Eliminated from:
9400 HighLine firmware version V08.00.24.00
Behaviour of the new version?
The Current.dnActualMotorCurrent oscilloscope variable has been newly assigned and is now calculated from I_total / root(2). The result is the r.m.s.value of the total motor current (even if f = 0 Hz).
If previously saved measuring configurations are loaded, the process of integrating the variable must be repeated to update the scaling.
Which products are affected?
9400 HighLine firmware version ≤ V07.01.06.00
What happens?
The value of the Current.dnActualMotorCurrent oscilloscope variable is not displayed as an r.m.s. value but as a peak value instead.
When does the problem occur?
When the variable is used in the oscilloscope.
Possible diagnostics?
Comparison of the displayed value and e.g. the value of a clip-on ammeter.
Short-term measures/recommendations?
Adjustment of the scaling in the oscilloscope with a ratio of 1/root(2).
Evaluation:
This restriction is only apparent if the values are compared to real values. It can be avoided by the workaround described above.
Published in Service Message No. 26/2010
