Control Structure In Flux With Motor Feedback - GE AF-650 GP Design And Installation Manual

Application Set-Up Examples

6.3.3 Control Structure in Flux with Motor Feedback

Illustration 6.7 Control Structure in Flux with Motor Feedback Configuration
6 6
See Active/Inactive Parameters in Different Drive Control Modes in the Programming Guide for an overview of which control
configuration is available, depending on selection of AC motor or PM non-salient motor. In the shown configuration,
parameter H-41 Motor Control Principle is set to [3] Flux w motor feedb and parameter H-40 Configuration Mode is set to [1]
Speed closed loop.
The motor control in this configuration relies on a feedback signal from an encoder or resolver mounted directly on the
motor (set in parameter H-42 Flux Motor Feedback Source).
Select [1] Speed closed loop in parameter H-40 Configuration Mode to use the resulting reference as an input for the Speed
PID control. The Speed PID control parameters are located in parameter group PI-0#.
Select [2] Torque in parameter H-40 Configuration Mode to use the resulting reference directly as a torque reference. Torque
control can only be selected in the Flux with motor feedback (parameter H-41 Motor Control Principle) configuration. When
this mode has been selected, the reference uses the Nm unit. It requires no torque feedback, since the actual torque is
calculated based on the current measurement of the frequency converter.
Select [3] Process in parameter H-40 Configuration Mode to use the process PID control for closed loop control of for example,
speed or a process variable in the controlled application.
56 DET-767c All rights reserved. MG35M402