Danfoss VLT AutomationDrive FC 360 Programming Guide

Programming Guide | VLT® AutomationDrive FC 360
2. Check if the start function in parameter 1-70 Start Mode fits the application requirements.
3.2.2.3.1 Rotor Detection
This function is the recommended selection for applications where the motor starts from standstill, for example pumps or conveyors.
For some motors, a sound is heard when the drive performs the rotor detection. This sound does not harm the motor. Adjust the value
in parameter 1-46 Position Detection Gain for different motors. If the drive fails to start, or an overcurrent alarm occurs when the drive
starts, check if the rotor is blocked or not. If the rotor is not blocked, set parameter 1-70 Start Mode to [1] Parking and try again.
3.2.2.3.2 Parking
This function is the recommended option for applications where the motor is rotating at low speed, for example windmilling in fan
applications. Parameter 2-06 Parking Current and parameter 2-07 Parking Time are adjustable. Increase the factory setting of these
parameters for applications with high inertia.
Start the motor at nominal speed. If the application does not run well, check the VVC+ PM settings. The table below shows
recommendations in different applications.
Table 10: Recommendations in Different Applications
Application Settings
Low inertia applications I
Load
/I
Motor
<5
(1)
• Increase the value of parameter 1-17 Voltage filter time const.
by factor 5 to 10.
• Reduce the value of parameter 1-14 Damping Gain.
• Reduce the value (<100%) of parameter 1-66 Min. Current at
Low Speed.
Medium inertia applications 50>I
Load
/I
Motor
>5 Keep calculated values.
High inertia applications I
Load
/I
Motor
>50 Increase the values of parameter 1-14 Damping Gain, parameter
1-15 Low Speed Filter Time Const., and parameter 1-16 High
Speed Filter Time Const.
High load at low speed <30% (rated speed) Decrease parameter 1-17 Voltage filter time const. Decrease
parameter 1-66 Min. Current at Low Speed (>100% for longer
time can overheat the motor).
1) I
Load
=The inertia of load. I
Motor
=The inertia of motor.
If the motor starts oscillating at a certain speed, increase parameter 1-14 Damping Gain. Increase the value in small steps.
Adjust the starting torque in parameter 1-66 Min. Current at Low Speed. 100% provides nominal torque as starting torque.
3.2.3 Automatic Motor Adaptation (AMA)
3.2.3.1 Overview
It is highly recommended to run AMA because it measures the electrical characteristics of the motor to optimize compatibility between
the drive and the motor under VVC+ mode.
l The drive builds a mathematical model of the motor for regulating output motor current, thus enhancing motor performance.
l Some motors are unable to run the complete version of the test. In that case, select [2] Enable reduced AMA (not for PM).
l If warnings or alarms occur, see the chapter Warning/Alarm Messages.
l Run this procedure on a cold motor for best results.
Danfoss A/S © 2024.01 AU275649936274en-001401 / 130R0507 | 31

Danfoss VLT AutomationDrive FC 360 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 360
Category	DC Drives
Language	English