ABB ACH550-01 User Manual page 237

Code Description
2302 INTEGRATION TIME
Sets the integration time for the speed controller.
• The integration time defines the rate at which the controller output
changes for a constant error value.
• Shorter integration times correct continuous errors faster.
• Control becomes unstable if the integration time is too short.
• The figure shows the speed controller output after an error step (error
remains constant).
Note: You can use parameter 2305
the integration time.
K = Gain = 1
p
T = Integration time > 0
I
T = Derivation time = 0
D
%
K · e
p
K · e
p
232
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ACH550-01 User's Manual
AUTOTUNE RUN
Controller output
T
I
Parameter listing and descriptions
Range
0...600.00 s
to automatically set
e = Error value
t