Which device is used to manually override the servo motor control to run the motor manually?

• A. Hygrometer
• B. Economizer
• C. DeviceNet
• D. Direct Motion Command

Answer: (D)

When you need to move a servo motor without following the automatic motion profile, the control system uses a direct motion command. This mode sends a direct velocity or position instruction straight to the servo drive, bypassing the usual PLC/CNC trajectory so an operator can jog or manually position the motor for setup, testing, or maintenance.

Hygrometer and economizer relate to climate control and aren’t involved in motor drive override. DeviceNet is a communication network used to connect devices, but it isn’t the mechanism that performs the manual override itself. The direct motion command is the function that enables manual movement of the motor.