1、 Printed Copies are Uncontrolled Page 1 of 6 Standard Number: w-ES5 Issue Date: 20021210 Global Manufacturing Standards Rev: Cable Pull Emergency Stop Switches 1. GENERAL: 1.1 PURPOSE AND SCOPE To provide functional, performance, and installation requirements for Cable Operated Safety Switches (here
2、inafter switch) for industrial applications at Ford Motor Company (hereinafter the Company) operations located worldwide. Deviations from this Standard are permitted only upon written waiver by the requisitioning activity. 1.2 MANDATORY AND PREFERRED ITEMS Mandatory requirements of this Standard are
3、 characterized by the use of the word “shall“. Preferred items are characterized by the use of the word “should“. 1.3 DEFINITIONS 1.3.1 The normal operating condition of the switch is defined as “not-tripped“. In this condition, the normally open contacts are held closed and the normally closed cont
4、acts are held open. When the switch is “tripped“, these contacts shall change state simultaneously. 1.3.2 The terms: Cable, Rope, Pull Cord, and Tripwire are used interchangeably and are all understood to be a coated cable. This cable shall be a minimum of 3mm in diameter, 19-strand, aircraft type,
5、and corrosion resistant, steel cable with bright Red plastic coating. Maximum elongation shall not exceed 0.7mm/m.Printed Copies are Uncontrolled Page 2 of 6 Standard Number: w-ES5 Issue Date: 20021210 Global Manufacturing Standards Rev: 2. REFERENCE STANDARDS Whenever a specific Standard is referen
6、ced, it shall be the latest revision, unless otherwise specified. 2.1 Ford Motor Company Manufacturing Standard EX1 Supplemental Requirements to SAE HS-1738. 2.2 INDUSTRY STANDARDS: 2.2.1 UL 508, Industrial Control Equipment. 2.2.2 CSA C22.2-14-M91, Industrial Control Equipment. 2.2.3 BSI BS PD 5304
7、, Safe Use of Machinery. 2.2.4 SAE HS-1738, Electrical Standard for Industrial Machinery - Supplement to NFPA 79. 2.2.5 IEC 60204-1, Safety of Machinery, Electrical Equipment of Machines Part 1: General Requirements. 2.2.6 IEC 60068-2-6, Environmental Testing - Test Fc and Guidance: Vibration (Sinus
8、oidal). 2.2.7 IEC 60947-5-1, Low Voltage Switchgear and Controlgear for Control Circuit Devices and Switching Elements - Electromechanical Control Circuit Devices. 2.2.8 IEC EN 418, Safety of Machinery - Emergency Stop Equipment, Functional Aspects - Principles for Design. 2.2.9 IEC EN 50013, Low Vo
9、ltage Switchgear and Controlgear for Industrial use Terminal Marking and Distinctive Number for Particular Control Switches. 2.2.10 IEC EN 954-1, Safety of Machinery - Safety Related Parts of Control Systems - General Principles for Design. 2.2.11 DIN EN 616, Continuous Handling Equipment and System
10、s; Common Safety Requirements for Design, Manufacturing, Erection and Commissioning Stages. 2.2.12 OSHA 29-CFR-1910, Occupational Safety and Health Standards. 2.3 CONFORMANCE 2.3.1 All materials and components supplied to this Standard shall be equivalent in all respects to material upon which appro
11、val was originally granted. Any deviations from this Standard, Printed Copies are Uncontrolled Page 3 of 6 Standard Number: w-ES5 Issue Date: 20021210 Global Manufacturing Standards Rev: without written notice and subsequent review and re-approval by the Ford Global Manufacturing Standards - Electri
12、cal Technical Committee, will be sufficient cause for removal from the Ford Global Manufacturing Standards - Electrical Conforming Components List (E1-CCL). 2.3.2 All products submitted for evaluation shall be “off-the-shelf“ catalog types manufactured with normal production procedures and quality c
13、ontrol. Prototypes will not be considered. Suppliers shall submit an itemized Data Sheet, correspondingly numbered with this Standard, completely addressing their compliance with each provision. The Vice President of Engineering, or a higher officer of the Suppliers (Manufacturers) company shall sig
14、n this Data Sheet. Suppliers shall also submit copies of any and all test Agency certificates and associated letters and documentation, which cite the actual standards their products were tested to. Approvals shall be made based on conformance to this Standard as certified by the above Data Sheet, t
15、he required Agency approvals, as well as laboratory and performance tests and documented Shop Trials. All documentation is subject to the review of Ford Global Manufacturing Standards - Electrical Technical Committee. 2.4 All Cable Operated Safety Switches shall be Underwriters 508 Listed ( ), CSA C
