ABB ACS 300, Руководство пользователя

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ACS 300 User’s Manual 73
Chapter 7 - Drive Parameters
Some points of view must be taken in consideration when this
parameter is active:
• The Local Ref parameter is not displayed.
• The texts on the control panel display for constant frequencies
will be CR1, CR2 and CR3. CR = Constant Reference. The
unit is %. With these parameters you can give constant
reference values in remote mode.
• Joystick control does not operate. On the other hand PI
Control cannot be selected while Joystick control is active.
• Custom settings have no effect.
• The rotation direction cannot be changed.
• Critical frequency ranges are ignored.
PI-ITIME Defines the integral time of PI Controller. The setting range is 0.0
to 320.0 s. PI Controller operates as a P Controller when the
parameter value is 320.0 s.
PI-GAIN
Output frequency change
for a 10 % change in error Output frequency change
for a 50 % change in error
50 % 0.75 Hz 3.75 Hz
100 % 1.5 Hz 7.5 Hz
300 % 4.5 Hz 22.5 Hz