If the deadman switch is completely gripped or is released, no robot motion is allowed.

• A. The robot motion is not affected
• B. The robot may move under supervision
• C. The robot motion is only slow
• D. No robot motion is allowed

Answer: (D)

The deadman switch is a safety interlock that requires deliberate operator input to allow motion. When the switch is either fully pressed or fully released, the safety logic interprets that as not providing the controlled input needed to jog or move the robot, so the system stops all motion. This design prevents accidental or unintended movement if the operator loses grip or applies the switch in an extreme way. Motion is only allowed when the operator is maintaining the proper, intentional input within the intended range. Therefore, no robot motion occurs in those extreme states.