16、22.2 Certified ( ), and CE Marked ( ) to ensure that their construction is in compliance with the appropriate UL, CSA, and EN Standards. Additionally, all switches shall be Tested and Certified by a European “Notified Body“ Test Agency, (i.e. BG or TUV). 3.0 FUNCTIONAL 3.1 TRIP REQUIREMENTS: 3.1.1 T
17、he switch shall trip when a broken or slack cable is detected in accordance with SAE HS-1738. 3.1.2 The switch shall trip whether the cable is pushed or pulled in any direction in accordance with OSHA 1910.216. 3.1.3 The switch shall require no more than 125 N of perpendicular force to trip in accor
18、dance with BS PD 5304. 3.1.4 The switch shall require no more than 300mm of deflection in any direction to trip in accordance with BS PD 5304. Printed Copies are Uncontrolled Page 4 of 6 Standard Number: w-ES5 Issue Date: 20021210 Global Manufacturing Standards Rev: 3.1.5 The switch shall not trip f
19、rom vibration up to a level of 10 Gs at a frequency of 10 to 300 Hz in accordance with IEC 60068-2-6. 3.2 RESET REQUIREMENTS: 3.2.1 Resetting the switch shall only be possible as the result of a Manual Action on the switch itself, in accordance with IEC EN 418, IEC 60204-1, and OSHA 1910.216. 3.2.2
20、The reset button or other reset means shall be blue in color, in accordance with IEC 60204-1 and SAE HS-1738. Further, the reset button shall be booted or otherwise arranged so that they cannot be wedged down or easily fastened down in such a manner as to defeat the manual reset requirement. 3.3 CON
21、TACT AND WIRING REQUIREMENTS: 3.3.1 Switches shall have a minimum of 2 positive break contacts and an auxiliary contact. The two positive break contacts shall be normally closed for use with a safety relay circuit per IEC EN 954-1. The third contact shall be normally open for monitoring purposes. Th
22、e positive break contacts shall be constructed and operate in accordance with IEC 60947-5-1 and shall be marked as such (an downward pointing arrow inside of a circle). 3.3.2 Switch contacts shall be mechanically latched in their alternate position for any trip and require a manual action to reset.
23、It shall not be possible to tease the switch contacts momentarily into changing state nor individually into changing state. 3.3.3 Switch contacts electrical characteristics shall be suitable for use with multiple switches wired to the Safety Relays listed in the E1-CCL. Printed Copies are Uncontroll
24、ed Page 5 of 6 Standard Number: w-ES5 Issue Date: 20021210 Global Manufacturing Standards Rev: 3.3.4 Switches shall be wired with a 10-pin Mini style connector, as per the diagram below. This wiring technique should be referred to as the “-FW“ (Ford Wiring) connector. 3.5 The switch terminal shall b
25、e identified by and conform to IEC EN 50013. 4.0 ENCLOSURES AND ACCESSORIES 4.1 The enclosure shall be IP67 or greater. 4.2 Switches should be available in right-hand, left-hand, and dual/twin head models. 4.3 Switch body covers shall use captive hardware. 4.4 One red pilot light shall be included o
26、n the switch to indicate the tripped condition. This pilot light shall be 24 VDC and should be a high visibility LED type. 5. INSTALLATION 5.1 The cable shall be accessible from any location that an emergency stop function is required. The switch and cable shall be mounted between 0.9 and 1.8 meters
27、 from the operating floor and be accessible for reset, in accordance with SAE HS-1738 and OSHA 1910.216. Printed Copies are Uncontrolled Page 6 of 6 Standard Number: w-ES5 Issue Date: 20021210 Global Manufacturing Standards Rev: 5.2 The switch shall be mounted at the far end of the automation, accor
28、ding to part flow, or the machine end farthest from the operators panel/console. 5.3 The switch cable shall have an accessible turnbuckle to adjust cable tension; a maximum of two 90-degree turns or 180 degrees total per switch in the cable; utilize closed eyelets and closed pulleys to support and d
29、irect the cable; and a maximum cable length of 50 meters. The cable and its installation shall conform to SAE HS-1738. The switch manufacturers end spring shall be installed in conformance to DIN EN 616. When the cable is mounted above 1.8 meters from the operating floor, red “T-handles“ are acceptable. The cable shall be installed, at a minimum, as per the diagram below.
