Danfoss VLT HVAC Series User Manual

NOTE!
Set par.1-03
Torque Characteristics before tuning takes place.
22-30 No-Flow Power
Range: Function:
0.00 kW* [0.00 - 0.00 kW] Readout of calculated no-flow power at actual speed. If power drops to the display value, the ad-
justable frequency drive will consider the condition as a no-flow situation.
22-31 Power Correction Factor
Range: Function:
100 %* [1 - 400 %] Make corrections to the calculated power at par.22-30 No-Flow Power .
If No Flow is detected when it should not be detected, the setting should be decreased. However,
if No Flow is not detected when it should be detected, the setting should be increased to above
100%.
22-32 Low Speed [RPM]
Range: Function:
0 RPM* [0 - par. 22-36 RPM] To be used if par.0-02 Motor Speed Unit has been set for RPM (parameter not visible if Hz selected).
Set used speed to the 50% level.
This function is used for storing values needed to tune No-flow Detection.
22-33 Low Speed [Hz]
Range: Function:
0 Hz* [0.0 - par. 22-37 Hz] To be used if par.0-02 Motor Speed Unit has been set for Hz (parameter not visible if RPM selected).
Set used speed to the 50% level.
The function is used for storing values needed to tune No-flow Detection.
22-34 Low Speed Power [kW]
Range: Function:
0 kW* [0.00 - 0.00 kW] To be used if par.0-03 Regional Settings has been set for International (parameter not visible if
North America selected).
Set power consumption to 50% speed level.
This function is used for storing values needed to tune No-flow Detection.
22-35 Low Speed Power [HP]
Range: Function:
0 hp* [0.00 - 0.00 hp] To be used if par.0-03 Regional Settings has been set for North America (parameter not visible if
International selected).
Set power consumption to 50% speed level.
This function is used for storing values needed to tune No-flow Detection.
22-36 High Speed [RPM]
Range: Function:
0 RPM* [0 - par. 4-13 RPM] To be used if par.0-02 Motor Speed Unit has been set for RPM (parameter not visible if Hz selected).
Set used speed for the 85% level.
The function is used for storing values needed to tune No-flow Detection.
3 Parameter Description VLT
®
HVAC Drive Programming Guide
3-200 MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3

Danfoss VLT HVAC Series Specifications

General

Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Profibus, Ethernet
Cooling Method	Forced convection
Ambient Temperature	-10°C to +40°C
Enclosure Rating	IP20, IP21, IP55
Output Voltage	0 - 100% of supply voltage