Danfoss VLT HVAC Drive FC 102 Design Manual page 44

Introduction
Function
2 2
1) Make sure the motor runs properly. Do the following:
Set the motor parameters using nameplate data.
Run Automatic Motor Adaptation (AMA).
2) Check that the motor is running in the right direction.
Run motor rotation check.
3) Make sure the adjustable frequency drive limits are set to safe values
Check that the ramp settings are within capabilities of
the adjustable frequency drive and allowed application
operating specifications.
Prohibit the motor from reversing (if necessary)
Set acceptable limits for the motor speed.
Switch from open-loop to closed-loop.
4) Configure the feedback to the PID controller.
Select the appropriate reference/feedback unit.
5) Configure the setpoint reference for the PID controller.
Set acceptable limits for the setpoint reference.
Choose current or voltage by switches S201 / S202
6) Scale the analog inputs used for setpoint reference and feedback.
Scale analog input 53 for the pressure range of the
potentiometer (0–10 Bar, 0–10 V).
Scale analog input 54 for pressure sensor (0–10 Bar, 4–
20 mA)
7) Tune the PID controller parameters.
Adjust the closed-loop controller, if needed.
8) Finished
Save the parameter setting to the LCP
Table 2.9 Programming Order
42
Design Guide
Parameter no.
1-2*
1-29
1-28
3-41
3-42
4-10
4-12
4-14
4-19
1-00
20-12
20-13
20-14
6-10
6-11
6-14
6-15
6-22
6-23
6-24
6-25
20-93
20-94
0-50
Danfoss A/S © Rev. 2014-01-13 All rights reserved.
Setting
As specified by motor nameplate
[1] Enable complete AMAand then run the AMA
function.
If the motor runs in the wrong direction, remove
power temporarily and reverse two of the motor
phases.
60 s
60 s
Depends on motor/load size!
Also active in hand mode.
[0] Clockwise
10 Hz, Motor min speed
50 Hz, Motor max speed
50 Hz, Drive max output frequency
[3] Closed-loop
[71] Bar
0 Bar
10 Bar
0 V
10 V (default)
0 Bar
10 Bar
4 mA
20 mA (default)
0 Bar
10 Bar
See Optimization of the PID Controller below.
[1] All to LCP
MG16C122