Danfoss VLT Decentral Drive FCD 302 Design Manual page 55

Application Examples
L1
L2
L3
N
PE
F1
91 92 93 95
L1 L2
4 4
U V
96 97
M
3
Illustration 4.8 Example - Speed Control Connections
Function
1) Make sure the motor runs properly. Do the following:
Set the motor parameters using name plate data
Have the frequency converter makes an Automatic
Motor Adaptation
2) Check the motor is running and the encoder is attached properly. Do the following:
Press the "Hand On" LCP key. Check that the motor is
running and note in which direction it is turning
(henceforth referred to as the "positive direction").
Go to 16-20 Motor Angle. Turn the motor slowly in the
positive direction. It must be turned so slowly (only a
few RPM) that it can be determined if the value in
16-20 Motor Angle is increasing or decreasing.
If 16-20 Motor Angle is decreasing then change the
encoder direction in 5-71 Term 32/33 Encoder Direction.
3) Make sure the drive limits are set to safe values
Set acceptable limits for the references.
Check that the ramp settings are within drive capabilities
and allowed application operating specifications.
Set acceptable limits for the motor speed and frequency. 4-11 Motor Speed
4) Configure the Speed Control and select the Motor Control principle
Activation of Speed Control
54
12
37
L3 PE
18
50
53
55
39
20
W PE
32
33
98 99
24 Vdc
MG04H102 - VLT
®
VLT Decentral Drive FCD 302
The following must be programmed in order shown (see
explanation of settings in the FCD 302 Programming Guide,
MG04G)
In the list it is assumed that all other parameters and
switches remain at their default setting.
Parameter no. Setting
1-2* As specified by motor name plate
1-29 Automatic [1] Enable complete AMA
Motor Adaptation
(AMA)
Set a positive reference.
16-20 Motor Angle N.A. (read-only parameter) Note: An increasing value
overflows at 65535 and starts again at 0.
5-71 Term 32/33 [1] Counter clockwise (if 16-20 Motor Angle is decreasing)
Encoder Direction
3-02 Minimum 0 RPM (default)
Reference 1500 RPM (default)
3-03 Maximum
Reference
3-41 Ramp 1 Ramp default setting
up Time default setting
3-42 Ramp 1 Ramp
Down Time
0 RPM (default)
Low Limit [RPM] 1500 RPM (default)
4-13 Motor Speed 60 Hz (default 132 Hz)
High Limit [RPM]
4-19 Max Output
Frequency
1-00 Configuration [1] Speed closed loop
Mode
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is a registered Danfoss trademark