Danfoss vlt AQUA Instruction Manual page 89

®
VLT AQUA Drive
Instruction Manual
3-88 Final Ramp Time
Range:
0 [s]* [0 – 60 [s]]
8.2.5 4-** Limits and Warnings
Parameter group for configuring limits and warnings.
4-11 Motor Speed Low Limit [RPM]
Range:
0 RPM* [0 - par. 4-13 RPM]
4-13 Motor Speed High Limit [RPM]
Range:
1500. RPM* [par. 4-11 - 60000. RPM]
NOTE!
The output frequency value of the adjustable frequency drive must not exceed a value higher than 1/10 of the switching frequency.
NOTE!
Any changes in par.4-13
Motor Speed High Limit [RPM]
in par.4-13
Function:
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.
Function:
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
Function:
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
Motor Speed Low Limit [RPM]
par.4-11
Motor Speed Low Limit [Hz]
par. 4-12
menu, and depending on default settings dependant on global location.
Motor Speed High Limit [RPM]
will reset the value in par. 4-53
.
®
MG.20.M5.22 - VLT is a registered Danfoss trademark
8 How to program the adjustable frequency
Motor Speed High Limit [RPM]
.
Motor Speed Low Limit [RPM]
. Only par.4-11
will be displayed, depending on other parameters in the main
Warning Speed High
drive
8
or
to the same value as set
8-19