About Frequency Converter Programming; Introduction; Programming Example - Danfoss FC 300 Operating Instructions Manual

About Frequency Converter P...

5 About Frequency Converter Programming

5.1 Introduction

The frequency converter is programmed for its application
functions using parameters. Parameters are accessed by
pressing either [Quick Menu] or [Main Menu] on the LCP.
(See 4 User Interface for details on using the LCP function
keys.) Parameters may also be accessed through a PC
using the MCT 10 Set-up Software (see 5.6.1 Remote
Programming with MCT 10 Set-up Software).
The quick menu is intended for initial start up (Q2-** Quick
Set Up). Data entered in a parameter can change the
options available in the parameters following that entry.
The main menu accesses all parameters and allows for
advanced frequency converter applications.

5.2 Programming Example

Here is an example for programming the frequency
converter for a common application in open loop using
the quick menu.
•
This procedure programs the frequency converter
to receive a 0-10 V DC analog control signal on
input terminal 53
•
The frequency converter will respond by
providing 6-60 Hz output to the motor propor-
tional to the input signal (0-10 V DC = 6-60 Hz)
Select the following parameters using the navigation keys
to scroll to the titles and press [OK] after each action.
1. 3-15 Reference Resource 1
14.7%
References
3-15 Reference Resource
[1]] Analog input 53
Illustration 5.1 3-15 Reference Resource 1
VLT ® AutomationDrive Operating
Instructions
0.00A 1(1)
5-1*
®
MG33AM02 - VLT is a registered Danfoss trademark
2. 3-02 Minimum Reference. Set minimum internal
frequency converter reference to 0 Hz. (This sets
the minimum frequency converter speed at 0 Hz.)
14.7%
Analog Reference
3-02 Minimum Reference
0.000 Hz
Illustration 5.2 3-02 Minimum Reference
3. 3-03 Maximum Reference. Set maximum internal
frequency converter reference to 60 Hz. (This sets
the maximum frequency converter speed at 60
Hz. Note that 50/60 Hz is a regional variation.)
14.7%
Analog Reference
3-03 Maximum Reference
50.000 Hz
Illustration 5.3 3-03 Maximum Reference
4. 6-10 Terminal 53 Low Voltage. Set minimum
external voltage reference on Terminal 53 at 0 V
(this sets the minimum input signal at 0 V).
14.7%
Analog Reference
6-10 Terminal 53 Low
Voltage
0.00 V
Illustration 5.4 6-10 Terminal 53 Low Voltage
0.00A 1(1)
Q3-21
5
0.00A 1(1)
Q3-21
0.00A 1(1)
Q3-21
35
5