5motor control (mctrl) – Lenze 8400 User Manual
Page 136
5
Motor control (MCTRL)
5.1
Motor selection/Motor data
136
Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
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Danger!
During motor parameter identification, the motor is energised via the outputs U, V and
W of the controller!
Observe the corresponding safety instructions!
Stop!
• If motor parameter identification is aborted, unstable drive behaviour may be the
result!
• The following applies to the motor parameter identification of synchronous motors:
• Only the extended motor parameter identification can be used.
• During the motor parameter identification, the shaft of the synchronous motor
mus rotate freely (must not be locked).
• During motor parameter identification, rotations take place.
• For asynchronous motors as of a power of 11 kW, the following applies:
• Only the extended motor parameter identification can be used.
• When the extended motor parameter identification is started, it is decided based on
the motor control selected in
whether an asynchronous or a synchronous
motor is to be identified.
• Thus, set a suitable motor control for the motor in
before starting the
extended motor parameter identification!
Note!
• We strongly recommend motor parameter identification before the initial
commissioning of the sensorless vector control (SLVC) and the sensorless control for
synchronous motors (SLPSM).
• 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 (
) 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.