Which option correctly lists the two actions required to recover from a DCS Position Violation?

• A. Power cycle the controller; Recalibrate axis
• B. Ignore the warning; Resume jog
• C. Press shift and reset; Jog away from the limit
• D. Press pause; Return to home

Answer: (C)

When a DCS Position Violation happens, the system has detected an axis moving beyond its safe position, and motion is blocked to prevent damage or danger. Recovering from this fault safely requires two steps: first clear the alarm, then move the axis away from the limit to reestablish a safe operating region.

Pressing shift and reset clears the fault condition without rebooting the entire controller, allowing normal control to resume. After the alarm is cleared, you should jog the axis away from the limit. This confirms you’re back inside the allowed range and helps prevent an immediate reentry of the fault if the axis were to creep back toward the limit.

Other approaches don’t address the fault properly: ignoring the warning or resuming jog won’t clear the alarm and could lead to unsafe motion, while power cycling or recalibrating is more drastic than needed for this fault and isn’t the prescribed recovery sequence. Returning to home is unnecessary for this specific situation; moving away from the limit is the correct next step after clearing the alarm.