Parameter Navigation; Programming Example For An Open-Loop Application - Danfoss VLT FC 103 Operating

VLT® Refrigeration Drive FC 103
Operating Guide
Example
Parameter 0-03 Regional Settings

7.2.2 Parameter Navigation

Use the following LCP keys to navigate through the parameters.
• Press [▲] [▼] to scroll up or down.
• Press [◄] [►] to shift a space to the left or right of a decimal point while editing a decimal parameter value.
• Press [OK] to accept the change.
• Press [Cancel] to disregard the change and exit edit mode.
• Press [Back] twice to show the status view.
• Press [Main Menu] once to go back to the main menu.

7.2.3 Programming Example for an Open-loop Application

This procedure, which is used to configure a typical open-loop application, programs the drive to receive a 0–10 V DC analog control
signal on input terminal 53. The drive responds by providing 20–50 Hz output to the motor proportional to the input signal (0–10 V
DC=20–50 Hz). The wiring connections used to enable the external device set-up are shown in
Procedure
1. Press [Quick Menu].
2.
Select Q3 Function Setups and press [OK].
3. Select Parameter Data Set and press [OK].
4.
Select Q3-2 Open Loop Settings and press [OK].
5. Select Q3-21 Analog Reference and press [OK].
6.
Select parameter 3-02 Minimum Reference. Set the minimum internal drive reference to 0 Hz and press [OK].
7.
Select parameter 3-03 Maximum Reference. Set the maximum internal drive reference to 60 Hz and press [OK].
8.
Select parameter 6-10 Terminal 53 Low Voltage. Set the minimum external voltage reference on terminal 53 at 0 V and press
[OK].
9.
Select parameter 6-11 Terminal 53 High Voltage. Set maximum external voltage reference on terminal 53 at 10 V and press
[OK].
10.
Select parameter 6-14 Terminal 53 Low Ref./Feedb. Value. Set minimum speed reference on terminal 53 at 20 Hz and press
[OK].
11.
Select parameter 6-15 Terminal 53 High Ref./Feedb. Value. Set maximum speed reference on terminal 53 at 50 Hz and press
[OK].

With an external device providing a 0–10 V control signal connected to drive terminal 53, the system is now ready
for operation.
SET-UP STATUS
When the scroll bar on the right of the display is at the bottom, the procedure is complete.
Danfoss A/S © 2020.09
Description
Parameter
N O T I C E
Commissioning
Illustration 57.
AQ357954340588en-000201 / 130R0881 | 99