Lenze I95AE240F User Manual

12.2.2.1 Resolver error compensaon
The actual posion detected by the resolver is not exactly the same as the real physical posi-
on. There are always deviaons to a lesser or greater extent.
An
idencaon run of the resolver automacally generates the adjustment values required
for compensaon of the resolver error.
The values calculated have a counteracve correcve eect on the underlying cause in the
following parameters:
Cause Remedy
Sine and cosine track do not magnese orthogonally to each other. 0x2C44:001
Correcon of the angle by means of which the two resolver tracks are
supplied in a manner relave to one another.
The inductances of the sine and cosine track of the resolver have slightly
dierent values.
0x2C44:002 and 0x2C44:003
Adjusng the gains of the digital-analog converters which feed the
r
esolver tracks.
Condions for execung the
idencaon run
1.
Mechanic
al motor / inverter connecon
•
If possible, execute the idencaon run before the motor is installed in the machine.
Big
ger load changes at the motor may have a negave impact on the idencaon
result.
•
Motor and resolver must be properly connected to the inverter.
•
The motor must rotate freely.
2.
Voltage supply of the inverter
•
The inverter must be supplied with mains voltage. Check: 0x6041, bit 4 = TRUE.
•
The control electronics must be supplied with voltage. For this purpose, some designs
require an external voltage source.
3.
Correct seng of the following data in the »EASY Starter« engineering tool:
•
Number of resolver pole pairs (0x2C43)
•
Speed-controlled or posion-controlled motor in servo control
4.
The inverter must be connected "online" to the engineering tool.
Possible responses during the execuon
•
The idencaon method can cause an uneven motor running during the idencaon.
•
The direcon of rotaon can change.
This does not ha
ve a negave impact on the quality of the idencaon. In this case, the
inverter automacally interrupts the idencaon run and automacally connues it if a
constant speed is reached again.
•
If the motor already installed in the machine does not have sucient range in one direc-
on for execung the idencaon run, you can also reverse the driving direcon while
the idencaon is acve. In this case, the idencaon automacally switches to the
"Idencaon temporarily interrupted ". The status is deacvated as soon as a constant
speed has been reached again.
In the event of an interrupon, the
idencaon run is stopped. An error mes-
sage is displayed.
If 0 % is set, the gain of the respecve resolver track is only 95 % of the Lenze
seng.
The detected gain can assume values in the range of 0 ... 100 %.
In case of a successful resolver error compensaon, only one of the two gains is
adjusted. The other value remains at 100 %.
How to run an idencaon
If possible, execute the idencaon run before the motor is installed in the
machine. If relavely big load changes occur in the kinemacs to be moved, this
ma
y have a negave impact on the result of the idencaon run.
Conguring the feedback system
Sec
ond feedback system for the techology applicaon
Resolver sengs
191

Lenze I95AE240F Specifications

General

Brand	Lenze
Model	I95AE240F
Category	Inverter
Language	English