Danfoss vlt aqua User Manual

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

Danfoss vlt aqua Specifications

General

Supply Voltage	200-240V, 380-500V, 525-600V
Enclosure	IP20
Features	Energy optimization
Approvals	CE, UL, cUL
Input Voltage Range	200-240V, 380-500V, 525-600V
Output Voltage Range	0 to supply voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Short circuit, Ground fault
Communication Interfaces	PROFIBUS
Cooling Method	Air-cooled