Danfoss VLT AQUA Drive Series User Manual

1. Start/Stop via switch connected between terminals 12 (+24 V) and 18.
2. Pressure reference via a potentiometer (0-10 Bar, 0-10 V) connected
to terminals 50 (+10 V), 53 (input) and 55 (common).
3. Pressure feedback via transmitter (0-10 Bar, 4-20 mA) connected to
terminal 54. Switch S202 behind the Local Control Panel set to ON
(current input).
2.8.9 Programming Order
Function Par. no. Setting
1) Make sure the motor runs properly. Do the following:
Set the drive to control the motor based on drive output fre-
quency.
0-02 Hz [1]
Set the motor parameters using nameplate data. 1-2* As specified by motor name plate
Run Automatic Motor Adaptation. 1-29 Enable complete AMA [1] and then run the AMA function.
2) Check that the motor is running in the right direction.
Press the “Hand On” LCP key and the ^ key to make the
motor turn slowly. Check that the motor runs in the correct
direction.
If the motor runs in the wrong direction, remove power
temporarily and reverse two of the motor phases.
3) Make sure the frequency converter limits are set to safe values
Check that the ramp settings are within capabilities of the
drive and allowed application operating specifications.
3-41
3-42
60 sec.
60 sec.
Depends on motor/load size!
Also active in Hand mode.
Prohibit the motor from reversing (if necessary) 4-10 Clockwise [0]
Set acceptable limits for the motor speed. 4-12
4-14
4-19
10 Hz, Motor min speed
50 Hz, Motor max speed
50 Hz, Drive max output frequency
Switch from open loop to closed loop. 1-00 Closed Loop [3]
4) Configure the feedback to the PID controller.
Set up Analog Input 54 as a feedback input. 20-00 Analog input 54 [2] (default)
Select the appropriate reference/feedback unit. 20-12 Bar [71]
5) Configure the setpoint reference for the PID controller.
Set acceptable limits for the setpoint reference.
3-02
3-03
0 Bar
10 Bar
Set up Analog Input 53 as Reference 1 Source. 3-15 Analog input 53 [1] (default)
6) Scale the analog inputs used for setpoint reference and feedback.
Scale Analog Input 53 for the pressure range of the potenti-
ometer (0 - 10 Bar, 0 - 10 V).
6-10
6-11
6-14
6-15
0 V
10 V (default)
0 Bar
10 Bar
Scale Analog Input 54 for pressure sensor (0 - 10 Bar, 4 - 20
mA)
6-22
6-23
6-24
6-25
4 mA
20 mA (default)
0 Bar
10 Bar
7) Tune the PID controller parameters.
Adjust the drive’s Closed Loop Controller, if needed.
20-93
20-94
See Optimization of the PID Controller, below.
8) Finished!
Save the parameter setting to the LCP for safe keeping
0-50 All to LCP [1]
VLT
®
AQUA Drive Design Guide 2 Introduction to VLT AQUA Drive
MG.20.N5.02 - VLT
®
is a registered Danfoss trademark 25
2

Danfoss VLT AQUA Drive Series Specifications

General

Brand	Danfoss
Model	VLT AQUA Drive Series
Category	Media Converter
Language	English