Danfoss VLT Midi Drive FC 280 Design Guide

Function Parameter
number
Setting
If the motor turns opposite of required direction:
1. Change motor direction in
parameter 4-10 Motor Speed Direction.
2. Turn o mains, and wait for DC link to
discharge.
3. Switch 2 of the motor phases.
Parameter 4-10
Motor Speed
Direction
Select correct motor shaft direction.
Set conguration mode. Parameter 1-00
Conguration
Mode
[3] Process.
3) Set reference conguration, that is the range for reference handling. Set scaling of analog input in parameter group 6-** Analog In/Out.
Set reference/feedback units.
Set minimum reference (10 °C (50 °F)).
Set maximum reference (80 °C (176 °F)).
If the set value is determined from a preset value
(array parameter), set other reference sources to [0]
No Function.
Parameter 3-01
Reference/
Feedback Unit
Parameter 3-02
Minimum
Reference
Parameter 3-03
Maximum
Reference
Parameter 3-10
Preset
Reference
[60] ° C Unit shown on display.
-5 °C (23 °F).
35 °C (95 °F).
[0] 35%.
Ref  = 
Par . 3 − 10
0
100
 ×  Par . 3 − 03  −  par . 3 − 02  = 24, 5°C
Parameter 3-14 Preset Relative Reference to parameter 3-18 Relative
Scaling Reference Resource [0] = No Function.
4) Adjust limits for the frequency converter:
Set ramp times to an appropriate value as 20 s. Parameter 3-41
Ramp 1 Ramp
Up Time
Parameter 3-42
Ramp 1 Ramp
Down Time
20 s
20 s
Set minimum speed limits.
Set motor speed maximum limit.
Set maximum output frequency.
Parameter 4-12
Motor Speed
Low Limit [Hz]
Parameter 4-14
Motor Speed
High Limit [Hz]
Parameter 4-19
Max Output
Frequency
10 Hz
50 Hz
60 Hz
Set parameter 6-19 Terminal 53 mode and parameter 6-29 Terminal 54 mode to voltage or current mode.
5) Scale analog inputs used for reference and feedback:
Product Overview Design Guide
MG07B102 Danfoss A/S © 03/2016 All rights reserved. 33
2 2

Danfoss VLT Midi Drive FC 280 Specifications

General

Brand	Danfoss
Model	VLT Midi Drive FC 280
Category	DC Drives
Language	English