ABB ACS580 Series, Руководство по прошивке

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Program features 99
working envelope for the motor so that excursions outside the envelope can be
supervised, timed and detected.
An overload warning and/or fault can be set to occur if the monitored signal stays
continuously over the overload curve for a defined time. An underload warning and/or
fault can be set to occur if the monitored signal stays continuously under the
underload for a defined time.
Overload can be for example used to monitor for a saw blade hitting a knot or fan
load profiles becoming too high.
Underload can be for example used to monitor for load dropping and breaking of
conveyer belts or fan belts.
Settings
Parameter group 37 User load curve (page 275 ).

Control macros
Control macros are predefined parameter edits and I/O configurations. See chapter
Control macros (page 59 ).

Process PID control
There are two built-in process PID controllers (PID set 1 and PID set 2) in the drive.
The controller can be used to control process variables such as pressure or flow in
the pipe or fluid level in the container.
Motor torque / Nominal torque
1
3
2
1 = Overload curve (five points)
2
= Nominal process load curve
3 = Underload curve (five points)
1.2
1.0
0.8
0.6
0.2
0.4
0.0
-0.2
0 10 20 30 40 50
Output frequency (Hz)
ACS580 FW.book Page 99 Wednesday, September 21, 2016 9:48 PM