6motor interface – Lenze E94AxPExxxx User Manual

Page 182

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6

Motor interface

6.3

Adjusting motor and controller to each other

182

Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06

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• The rate of the current rise for the pole position identification can be adjusted proportionally in

C00647

. The Lenze setting "100 %" corresponds to the fixed rise rate setting.

• The P component of the PI controller for the pole position identification can be adjusted in

C00648

. With the Lenze setting "0", the PI controller continues to work as an I controller (as in

the previous software versions).

• The I component of the PI controller for the pole position identification can be adjusted in

C00649

. Please observe the following notes:

• The variable Position.dnActualMotorPos can be used to monitor the deviation of the position

from the start position with the

Oscilloscope

function in »Engineer«.

• In order to be able to compensate a position deviation faster, first the reset time in

C00649

should be reduced. If this does not result in the desired behaviour, the proportional gain can

be increased in

C00648

.

• Ensure that the position control does not get unstable. We therefore recommend to use an I

controller.

• The pole position identification comprises a monitoring function for the follow-up control. If a

movement greater than the permissible movement set in

C00650

is detected by the encoder

system:

• the pole position identification procedure is aborted.
• the response parameterised in

C00640

(Lenze setting: "Fault") is activated.

• the error message "Pole position identification cancelled" is entered into the logbook of the

controller.

• In order to detect a non-permissible blocking of the machine, a positive and negative test angle

relative to the current position are defined after the identification. The machine must align

itself to these two test angles within a tolerance of 25 %. The size of the test angle corresponds

to the max. permissible movement set in

C00650

.

Note!

If the current amplitude is set to 400 % in

C00646

>, the device utilisation (Ixt)

monitoring and/or one of the motor monitoring functions may respond and cause the

abort of the pole position identification.

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