Danfoss VLT 5000 Series Operating Instructions

VLT
®
5000 Series
Application
configuration
Select Process control, closed loop if the application
has a feedback signal that is not directly related to
motor speed (rpm/Hz), but units, such as temperature,
pressure, etc. Typical applications are pumps and fans.
Set the following parameters in the order shown:
Process control, closed loop (Process PID):
Parame-
ter:
Setting: Data value:
100 Configuration Process control, closed loop [3]
201 Output frequency low limit
202 Output frequency high limit
416 Process units Define the feedback and reference
input as described in the section
PID for process control.
203 Reference/feedback range
204 Minimum reference Only if [0] in par. 203
205 Maximum reference
414 Minimum feedback
415 Maximum feedback
437 Process PID normal/inverse
438 Process PID anti-windup
439 Process PID start frequency
440 Process PID proportional gain
441 Process PID integration time
442 Process PID differentiation time Only used in high dynamic
applications
443 Process PID diff. gain limit
444 Process PID lowpass filter
Select Torque control, open loop if PI control is
required, to change the motor frequency in order
to maintain the torque ref
erence (Nm).
This is relevant for winding and extrusion applications.
Torque control, open loop, is to be selected if the
speed direction is not to be changed during operation;
this means that either a positive or a negative
torque reference is used at all times.
Set the following parameters in order shown:
Torque control, open loop:
Parame-
ter:
Setting: Data value:
100 Configuration Torque control, open loop [4]
200 Output frequency range/direction
201 Output frequency low limit
202 Output frequency high limit
203 Reference/feedback range
204 Minimum reference Only if [0] in par. 203
205 Maximum reference
414 Minimum feedback
415 Maximum feedback
433 Torque proportional gain
434 Torque integration time
Select Torque control, speed feedback,ifanencoder
feedback signal is to be generated. This is relevant
in winder and extruder applications.
MG.51.A9.02 - VLT is a registered Danfoss trademark
77

Danfoss VLT 5000 Series Specifications

General

Brand	Danfoss
Model	VLT 5000 Series
Category	DC Drives
Language	English