226 Actual signals and parameters
Group 40: Process PID set 1
This group defines a set of parameters used with the Process PID (PID1) controller.
Typically only parameters in this group are needed.
PID controller – basic set-up
In PID control mode, the drive compares a reference signal (setpoint) to an actual
signal (feedback), and automatically adjusts the speed of the drive to match the two
signals. The difference between the two signals is the error value.
Typically PID control mode is used, when the speed of a fan or pump needs to be
controlled based on pressure, flow or temperature. In most cases – when there is
only 1 transducer signal wired to the drive – only parameter group 40 is needed.
3716
LOAD FREQ 5
0 … 500 Hz 500 Hz
Defines the frequency value of fifth load curve definition point.
3717
LOAD TORQ LOW 5
0 … 600% 30%
Defines the torque value of the fifth underload curve definition point.
Must be smaller
than
3718
LOAD TORQ HIGH 5
.
3718
LOAD TORQ HIGH 5
0 … 600% 300%
Defines the torque value of the fifth overload curve definition point.
Group 37: User load curve
Code Description Range Resolution Default S
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