Danfoss VLT Programming Guide

20-38 Air Density Factor [%]
Range: Function:
100 %* [50 - 150 %] Set the air density factor for conversion from pressure to flow in % relative to the air density at sea
level at 20 °C (100% ~ 1,2 kg/m
3
).
3.18.5 20-6* Sensorless
Parameters for Sensorless. See also par. 20-00 Feedback 1 Source , par. 18-50 Sensorless Readout [unit] , par. 16-26 Power Filtered [kW] and
par. 16-27
Power Filtered [hp] .
NB!
Sensorless unit and Sensorless Information requires set up by MCT10 with sensorless specific plug in.
20-60 Sensorless Unit
Option: Function:
Select the unit to be used with par. 18-50 Sensorless Readout [unit] .
[20] l/s
[21] l/min
[22] l/h
[23] m³/s
[24] m³/min
[25] m³/h
[70] mbar
[71] bar
[72] Pa
[73] kPa
[74] m WG
[75] mm Hg
[120] GPM
[121] gal/s
[122] gal/min
[123] gal/h
[124] CFM
[125] ft³/s
[126] ft³/min
[127] ft³/h
[170] psi
[171] lb/in²
[172] in WG
[173] ft WG
[174] in Hg
20-69 Sensorless Information
Range: Function:
0 N/A* [0 - 0 N/A]
3 Parameter Description VLT
®
HVAC Drive Programming Guide
184 MG.11.C9.02 - VLT
®
is a registered Danfoss trademark
3

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)