AWS D16.2M:2021 pdf download

AWS D16.2M:2021 pdf download.Guide for Components of Robotic and Automatic Arc Welding Installations
1. General Requirements
1.1 Scope. This document applies to the design, integration, installation, and use of industrial welding robotic and automatic systems. This document is intended for the gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), plasma arc welding (PAW), and flux cored arc welding (FCAW) processes. Pertinent parts may address additional welding processes. Robotic and automatic arc welding systems consist of a manipulator, power source, arc welding torch and accessories, electrode feed system, wire delivery system, shielding gas delivery system, welding circuit, shielding and communication control, and grounding system. There may be other accessories that are outside the scope of this document, such as safety devices and monitoring, joint-tracking, and vision systems. A typical system is illustrated in Figure 1. 1.2 Units of Measure. This standard makes use of both the International System of Units (SI) and U.S. Customary Units. The latter are shown within brackets ([ ]) or in appropriate columns in tables and figures. The measurements may not be exact equivalents; therefore, each system must be used independently. 1.3 Safety. Safety issues and concerns are addressed in this standard, although health issues and concerns are beyond the scope of this standard. Safety and health information is available from the following sources: American Welding Society: (1) ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes (2) AWS Safety and Health Fact Sheets (3) Other safety and health information on the AWS website Material or Equipment Manufacturers: (1) Safety Data Sheets supplied by materials manufacturers (2) Operating Manuals supplied by equipment manufacturers Applicable Regulatory Agencies: Work performed in accordance with this standard may involve the use of materials that have been deemed hazardous, and may involve operations or equipment that may cause injury or death.
3. Terms and Definitions
AWS A3.0M/A3.0, Standard Welding Terms and Definitions, provides the basis for terms and definitions used herein. However, the following terms and definitions are included to accommodate usage specific to this document. actuator. A mechanism used to affect motion. (a) A power mechanism which converts electrical, hydraulic, or pneumatic energy to affect motion. (b) A mechanical mechanism within a control device (e.g., a rod which opens contacts). (c) A device (e.g., specialized key) which initiates a (un)locking sequence. ancillary equipment. A component added to an industrial robotic welding system to provide an extra function to support the welding process or its application (e.g., laser scanners, video cameras, torch cleaners, wire cutters, anti-spatter spray, wire straighteners). audible alarm. An electrical or mechanical signal, clearly discernable above environmental noise, indicating a condition requiring the operator’s attention. auxiliary equipment. A component integrated into an industrial robot system to provide a function additive to that of the primary robot (e.g., integrated servo positioner under teach pendant control).barrier. A physical means of separating persons from the hazard. common. A point of reference shared throughout a circuit where connected points in a circuit are electrically common or a common return path for a group of signals. continuous duty. The capability of a power source to operate 100% of the time without interruption and without exceed- ing the maximum temperature criteria of the insulation and components within the power source. In all cases, the required load should not exceed the weld power source rating for continuous duty. See section 9.3 (Also referred to as “100% Duty Cycle”). control device. Any piece of control hardware providing a means for human intervention in the control of a robot or robot system, such as an emergency-stop button, a start button, or a selector switch. control program. The inherent set of control instructions which defines the capabilities, actions and responses of the robot system. This program is usually not intended to be modified by the user. control station. Part of the robot system which contains one or more control devices intended to activate or deactivate functions of the system or parts of the system. The control station can be fixed in place (e.g., control panel), or mov- able (e.g., control pendant). dereeler. A system for conveying welding wire from the wire package (i.e., spools, payoff packs) of any size to the entrance of the wire feeder mechanism. drive power. The energy source or sources for the robot actuators. electrical shield. An electrical component that acts as a barrier to electromagnetic fields by redirecting the energy. electrode stick check. A signal generated to indicate if the electrode has fused to the workpiece. electrode touch. A signal generated by the welding power source to indicate that the electrode has contacted the work- piece.