Setpoint Channel and Closed-Loop Control 11/03
SINAMICS G150
7-2 Operating Manual
7.2 Setpoint Channel
7.2.1 Direction Reversal
Description
If an incorrect phase sequence was connected when the cables were installed, and
the phase sequence cannot be corrected by swapping the motor cables, it can be
corrected by means of a negative command value or by parameterizing the cabinet
unit, thereby enabling the direction to be reversed. This is mainly used for
operating the drive in both directions of rotation.
Prerequisites
Direction reversal is triggered:
• via PROFIBUS by means of control word 1, bit 11
• via the cabinet operator panel (LOCAL mode) with the "direction reversal" key.
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