P4-01 Operating mode/motor controller
- 0: VFC speed control
- Vector speed control for induction motors with calculated rotor speed feedback control. Field-oriented control algorithms are used for motor speed control. As the calculated rotor speed is used to internally close the speed loop, this control mode effectively provides a simple closed-loop control system without a physical encoder. For optimal control, "auto-tune" (P4-02) should be carried out prior to first operation.
- 1: VFC torque control
- Instead of the motor speed, the motor torque is controlled directly. In this operating mode, the speed is not specified but changes depending on the load. The maximum speed is limited by P1-01. This operating mode is often used for winding applications where a constant torque is required to maintain cable tension. For optimal control, "auto-tune" (P4‑02) should be carried out prior to first operation.
- 2: V/f open-loop speed control
- With the operating mode V/f control, the output voltage and frequency are controlled proportionally in the same ratio. Nearly all asynchronous motors can be controlled in this way. If better performance is required with regard to motor control mode, torque stability and speed range, the VFC control mode should be used.
- Slip compensation
- If P1-10 ≠ 0 is set, the calculated slip speed is added to the output frequency.
- If P1-10 = 0 is set, the slip is not included in the calculation. This causes the motor to react very slightly to load changes and not have a tendency to vibrate. SEW-EURODRIVE recommends this motor control for fans, pumps, and applications with direct drive.
- 3: Synchronous motor speed control (PMVC)
- Speed control for synchronous motors. The same properties apply as for VFC speed control.
- 4: Synchronous motor torque control
- Torque control for synchronous motors. The same properties apply as for VFC torque control.
- 5: Synchronous motor position control
- Position control for synchronous motors. Speed and torque setpoints are provided via process data in Motion Protocol (P1-12 = 8). An encoder is required for this purpose.
- 6: LSPM speed control
- LSPM control is designed for asynchronous motors with synchronous characteristics such as motors of type DR..J with LSPM technology from SEW‑EURODRIVE.
- 7: Synchronous magnetic reluctance motor speed control (SYN-R)
- Speed control for synchronous reluctance motors.
- 8: Brushless DC motor speed control (BLDC)
- Speed control for brushless DC motors
INFORMATION
