Inverter Drives 8400 HighLine V16.00.00.00 and Hardware-Version 3A
Inverter Drives 8400 TopLine V16.00.00.00 and Hardware-Version 3A
Response of the new version: The Hardware-Clamp/ limitation of current-peaks is inactiv for Servo control with Software-Version V16.00.00.00 and Hardware-Version 3A.
Which products are affected?
Inverter Drives 8400 HighLine power range >= 4 kW
Inverter Drives 8400 TopLine power range >= 4 kW
What happens? In spite of using an SC control mode, an OC11 error occurs in the case of current peaks. When does the problem occur? With control mode SC, in the case of dynamic applications the clamp peak current cutoff function may respond. This occurs in particular during operation with a 2kHz switching frequency. However, the use of a clamp peak current cutoff function is not reasonable for servo applications. For the devices from 4kW this function has been implemented via hardware and cannot be deactivated for SC control modes.
Diagnostics options? In the case of current peaks, in particular at a switching frequency of 2kHz, OC11 error messages occur. Short-term measures/recommendations? Change the switching frequency from 2kHz to 4kHz.
Evaluation: Due to the restriction described, in specific applications the devices cannot be actuated with a switching frequency of 2kHz anymore, the result being that neither the ensured rated power (at 2kHz) nor the ensured peak current (at 2kHz) is provided.
