Danfoss VLT AQUA Instruction Manual page 125

VLT AQUA High Power Instruction Manual
3-87 Check Valve Ramp End Speed [Hz]
Range:
0 [Hz]* [0 – Motor Speed Low Limit [Hz]]
3-88 Final Ramp Time
Range:
0 [s]* [0 – 60 [s]]
Function:
Set the speed in [Hz] below Motor Speed Low Limit where the Check Valve Ramp will no longer be
active.
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.
®
MG.20.P3.22 - VLT is a registered Danfoss trademark
5 How to program the adjustable frequency
drive
5
5-19