Baldor VS1SD, Инструкция по установке и эксплуатации

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8-4 Customizing Your Application MN766
To illustrate the concept of offset, refer to the following waveform. When the feedback has stabilized, it is not equal to input
command. In this case, the difference between the input command and the feedback is the offset. Note that the integral gain
is set to zero.
Feedback
Input Command
(Oscilloscope set to:
vertical = 1 V/division
horizontal = 1.0 sec/division)
Gain Settings:
Proportional gain = 25
Integral gain = 0.00
Offset
The next waveform illustrates what happens when the proportional gain is increased from 25 to 100. An increase in the
proportional gain causes the controlled variable to respond more quickly as indicated by the feedback signal.
Feedback
Input Command
(Oscilloscope set to:
vertical = 1 V/division
horizontal = 1.0 sec/division
Process Gain Settings:
Proportional gain = 100
Integral gain = 0.00
Offset
The next waveform illustrates what happens to the system offset when we apply integral gain. With the addition of integral
gain (2.00 Hz), the system offset is reduced to zero.
Process Feedback
Setpoint Command
(Oscilloscope set to:
vertical = 1 V/division
horizontal = 1.0 sec/division)
Process Gain Settings:
Proportional gain = 100
Integral gain = 2.00