GB/T 16754-2021Safety of machinery - Emergency stop function - Principles for design (English PDF)

Foreword

This document is drafted in accordance with GB/T 1.1-2020 "Directives for

standardization - Part 1.Rules for the structure and drafting of standardizing

documents".

This document replaces GB/T 16754-2008 "Safety of machinery - Emergency

stop - Principles for design". Compared with GB/T 16754-2008, in addition to

structural adjustments and editorial changes, the main technical changes are

as follows.

- Add the terms "emergency stop equipment", "span of control of emergency

stop device(s)", "protective shroud", "emergency situation" and "operator

control station" and their definitions (see 3.2, 3.6, 3.7, 3.8 and 3.9);

- Clarify and refine the safety requirements of the emergency stop function;

add the requirements for the span of control of emergency stop device (see

4.1; 4.1 of the 2008 edition);

- Modify the safety requirements of emergency stop device (see 4.3; 4.4 of

the 2008 edition);

- Add requirements for prevention of unintended actuation of an emergency

stop device (see 4.5);

- Add requirements for portable operator control stations (see 4.6).

This document, using translation method, is identical to ISO 13850.2015

"Safety of machinery - Emergency stop function - Principles for design".

China's documents which have a consistent correspondence with the

international documents normatively referenced in this document are as follows.

- GB/T 3766-2015 Hydraulic fluid power - General rules and safety

requirements for systems and their components (ISO 4413.2010, MOD);

- GB/T 5226.1-2019 Electrical safety of machinery - Electrical equipment of

machines - Part 1.General requirements (IEC 60204-1.2016, IDT);

- GB/T 7932-2017 Pneumatic fluid power - General rules and safety

requirements for systems and their components (ISO 4414.2010, IDT);

- GB/T 14048.14-2019 Low-voltage switchgear and controlgear - Part 5-5.

Control circuit devices and switching elements - Electrical emergency stop

device with mechanical latching function (IEC 60947-5-5.2016, IDT);

- GB/T 16855.1-2018 Safety of machinery - Safety-related parts of control

systems - Part 1.General principles for design (ISO 13849-1.2015, IDT);

- GB 28526-2012 Electrical safety of machinery - Functional safety of safety-

related electrical, electronic and programmable electronic control systems

(IEC 62061.2005, IDT).

Attention is drawn to the possibility that some of the elements of this document

may be the subject of patent rights. The issuing authority of this document shall

not be held responsible for identifying any or all such patent rights.

This document was proposed by and shall be under the jurisdiction of National

Technical Committee 208 on Safety of Machinery of Standardization

Administration of China (SAC/TC 208).

Drafting organizations of this document. Pilz Electronics (Changzhou) Co., Ltd.,

Shanghai Chenzhu Instrument Co., Ltd., Anhui Tianxu Technology Co., Ltd.,

Fujian Minxuan Technology Co., Ltd., Xiamen LiDi Plastic Co., Ltd., Jiusi

Testing Technology (Guangdong) Co., Ltd., Zhangzhou Kehui Special Purpose

Vehicle Manufacturing Co., Ltd., Fujian Bakingdom Food Co., Ltd., Sichuan

Shuxing Youchuang Safety Technology Co., Ltd., Guangdong Limai Testing

Technology Co., Ltd., Nanjing Forestry University, Foshan Shunde Wanyi

Household Products Co., Ltd., Nanjing University of Science & Technology,

China Productivity Center for Machinery, Schmersal Industrial Switch

Manufacturing (Shanghai) Co., Ltd., Zhejiang Aopeng Industry and Trading Co.,

Ltd., Suzhou Angao Intelligent Security Technology Co., Ltd., Nan'an Zhongji

Standardization Research Institute Co., Ltd., Idec Electric Trading (Shanghai)

Co., Ltd., Shenzhen DS Visual Technology Co., Ltd., Xi'an Libeian Intelligent

Technology Co., Ltd., Quanzhou Association for Standardization, Guangdong

Chengxin Technology Co., Ltd., China Academy of Machinery Science and

Technology Group Co., Ltd., Zhejiang Dingye Machinery Co., Ltd., Shaanxi

Shuoen Big Data Technology Co., Ltd., Shenzhen Everwin Precision

Technology Co, Ltd., Chuzhou University, Yiwu Jinglong Mould Co., Ltd.,

Guangdong Mingkai Technology Co., Ltd., China Certification Centre For

Automotive Products Co., Ltd., Shanghai Hanbell Precise Machinery Co., Ltd.,

Dongguan Association of Standards and Industry.

Main drafters of this document. Fu Xiang, He Chunyan, Zhang Song, Ye

Guohua, Ju Likai, Huang Zhijiong, Zhou Ting, Qin Peijun, Zhang Dejun, Wu

Xiangliang, Wu Jianwei, Li Qin, Zhu Bin, Luo Weiqiang, Xue Congfu, Yang

Changhai, Huang Qiongfang, Song Xiaoning, Jiang Tao, Yang Yi, Ju Ronghua,

Wang Feng, Cao Zhiyong, Nie Yongjiang, He Jun, Quan Ningwu, Chen Miaoren,

Wang Lei, Dong Kaibo, Li Zhong, Liu Zhiyong, Wang Pei, Li Liyan, Zheng

Huating, Shen Dehong, Cheng Hongbing, Yu Jianghua, Chen Zhuoxian, Yuan

Jun, Huo Zhifeng, Fu Huiqing, Zuo Xiaofei, Ni Liaoyong, Huang Jianwei, Ye

Guanlin, Nan Shaowei, Liu Qi, Li Taicong, Gong Lihua, Zhang Xiaofei.

The previous releases of this document and the documents it replaces were as

follows.

- It was first issued in 1997 as GB 16754-1997;

- It was revised for the first time in 2008 and issued as GB 16754-2008;

converted to GB/T 16754-2008 in 2017;

- This is the second revision.

1 Scope

This document specifies functional requirements and design principles for the

emergency stop function on machinery, independent of the type of energy used.

This document apply to all machines, with exception to.

2 Normative references

The contents of the following documents, through normative references in this

text, constitute indispensable provisions of this document. Among them, for

dated references, only the edition corresponding to that date applies to this

document. For undated references, the latest edition (including all amendments)

applies to this document.

GB/T 15706-2012 Safety of machinery - General principles for design - Risk

assessment and risk reduction (ISO 12100.2010, IDT)

ISO 4413 Hydraulic fluid power - General rules and safety requirements for

systems and their components

3 Terms and definitions

For the purposes of this document, the terms and definitions given in GB/T

15706-2012 and the following apply.

Assembly of one or more control actuators fixed on the same panel or located

in the same enclosure.

4 Safety requirements

The span of control of each emergency stop device shall cover the whole

machine. As an exception, a single span of control may not be appropriate

when, for example, stopping all linked machinery could create additional

hazards or unnecessarily affect production.

Restoration of power after an interruption or failure of parts of a cableless

control system shall not result in a reset of an emergency stop condition

previously initiated by a cableless emergency stop device.

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