54 Program features
Speed control mode
In speed control mode, the motor follows a speed reference given to the drive. This
mode can be used with either estimated or measured speed used as feedback.
Speed control mode is available in both local and external control locations. It is
supported in vector motor control only.
Torque control mode
In torque control mode, the motor torque follows a torque reference given to the drive.
Torque control mode is available in both local and external control locations. It is
supported in vector motor control only.
Frequency control mode
In frequency control mode, the motor follows the drive output frequency reference.
Frequency control is available in both local and external control location. It is
supported in scalar motor control only.
Special control modes
In addition to the above-mentioned operating modes, the following special operating
modes are available:
• Process PID control. For more information, see section Process PID control on
page 76.
• Emergency stop modes OFF1 and OFF3: Drive stops along the defined
deceleration ramp and drive modulation stops.
• Jogging mode: Drive starts and accelerates to the defined speed when the
jogging signal is activated. For more information, see section Jogging on page 65.
• Pre-magnetization: DC magnetization of the motor before start. For more
information, see section Pre-magnetization on page 72.
• DC hold: Locking the rotor at (near) zero speed in the middle of normal operation.
For more information, see section DC hold on page 72.
• Pre-heating (motor heating): Keeping the motor warm when the drive is stopped.
For more information, see section Pre-heating (Motor heating) on page 73.
Parameters and diagnostics
Parameters: group 19 Operation mode, 99.04 Motor control mode
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