3.2.5 Control Structure in Flux with Motor Feedback
Control structure in Flux with motor feedback configuration (only available in AF-650 GP):
In the shown configuration, par. H-41
Motor Control Principle
is set to “Flux w motor feedb [3]” and par. H-40
Configuration Mode
is set to “Speed closed loop [1]”.
The motor control in this configuration relies on a feedback signal from an encoder mounted directly on the motor (set in par. H-42
Flux Motor Feedback
Source
).
Select “Speed closed loop [1]” in par. 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 par. group PI-0#.
Select “Torque [2]” in par. 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
(par. H-41
Motor Control Principle
) configuration. When this mode has been selected, the reference will use the Nm unit. It requires no torque
feedback, since the actual torque is calculated on the basis of the current measurement of the frequency converter.
Select “Process [3]” in par. H-40
Configuration Mode
to use the process PID control for closed loop control of e.g. speed or a process variable in the controlled
application.
3.2.6 Internal Current Control in Advanced Vector Control Mode
The frequency converter features an integral current limit control which is activated when the motor current, and thus the torque, is higher than the torque limits
set in par. F-40
Torque Limiter (Driving)
, par. F-41
Torque Limiter (Braking)
and par. F-43
Current Limit
.
When the frequency converter is at the current limit during motor operation or regenerative operation, the frequency converter will try to get below the preset
torque limits as quickly as possible without losing control of the motor.
AF-650 GP Design Guide
20
3
Summary of Contents for AF-650 GP Series
Page 5: ...AF 650 GP Design Guide 4 1...
Page 53: ...AF 650 GP Design Guide 52 4...
Page 97: ...Please note airflow directions 6 1 5 Mechanical Dimensions AF 650 GP Design Guide 96 6...
Page 98: ...Please note airflow directions AF 650 GP Design Guide 97 6...
Page 99: ...Please note airflow directions AF 650 GP Design Guide 98 6...
Page 100: ...Please note airflow directions AF 650 GP Design Guide 99 6...
Page 173: ...Max cable length 150 m AF 650 GP Design Guide 172 9...
Page 179: ...AF 650 GP Design Guide 178 9...