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Select
Torque control, speed feedback
, if an encoder
feedback signal is to be generated. This is relevant in
winder and extruder applications.
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:
Parameter:
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 feed-
back
449
Friction loss
After
Torque control, speed feedback
, has been selec-
ted, the adjustable frequency drive should be calibra-
ted to ensure that the current torque equals the torque
of the adjustable frequency drive. For this to be ensur-
ed, a torque gauge must be fitted to the shaft so as to
enable accurate adjustment of parameter 447,
Torque
compensation
, and parameter 449,
Friction loss
. It is
recommended to run an AMA before torque calibra-
tion. Proceed as follows before beginning to use the
system:
1.
Fit a torque gauge to the shaft.
2.
Start the motor with a positive torque refer-
ence 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 torque reference and
direction of rotation. This can be done by
means of parameter 449,
Friction loss.
4.
Using a warm motor and approx. 50% load,
set parameter 447,
Torque compensation
, to
match the torque gauge. The adjustable fre-
quency drive is now ready for operation.
Select
Special motor characteristics
if the adjustable
frequency drive is to be adapted to a synchronous mo-
tor, parallel motor operation or if slip- compensation is
not required.
Set the following parameters in order shown:
Special motor characteristics:
Parameter:
Setting:
Data value:
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
VLT
®
5000 Series
MG.51.C5.22 - VLT
p
is a registered Danfoss trademark.
187
List of functions
Содержание VLT 5000 Series
Страница 2: ...VLT 5000 Instruction Manual ...
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Страница 45: ...Mechanical dimensions cont VLT 5000 Series 42 MG 51 C5 22 VLT p is a registered Danfoss trademark ...
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Страница 186: ...VLT 5000 Series MG 51 C5 22 VLT p is a registered Danfoss trademark 183 EC EMC ...
Страница 196: ...RELATIVE VLT 5000 Series MG 51 C5 22 VLT p is a registered Danfoss trademark 193 List of functions ...
Страница 197: ...EXTERNAL PRESET VLT 5000 Series 194 MG 51 C5 22 VLT p is a registered Danfoss trademark ...
Страница 198: ...References VLT 5000 Series MG 51 C5 22 VLT p is a registered Danfoss trademark 195 List of functions ...
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Страница 238: ...Rev 2006 12 12 www danfoss com drives 175R5271 MG51C522 MG51C522 MG51C522 VLT 5000 Instruction Manual ...
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