17 function library, Stop – Lenze 8400 HighLine User Manual
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Lenze · 8400 HighLine · Referenzhandbuch · DMS 10.0 EN · 06/2014 · TD05/TD14
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17
Function library
17.1
Function blocks
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Angular trimming
Angular trimming enables the rotor position to be put forward or back with regard to the setpoint
(the drive is leading or lagging).
The correction value must has to be defined in [increments] via the nPositionTrimming input. It is
internally added to the angle setpoint.
• Scaling: A motor revolution is mapped with 65536 increments or steps.
• The maximum angular trimming amounts to ±½ motor revolution (±32767 increments).
• When analog values are selected: 100 % ≡ ¼ motor revolution ≡ 16384 increments.
• The setting range can be extended with the multiplier to be set in
Angular offset
The dnPosOffset_p input serves to define a permanent angular offset for the setpoint of the drive.
• An adjustment takes place via the following error (dnDeltaPos_p) output and via the speed
change at the nSpeedSetOut_v output.
• Example: A angular offset of 90° is to be set on the load side with a gearbox ratio of 3.8147:
Speed-proportional angle adjustment
The speed-proportional angle adjustment enables a leading or lagging of the angle with increasing
speed and serves to compensate dead times and transmission times.
The correction value selected in
. in [increments] refers to a speed of 15000 rpm (linear
relationship):
[17-36] Connection between offset/speed
Stop!
Change the angular offset only step by step as the FB does not contain a ram generator
for preventing torque impulses.
: Speed-proportional angle adjustment
Effective offset
Current speed
dnPosOffset_p
90°
360°
------------
65536
Increments
Motor revolution
--------------------------------------------
3.8147
⋅
⋅
62500 [increments]
=
=
Offset
v
16384 inc/ms
(15000 rpm)
0
1