Eliminated from:
Inverter Drives 8400 HighLine and TopLine from firmware version 12.00.00.00
Behaviour of the new version?
The output frequency in C58 is always displayed with zero at controller inhibit.
Which products are affected?
Inverter Drives 8400 StateLine, HighLine, and TopLine with a
firmware version lower than 12.00.00.00
What happens?
The output frequency in C58 is not, as expected, displayed with '0' at controller inhibit, but is furthermore calculated from the actual speed value and the slip.
When does the problem occur
If the motor shaft in the case of the servo control ASM control mode (C006=2) is twisted while the inverter is inhibited.
Diagnostics options?
Rotate motor while the controller is inhibited and vary the setting of the C006 control mode between servo control ASM and VFCplus. Only if C006=2 is selected, a non-zero output frequency is displayed in C58.
Short-term measures/recommendations?
None.
Evaluation:
While the inverter is inhibited, C58 cannot be evaluated as display for the current output frequency. The function of the inverter is not affected.
