Lenze 8400 motec - Manual (Page 88)

5 Motor control (MCTRL)
5.2 Motor selection/Motor data
88 Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05
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5.2.2 Automatic motor data identification
Via the "Identify motor parameters" device command ( C00002/23 ), the inverter characteristic, the
influences of the motor cable, and the motor parameters listed in the table below can be identified
automatically:
Parameter Info ASM PSM
C00015 V/f base frequency  
C00016 V
min
boost  
C00021 Slip compensation 
C00084 Motor stator resistance  
C00085 Motor stator leakage inductance  
C00092 Motor magnetising inductance 
C00095 Motor magnetising current 

Danger!
During motor parameter identification, the motor is energised via the outputs U, V and
W of the controller!

Stop!
If motor parameter identification is aborted, unstable drive behaviour may be the result!

Note!
• We strongly recommend motor parameter identification before the initial
commissioning of the sensorless vector control (SLVC).
• The motor parameter identification must be carried out when the motor is cold!
• The load machine may remain connected. Holding brakes, if present, may remain in
the braking position.
• With an idling motor, a small angular offset may occur at the motor shaft.
• The amplitude of the rated motor current (
C00088 ) is injected to identify the stator
resistance. If the rated motor current amounts to less than 60 % of the rated inverter
current, at least 60 % of the rated inverter current will be injected to ensure sufficient
motor parameter identification accuracy.