Remedied from:
8400 StateLine SW V4.00 onwards
8400 HighLine SW V4.00 onwards
Behaviour of the new version?
The above-named software version rectifies this functional restriction.
Which products are affected?
8400 StateLine SW ≤ V3.01
8400 HighLine SW ≤ V2.01
What happens?
In the operating mode 'V/f characteristic control with retraction' (VFCplus) (L-C00006 = 6 or 9) with operation against a mechanical blockade (nact = 0 rpm), the device's set maximum current Imax (L-C00022) can be exceeded.
When does the problem occur?
The problem occurs if the operating mode is 'V/f characteristic control with retraction' (VFCplus) and the motor is accelerated against a mechanical blocked (nact = 0 rpm), e.g. closed brake.
Possible diagnostics?
Compare current motor current (L-C00054) with set Imax limit (L-C00022)
Short-term measures/recommendations?
Adapt braking threshold or torque limit 'nTorqueMotLim_a' and 'nTorqueGenLim_a'
Evaluation:
This behaviour is usually noticed during commissioning.
Published with service message No. 2009/35
