Dual Check Safety (DCS) monitors position information to control the robot speed and work envelope.

• A. Not Applicable
• B. Not Sure
• C. False
• D. True

Answer: (D)

Dual Check Safety relies on two independent position checks to supervise motion. By continuously tracking the actual position and comparing it to the expected position within a defined work envelope, the system can enforce speed limits and boundary constraints. If the robot approaches or exceeds the envelope or if a fault is detected in one channel, DCS reduces speed or stops the robot to maintain safe operation. Therefore, describing DCS as monitoring position information to control speed and the work envelope is accurate, since the function is to keep motion within safe boundaries using redundant checks.