Eliminated from:
Servo inverter i700 V01.02.03.8426
Behaviour of the new version?
If the i700 servo inverter is controlled via the 'Manual control for the direction of rotation of the motor' an unstable motor control (oscillation, high-pitched sound emission) does no longer occur. The default parameter for this operating mode has been selected in such a way that a stable operation is possible with the basic settings of most motors.
What is the response?
If the i700 servo inverter is controlled via the 'Manual control for the direction of rotation of the motor', the motor emits a high-pitched sound, or the motor oscillates.
When does the problem occur?
The response described above may occur when the 'Manual control for the direction of rotation of the motor' is used and the suitable motor has not been parameterised before.
Which products are affected?
Servo inverter i700 ≤ V01.01.02.7828
Short-term measures/recommendations?
Set the connected motor before using the manual control for the direction of rotation of the motor. In the PLC Designer or EASY Starter, for instance, use the 'Motor commissioning' tab of the servo inverter.
Evaluation:
For servo inverters that are inhibited in terms of software, the manual control for the direction of rotation of the motor is typically used during the commissioning phase.
