Example of how to Programme the Speed Control
In this case, the Speed PID Control is used to maintain a
constant motor speed regardless of the changing load on
the motor. The required motor speed is set via a potenti-
ometer connected to terminal 53. The speed range is
0-1500 RPM corresponding to 0-10 V over the potenti-
ometer. Starting and stopping is controlled by a switch
connected to terminal 18. The Speed PID monitors the
actual RPM of the motor by using a 24 V (HTL) incremental
encoder as feedback. The feedback sensor is an encoder
(1024 pulses per revolution) connected to terminals 32 and
33. The pulse frequency range to terminals 32 and 33 is 4
Hz-32 kHz
M
3
96 97
99
98
91 92 93 95
50
12
L1 L2
L1
PE
L3
W PE
V
U
F1
L2
L3
N
PE
18
53
27
55
20
32
33
24 Vdc
130BD372.10
Illustration 2.12 Speed Control Programming
Product Overview
VLT
®
AutomationDrive FC 360 Design Guide
MG06B202 - VLT
®
is a registered Danfoss trademark
25
2
2