Satisfaction of installation criteria. Satisfaction of occupational safety and health criteria. Maintenance and inspection activities. Safeguarding requirements vary for different stages of robot system development. The probability of occurrence of hazards can be dependent on factors such as numbers of people present, levels of experience, and types of robot application.
Nonroutine use is typically more hazardous than routine use.
Extended application engineering and setups involving multiple tools and robot system interfaces add to the probability of hazards. The stages of development for a new system can include testing, research, and design up through and including productive use. The risk assessment shall recognize the different situations and the safeguarding measures shall be designed accordingly. For example, frequent access to the restricted envelope may be anticipated. If safety depended on a system of fixed barriers, the probability that the barrier may not be replaced and that interlocks will be muted must be considered.