Danfoss VLT HVAC Basic Drive FC 101 Programming Guide

3.14.3 20-6* Sensorless
Parameters for sensorless. See also parameter 16-26 Power
Filtered [kW], parameter 16-27 Power Filtered [hp],
parameter 18-50 Sensorless Readout [unit], and
parameter 20-00 Feedback 1 Source.
20-60 Sensorless Unit
Option: Function:
Select the unit to be used with
parameter 18-50 Sensorless Readout
[unit].
[0] None
[20] * l/s Expressionlimit
[23] m3/s
[24] m3/min
[25] m3/h
[71] bar
[73] kPa
[74] m Wg
[75] mm Hg
[120] GPM
[121] gal/s
[122] gal/min
[123] gal/h
[124] CFM
[125]
ft
3
/s
[126]
ft
3
/min
[170] psi
[171] lb/in2
[172] in WG
[173] ft WG
[174] in Hg
20-69 Sensorless Information
Array [8]
Range: Function:
0* [0 - 25 ] View information about the sensorless data.
3.14.4 20-7* PI Auto-tuning
Parameters for enabling PI auto-tuning.
20-70 Closed Loop Type
Option: Function:
Select the expected application
response.
[0] * Auto
[1] Fast Pressure
[2] Slow Pressure
[3] Fast Temperature
[4] Slow Temperature
20-71 PI Performance
Option: Function:
Select the relative response speed for the
application.
[0] * Normal
[1] Fast
20-72 PI Output Change
Range: Function:
0.10* [0.01 - 0.50 ] Set the magnitude of step change during
the auto-tuning sequence.
20-73 Minimum Feedback Level
Range: Function:
-4999.000* [-4999.000 - Expres-
sionlimit (4999.000)]
Set the minimum allowable
feedback value during the
auto-tuning sequence.
20-74 Maximum Feedback Level
Range: Function:
4999.000* [Expressionlimit
(-4999.000) -
4999.000]
Set the maximum allowable
feedback value during the
auto-tuning sequence.
20-79 PI Autotuning
Option: Function:
[0] * Disabled Select to disable PI auto-tuning.
[1] Enabled Select to enable PI auto-tuning.
Parameters
VLT
®
HVAC Basic Drive FC 101
86 Danfoss A/S © 04/2018 All rights reserved. MG18B502
33

Danfoss VLT HVAC Basic Drive FC 101 Specifications

General

Brand	Danfoss
Model	VLT HVAC Basic Drive FC 101
Category	DC Drives
Language	English