Danfoss VLT AutomationDrive FC 300 Design Manual page 35

FC 300 Design Guide
Example of Process PID Control set-up
Function
Initialize the frequency converter
1) Set motor parameters:
Set the motor parameters according to name
plate data
Perform a full Automation Motor Adaptation
2) Check that motor is running in the right direction.
When motor is connected to frequency converter with straight forward phase order as U - U; V- V; W - W motor shaft usually
turns clockwise seen into shaft end.
Press "Hand On" LCP key. Check shaft direction
by applying a manual reference.
If motor turns opposite of required direction:
1. Change motor direction in par. 4-10
2. Turn off mains - wait for DC link to discharge
- switch two of the motor phases
Set configuration mode
Set Local Mode Configuration
3) Set reference configuration, ie. the range for reference handling. Set scaling of analog input in par. 6-xx
Set reference/feedback units
Set min. reference (10° C)
Set max. reference (80° C)
If set value is determined from a preset value
(array parameter), set other reference sources
to No Function
4) Adjust limits for the frequency converter:
Set ramp times to an appropriate value as 20
sec.
Set min. speed limits
Set motor speed max. limit
Set max. output frequency
Set S201 or S202 to wanted analog input function (Voltage (V) or milli-Amps (I))
NOTE! Switches are sensitive - Make a power cycling keeping default setting of V
5) Scale analog inputs used for reference and feedback
Set terminal 53 low voltage
Set terminal 53 high voltage
Set terminal 54 low feedback value
Set terminal 54 high feedback value
Set feedback source
6) Basic PID settings
Process PID Normal/Inverse
Process PID Anti Wind-up
Process PID start speed
Save parameters to LCP
Par. Setting
no.
14-22 [2] Initialization - make a power cycling - press reset
1-2* As stated on motor name plate
1-29 [1] Enable complete AMA
4-10 Select correct motor shaft direction
1-00 [3] Process
1-05 [0] Speed Open Loop
3-01 [60] ° C Unit shown on display
3-02 -5° C
3-03 35° C
3-10 [0] 35%
P
3 − 10 (
Ref
=
Par. 3-14 to par. 3-18 [0] = No Function
3-41 20 sec.
3-42 20 sec.
4-11 300 RPM
4-13 1500 RPM
4-19 60 Hz
6-10 0 V
6-11 10 V
6-24 -5° C
6-25 35° C
7-20 [2] Analog input 54
7-30 [0] Normal
7-31 [1] On
7-37 300 rpm
0-50 [1] All to LCP
MG.33.BA.02 - VLT ® is a registered Danfoss trademark
3. Introduction to FC 300
0 )
× (( P 3 − 03 ) − ( p
100
3 − 02 )) = 24, 5° C
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