5motor control (mctrl) – Lenze 8400 User Manual

Page 256

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5

Motor control (MCTRL)

5.10

Parameterisable additional functions

256

Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05

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5.10.6

Phase sequence reversal for correcting misconnected UVW motor phases

If the motor phases are misconnected at the inverter output (e.g. phase u takes the place of phase

v), the motor will rotate in the wrong direction.
To correct such misconnected motor phases, the rotating field of the controller's output can be

reversed by selecting "1: Inverted" in

C00905

. In this case, a phase will be reversed at the output of

the inverter.
This function does not have any effect on setpoints and actual values, i.e. the polarity of the speed

setpoint/actual speed value, actual torque, output frequency, and AngleOffset do not change.

Tip!
Cases of application for this function:

• Phase sequence reversal in case of misconnected motor phases.
• Setting of the correctly signed direction of rotation for inversely mounted motors.

Note!

Up to and including version 06.00.00

, this function may only be activated for

V/f

characteristic control (VFCplus)

.

For all other motor control types, this function must not be activated because the set

control mode would not work in that case!

From version 12.00.00

, this function may be activated for all motor control types with

the exception of the ones for synchronous motor.
The activation of this function does not affect the control types for synchronous motor

since these control types require an in-phase connection of the synchronous motor.

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