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Parameters and firmware blocks
164
Value pointer: Group and index
26.05
SPEED STEP
(see above)
Defines an additional speed step given to the input of the speed controller (added to the speed error
value).
-30000…30000 rpm
Speed step.
26.06
SPD ERR FTIME
(see above)
Defines the time constant of the speed error low pass filter.
If the used speed reference changes rapidly (servo application), the possible interferences in the
speed measurement can be filtered with the speed error filter. Reducing the ripple with filter may
cause speed controller tuning problems. A long filter time constant and fast acceleration time
contradict one another. A very long filter time results in unstable control.
See also parameter
0…1000 ms
Time constant for speed error low pass filter. 0 ms = filtering disabled.
26.07
SPEED WINDOW
(see above)
Defines the absolute value for the motor speed window supervision, ie, the absolute value for the
difference between the actual speed and the unramped speed reference (
). When the motor speed is within the limits defined by this parameter, signal
bit 8 (AT_SETPOINT) value is 1. If the motor speed is not within the defined limits, bit 8 value
is 0.
0…30000 rpm
Absolute value for motor speed window supervision.
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 ...