Danfoss VLT Midi Drive FC 280 Design Manual page 31

Product Overview
Set acceptable limits for the motor speed and frequency.
4) Configure the speed control and select the motor control principle:
Activation of speed control
Selection of motor control principle
5) Configure and scale the reference to the speed control:
Set up analog input 53 as a reference source.
Scale analog input 53 0 Hz (0 V) to 50 Hz (10 V)
6) Configure the 24 V HTL encoder signal as feedback for the motor control and the speed control:
Set up digital input 32 and 33 as encoder inputs.
Select terminal 32/33 as speed PID feedback.
7) Tune the speed control PID parameters:
Use the tuning guidelines when relevant or tune manually.
8) Finish:
Save the parameter setting to the LCP for safe keeping.
Table 2.7 Programming Order for Speed PID Control
MG07B102
Design Guide
Parameter 4-12 Motor
Speed Low Limit [Hz]
Parameter 4-14 Motor
Speed High Limit [Hz]
Parameter 4-19 Max
Output Frequency
Parameter 1-00 Configu-
ration Mode
Parameter 1-01 Motor
Control Principle
Parameter 3-15 Reference 1
Source
6-1* Analog Input 1
Parameter 5-14 Terminal
32 Digital Input
Parameter 5-15 Terminal
33 Digital Input
Parameter 7-00 Speed PID
Feedback Source
7-0* Speed PID Ctrl.
Parameter 0-50 LCP Copy
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0 Hz
50 Hz
60 Hz
[1] Speed closed loop
+
[1] VVC
Not necessary (default)
Not necessary (default)
[82] Encoder input B
[83] Encoder input A
[1] 24 V Encoder
[1] All to LCP
2 2
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