Safety-related Functions and Interfaces

Description

Universal Robots robots are equipped with a range of built-in safety functions as well as safety I/O, digital and analog control signals to or from the electrical interface, to connect to other machines and additional protective devices. Each safety function and I/O is constructed according to EN ISO13849-1 with Performance Level d (PLd) using a category 3 architecture.

The use of safety configuration parameters different from those determined as necessary for risk reduction, can result in hazards that are not reasonably eliminated, or risks that are not sufficiently reduced.

  • Ensure tools and grippers are connected correctly to avoid hazards due to interruption of power.

Programmer and/or wiring errors can cause the voltage to change from 12V to 24V leading to fire damage to equipment.

  • Verify the use of 12V and proceed with caution.

  • The use and configuration of safety functions and interfaces must follow the risk assessment procedures for each robot application.

  • The stopping time should be taken into account as part of the application risk assessment

  • If the robot detects a fault or violation in the safety system (e.g. if one of the wires in the Emergency Stop circuit is cut or a safety limit is exceeded), then a Stop Category 0 is initiated.

The end effector is not protected by the UR safety system. The functioning of the end effector and/or connection cable is not monitored