reservedIntroduction In pneumatic fluid power systems, power is transmitted and controlled through a fluid under pressure within an enclosed circuit. Typical components found in such systems are pneumatic controls. These devices are used to regulate the function of a component or s
13、ystem. Some control components found in pneumatic fluid power systems are electrically actuated. For small control components with electrical control mechanisms, plug connectors of round type with diameters of 8 mm and 12 mm are used. For a unified actuation of the control component in relationship
14、to the electrical power, a standardized pin assignment is required. INTERNATIONAL STANDARD ISO 20401:2005(E) ISO 2005 All rights reserved 1Pneumatic fluid power systems Directional control valves Specification of pin assignment for electrical round connectors of diameters 8 mm and 12 mm 1 Scope This
15、 International Standard specifies the pin assignment for pneumatic directional control valves when used together with electrical connectors according to IEC 60947-5-2. This definition is valid for connectors as shown in Figures D.2 and D.4 of IEC 60947-5-2:2004, which are shown in a simplified versi
16、on below: Figure D.2: 12-mm diameter, five-pin connector (pin 5, not shown, is unassigned), male face view Key 1 pin 1 2 pin 2 3 pin 3 4 pin 4 Figure D.4: 8-mm diameter, four-pin connector, male face view Key 1 pin 1 2 pin 2 3 pin 3 4 pin 4 ISO 20401:2005(E) 2 ISO 2005 All rights reserved2 Normative
17、 references The following referenced documents are indispensable for the application 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. ISO 1219-1, Fluid power systems and c
18、omponents Graphic symbols and circuit diagrams Part 1: Graphic symbols for conventional use and data-processing applications ISO 5598, Fluid power systems and components Vocabulary ISO 11727, Pneumatic fluid power Identification of ports and control mechanisms of control valves and other components
19、IEC 60947-5-2:2004, Low-voltage switchgear and controlgear Part 5-2: Control circuit devices and switching elements Proximity switches 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. 4 Symbols and abbreviated terms Graphic symbols used in
20、 Figures 1, 2 and 3 are in accordance with ISO 1219-1. 5 Electrical contacts (pin allocation) 5.1 Identification For identification of ports and control mechanisms of pneumatic directional control valves, ISO 11727 shall be used. 5.2 Pin allocation for valves with a single solenoid The pin allocatio
21、n for valves with a single solenoid is shown in Figure 1. Pin 1: not used Pin 2: not used Pin 3: 0 V for solenoid Pin 4: UBfor solenoid Figure 1 Pin allocation for valves with a single solenoid ISO 20401:2005(E) ISO 2005 All rights reserved 35.3 Pin allocation for valves with double solenoids and on
22、e connector The pin allocation for valves with double solenoids and one connector is shown in Figure 2. Pin 1: not used Pin 2: UBfor solenoid 12 Pin 3: 0 V for solenoids Pin 4: UBfor solenoid 14 Figure 2 Pin allocation for valves with double solenoids and one connector 5.4 Pin allocation for valves
23、with double solenoids and two connectors The pin allocation for valves with double solenoids and two connectors is shown in Figure 3. For both connectors: Pin 1: not used Pin 2: not used Pin 3: 0 V for solenoid Pin 4: UBfor solenoid Figure 3 Pin allocation for valves with double solenoids and two co
24、nnectors ISO 20401:2005(E) 4 ISO 2005 All rights reservedBibliography 1 ISO 5599-1:2001, Pneumatic fluid power Five-port directional control valves Part 1: Mounting interface surfaces without electrical connector 2 ISO 15407-1:2000, Pneumatic fluid power Five-port directional control valves, sizes 18 mm and 26 mm Part 1: Mounting interface surfaces without electrical connector ISO 20401:2005(E) ICS 23.100.50 Price based on 4 pages ISO 2005 All rights reserved
