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3-88 Final Ramp Time
Range:
Function:
0 [s]*
[0 – 60 [s]]
Enter the Final Ramp Time to be used when ramping down from Motor Speed Low Limit, par. 4-11
or 4-12, to zero speed.
Submersible deep well pumps can be damaged by running below minimum speed. A fast ramp time
below minimum pump speed is recommended. This parameter may be applied as a fast ramp rate
from Motor Speed Low Limit to zero speed.
6.3.5 4-** Limits and Warnings
Parameter group for configuring limits and warnings.
4-11 Motor Speed Low Limit [RPM]
Range:
Function:
Application
dependent*
[Application dependant]
Enter the minimum limit for motor speed. The Motor Speed Low Limit can be set to correspond to
the manufacturer’s recommended minimum motor speed. The Motor Speed Low Limit must not
exceed the setting in par. 4-13
4-13 Motor Speed High Limit [RPM]
Range:
Function:
Application
dependent*
[Application dependant]
Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond to
the manufacturer’s maximum rated motor. The Motor Speed High Limit must exceed the setting in
par. 4-11
par. 4-12
Motor Speed Low Limit [Hz]
will be displayed, depending on other parameters in the main
menu, and depending on default settings dependant on global location.
NOTE!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par. 14-01
Switching Frequency
).
NOTE!
Any changes in par. 4-13
will reset the value in par. 4-53
Warning Speed High
to the same value as set
.
6 How to Program the Low Harmonic Drive
VLT AQUA Low Harmonic Drive Instruction
Manual
6-20
MG.20.T1.22 - VLT
®
is a registered Danfoss trademark
6