Pid Control; Speed Pid Control - GE AF-650 GP Design And Installation Manual

Application Set-Up Examples

6.5 PID Control

6.5.1 Speed PID Control

Parameter H-40 Configu-
ration Mode
[0] Speed open loop
[1] Speed closed loop
[2] Torque
[3] Process
Table 6.15 Control Configurations where the Speed Control is active
"N.A." means that the specific mode is not available at all. "Not Active" means that the specific mode is available but the Speed Control is not
active in that mode.
NOTICE
The Speed Control PID works under the default
6 6
parameter setting, but tuning the parameters is highly
recommended to optimize the motor control
performance. The two Flux motor control principles are
particularly dependent on proper tuning to yield their
full potential.
Example of how to program the speed control
In this case, the Speed PID Control is used to maintain a
constant motor speed regardless of the changing load on
the motor. The required motor speed is set via a potenti-
ometer connected to terminal 53. The speed range is 0 to
1500 RPM corresponding to 0–10 0 V to 10 V over the
potentiometer. Starting and stopping is controlled by a
switch connected to terminal 18. The Speed PID monitors
the actual RPM of the motor by using a 24 V (HTL)
incremental encoder as feedback. The feedback sensor is
an encoder (1024 pulses per revolution) connected to
terminals 32 and 33.
62
Parameter H-41 Motor Control Principle
U/f Advanced Vector Control Flux Sensorless
Not Active Not Active
N.A. ACTIVE
N.A. N.A.
Not Active
DET-767c All rights reserved.
ACTIVE
N.A.
N.A.
ACTIVE
Illustration 6.17 Example - Speed Control Connections
Flux w/ enc. feedb
N.A.
ACTIVE
Not Active
ACTIVE
MG35M402