Danfoss vlt FC 102 Operating Guide

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1.
2.
3.
4.
5.
6.

Application
Setting
Reduce parameter 1-66 Min. Current at Low Speed (<100%).
High inertia applications 50>I
Load
/
I
Motor
>5
Keep calculated values.
High inertia applications I
Load
/I
Mo-
tor
>50
Increase parameter 1-14 Damping Gain, parameter 1-15 Low Speed Filter Time Const., and
parameter 1-16 High Speed Filter Time Const. (>100% for a prolonged time can overhet the
motor).
High load at low speed <30% (rated
speed)
Increase parameter 1-17 Voltage Filter Time Const.
Increase parameter 1-66 Min. Current at Low Speed (>100% for a prolonged time can over-
heat the motor).
If the motor starts oscillating at a certain speed, increase parameter 1-14 Damping Gain. Increase the value in small steps. Depending
on the motor, a good value for this parameter can be 10% or 100% higher than the default value.
Starting torque can be adjusted in parameter 1-66 Min. Current at Low Speed. 100% provides nominal toque as starting torque.
5.3.5 Automatic Energy Optimization (AEO)
N O T I C E
AEO is not relevant for permanent magnet motors.
Automatic energy optimization (AEO) is a procedure that minimizes voltage to the motor, reducing energy consumption, heat, and
noise.
To activate AEO, set parameter 1-03 Torque Characteristics to [2] Auto Energy Optim. CT or [3] Auto Energy Optim. VT.
5.3.6 Automatic Motor Adaptation (AMA)
N O T I C E
AMA is not relevant for permanent magnet motors.
Automatic motor adaptation (AMA) is a procedure that optimizes compatibility between the drive and the motor.
The drive builds a mathematical model of the motor for regulating output motor current. The procedure also tests the input
phase balance of electrical power. It compares the motor characteristics with the data entered in parameters 1-20 to 1-25.
The motor shaft does not turn and no harm is done to the motor while running AMA.
Some motors may be unable to run the complete version of the test. In that case, select [2] Enable reduced AMA.
If an output filter is connected to the motor, select [2] Enable reduced AMA.
If warnings or alarms occur, see
7.6 List of Warnings and Alarms.
Run this procedure on a cold motor for best results.
5.3.6.1 Running AMA
Enter the advanced motor data in parameter group 1-3* Adv. Motor Data.
Procedure
Press [Main Menu] to access parameters.
Scroll to parameter group 1-** Load and Motor and press [OK].
Scroll to parameter group 1-2* Motor Data and press [OK].
Scroll to parameter 1-29 Automatic Motor Adaptation (AMA) and press [OK].
Select [1] Enable complete AMA and press [OK].
Follow on-screen instructions.
The test runs automatically and indicates when it is complete.
AQ267037536117en-000101 / 130R0083 | 45Danfoss A/S © 2023.09
Commissioning
VLT HVAC Drive FC 102
Operating Guide

Danfoss vlt FC 102 Specifications

General

Brand	Danfoss
Model	vlt FC 102
Category	DC Drives
Language	English