Lenze E94AxPExxxx - Manual (Page 186)

6 Motor interface
6.3 Adjusting motor and controller to each other
186
Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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6.3.5 Determining the motor parameters
To control an electrical machine, the motor parameters must be known.
• The motor parameters for Lenze motors are known and are already set accordingly by selecting
them from the »Engineer« motor catalogue or reading out the ENP.
• The device command "Determine motor parameters" is used to automatically determine the
motor parameters for a third-party motor that are listed in the following table – if they are not
known:
Preconditions
• For the automatic determination of the motor parameters it is required that first the switching
performance of the inverter has been optimised successfully, to ensure that the current has a
sinusoidal form.  Optimising the switching performance of the inverter ( 183)
• The motor parameters listed in the following table are excluded from the automatic
determination and must be adapted to the motor used (see motor nameplate) before the
determination.

Note!
Only required for servo control if the motor parameters are to be defined by a motor
from a third-party manufacturer!
Always required for sensorless vector control!
• An optimum drive performance can only be achieved with the sensorless vector
control if the motor parameters correspond to the real motor as exactly as possible.
Parameter Info ASM SM
C00079 Mutual motor inductance 
C00082 Motor rotor resistance 
C00084 Motor stator resistance  
C00085 Motor stator leakage inductance  
C00091 Motor cosine phi 
C00092 Motor magnetising current 

Danger!
This procedure may only be carried out during commissioning, not during operation!
• During the procedure the motor is energised so that:
• it cannot be excluded that the connected mechanical components may move!
• the windings heat up.
If you repeat the procedure, ensure that the motor is not thermally overloaded
(particularly if no temperature feedback is used).
Parameter Info
C00081 Rated motor power
C00084 Motor stator resistance
(Default setting is used as starting value for the automatic determination.)
C00087 Rated motor speed