Danfoss VLT 5003 Operating Instructions

VLT
®
5000 Series
Torque control, speed feedback, is selected if it is to
be possible to change the speed direction, while at
the same time maintaining the torque reference.
Set the following parameters in order shown:
Torque control, speed feedback:
Parame-
ter:
Setting: Data value:
100 Configuration Torque control, speed feedback [5]
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
306 Encoder feedback, input B [24]
307 Encoder feedback, input A [25]
329 Encoder feedback, pulse/rev
421 Speed PID low-pass filter time
448 Gear ratio
447 Torque regulation, speed feedback
449 Friction loss
After Torque control, speed feedback, has been
selected, the frequency converter should be calibrated
to ensure that the current torq
ue equals the torque
of the frequency converter. For this to be ensured,
a torque gauge must be fitted to the shaft so as to
enable accurate adjustmen
t of parameter 447, Torque
compensation , and parameter 449, Friction loss.Itis
recommended to run an AMA before torque calibration.
Proceed as follows be
fore beginning to use the system:
1. Fit a torque gauge to
the shaft.
2. Start the motor with a positive torque reference and a
positive direction of rotation. Read the torque gauge.
3. Using the same torque reference,
change the
direction of rotation from positive to negative.
Read the torque and adjust it to the same
level as for the positive torq
ue reference and
direction of rotation. This can be done by means
of parameter 449, Friction loss.
4. Using a warm motor and app
rox. 50% load,
set parameter 447, Torque compensation,to
match the torque gauge. The frequency converter
is now ready for opera
tion.
Select Special motor characteristics if the
frequency converter is to be adapted to a
synchronous motor, parallel motor operation or if
slip- compensation is not required.
Set the fol
lowing parameters in order shown:
Sp
ecial motor characteristics:
Par
ame-
ter:
Set
ting:
Dat
avalue:
101 Torque characteristics Special motor characteristics [5] or [15]
432 + 431 F5 frequency/U5 voltage
430 + 429 F4 frequency/U4 voltage
428 + 427 F3 frequency/U3 voltage
426 + 425 F2 frequency/U2 voltage
424 + 423 F1 frequency/U1 voltage
422 U0 voltage
MG.51.A9.02 - VLT is a registered Danfoss trademark
78

Danfoss VLT 5003 Specifications

General

Brand	Danfoss
Model	VLT 5003
Category	DC Drives
Language	English