Danfoss VLT AutomationDrive FC 360 Design Manual page 32

Product Overview
Example about how to programme the speed control
In this example, the speed PID control is used to maintain
a constant motor speed regardless of the changing load
2 2
on the motor. The required motor speed is set via a
potentiometer 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
(1,024 pulses per revolution) connected to terminals 32
and 33. The pulse frequency range to terminals 32 and 33
is 4 Hz–32 kHz
L1
L2
L3
N
PE
F1
91 92 93 95
L1 L2 L3
U V W PE
96 97 98
M
3
Illustration 2.24 Speed Control Programming
30
12
27
PE
18
50
53
55
20
32
33
99
24 Vdc
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Design Guide
MG06B402