2.8.10 Programming Order
NOTE!
In this example, it is assumed an induction motor is used, i.e., that
1-10 Motor Construction
= [0] Asynchron.
Function
Par. no.
Setting
1) Make sure the motor runs properly. Do the following:
Set the motor parameters using nameplate data.
1-2*
As specified by motor nameplate
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.
Run Motor Rotation Check.
1-28
If the motor runs in the wrong direction, remove
power temporarily and reverse two of the motor
phases.
3) Make sure the Adjustable frequency drive limits are set to safe values.
Make sure that the ramp settings are within the
capabilities of the drive and the 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.
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.
20-13
20-14
0 Bar
10 Bar
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).
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]
Table 2.9
Introduction to VLT® HVAC D...
VLT
®
HVAC Drive Design Guide
MG11BB22 - VLT
®
is a registered Danfoss trademark
2-31
2
2
