Parameters and firmware blocks
169
28.03
INTEGRATION TIME
(see above)
Defines the integration time of the speed controller. The integration time defines the rate at which the
controller output changes when the error value is constant and the proportional gain of the speed
controller is 1. The shorter the integration time, the faster the continuous error value is corrected. Too
short integration time makes the control unstable.
If parameter value is set to zero, the I-part of the controller is disabled.
Anti-windup stops the integrator if the controller output is limited. See
The figure below shows the speed controller output after an error step when the error remains
constant.
Note:
This parameter is automatically set by the speed controller autotune function. See parameter
.
0…600 s
Integration time for speed controller.
T
I
t
%
Gain = K
p
= 1
T
I
= Integration time > 0
T
D
= Derivation time = 0
e = Error value
Controller output
K
p
× e
K
p
× e
Summary of Contents for ACSM1 Series
Page 1: ...ABB motion control drives Firmware manual ACSM1 motion control program ...
Page 4: ......
Page 34: ...Drive programming using PC tools 34 ...
Page 86: ...Drive control and features 86 ...
Page 265: ...Parameters and firmware blocks 265 1 100 us 100 µs 2 1 ms 1 ms 3 50 ms 50 ms ...
Page 302: ...Parameter data 302 ...
Page 422: ...Application program template 422 ...
Page 430: ...Appendix A Fieldbus control 430 ...
Page 500: ...Appendix D Application examples 500 ...
Page 508: ...Appendix E Control chain and drive logic diagrams 508 ...
Page 510: ...3AFE68848270 REV H EN 2015 06 26 Contact us www abb com drives www abb com drivespartners ...