What is a Direct Motion Command?

• A. A humidity analyzer that measures the physical and electrical changes that occurs in materials as they release and absorb moisture
• B. Controls the motion of a servo motor, overrides the program in order to run the motor manually
• C. A flow meter
• D. A thermostat

Answer: (B)

Direct Motion Command means sending explicit instructions to the servo drive to move the motor directly, bypassing the running program so the motor can be operated manually. This lets an operator jog or position the motor for setup, testing, or override without waiting for the automated sequence to execute. The other devices measure or regulate environmental or process variables (humidity, flow, temperature) and don’t issue direct motor motion commands, so they don’t fit this concept.