FANUC Safety Standards & Compliance in Robotics 3

Question 1

In the context of FANUC robot safety, what does 'T1 mode' limit regarding maximum TCP speed?

Accepted Answer

250 mm/s

Answer

T1 (teach mode 1) limits maximum TCP speed to 250 mm/s regardless of programmed speed, ensuring slow motion during manual operation inside the safeguarded space.

Question 2

According to RIA TR R15.306, a task-based risk assessment for robotic systems must evaluate severity of harm based on which factors?

Accepted Answer

Severity of injury, probability of occurrence, and possibility of avoiding the hazard

Answer

Risk assessment per RIA TR R15.306 evaluates three factors: severity of potential injury, probability (likelihood) of occurrence, and the possibility of avoiding or limiting the harm.

Question 3

A safety light curtain is classified as which type of safeguard under ANSI/RIA R15.06?

Accepted Answer

Presence-sensing device (PSD)

Answer

Light curtains are electro-sensitive protective equipment (ESPE) classified as presence-sensing devices (PSDs) that detect intrusion into the safeguarded space.

Question 4

Which FANUC safety function uses a camera or zone sensor to slow the robot as a human approaches, without requiring a full stop?

Accepted Answer

Collaborative Robot Safety (CRS) with PSD input

Answer

Collaborative Robot Safety (CRS) with presence-sensing device input implements speed and separation monitoring, reducing robot speed proportionally as the human enters inner zones.

Question 5

What does IEC 62061 SIL 2 certification for a safety function indicate about the probability of dangerous failure on demand (PFDavg)?

Accepted Answer

Between 10⁻⁵ and 10⁻⁴

Answer

SIL 2 per IEC 62061 corresponds to a PFDavg range of ≥10⁻⁵ to <10⁻⁴, representing a high degree of reliability for safety-related control functions.

(FANUC) Fuji Automatic Numerical Control Robotics Certification Practice Test

(FANUC) Fuji Automatic Numerical Control Robotics Certification Practice Test

FANUC Safety Standards & Compliance in Robotics 3