User Manual Instruction Manual

13-84 GV6000 AC Drive User Manual
Figure 13-27 shows the same mechanical gear train as Figure 13-26 Notch Filter Freq
(419)is set to 10.
13.33 Overspeed Limit
The Overspeed Limit is a user programmable value that allows operation at maximum
speed but also provides an “overspeed band” that will allow a speed regulator such as
encoder feedback or slip compensation to increase the output frequency above
maximum Speed in order to maintain maximum Motor Speed.
Figure 13-28 illustrates a typical Custom V/Hz profile. Minimum Speed determines the
lower speed reference limit during normal operation. Maximum Speed determines the
upper speed reference limit. The two “Speed” parameters only limit the speed
reference and not the output frequency.
The actual output at maximum speed reference is the sum of the speed reference plus
“speed adder” components from functions such as slip compensation, encoder
feedback or process trim.
Figure 13.27 – 10 Hz Notch