Danfoss VLT 5000 Series, Instruction Manual, Page: 189 / 240

Select Process control, closed loop if the application
has a feedback signal that is not directly related to mo-
tor speed (rpm/Hz), but some other unit, such as tem-
perature, pressure, etc. Set the following parameters
in the order shown:
Process control, closed loop (Process PID):
Parameter:
Setting: Data value:
100 Configuration Process control, closed loop [3]
200 Output frequency range/direction
201 Output frequency low limit
202 Output frequency high limit
203 Reference/feedback range
414 Minimum feedback Only if [0] or [2] in par. 200
415 Maximum feedback
204 Minimum reference Only if [0] in par. 203
205 Maximum reference
416 Process units
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
443 Process PID diff. gain limit
444 Process PID lowpass filter
Select Torque control, open loop if PI control is re-
quired, to change the motor frequency in order to
maintain the torque reference (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 ref-
erence is used at all times.
Set the following parameters in order shown:
Torque control, open loop:
Parameter:
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
VLT
®
5000 Series
186 MG.51.C5.22 - VLT
p
is a registered Danfoss trademark.