Corrected from:
Inverter Drives 8400 TopLine from firmware version 14.00.00.00
Response of the new version?
Code C1108/1 8 "L_SwitchPoint_1: dead time factor 1 8" provides the possibility of individually determining the unit of the above-mentioned dead time code from 4 factors.
Selection value 1: 1 μs
Selection value 2: 10 μs
Selection value 3: 100 μs
Selection value 4: 1000 μs
The standard value is 2: 10μs; like this, the new firmware remains compatible to the previous versions.
Which products are affected?
Inverter Drives 8400 HighLine and TopLine with a firmware version lower than 14.00.00.00
What happens?
The resulting dead time is ten times longer compared to that of the parameterisation.
When does the problem occur?
If code C1062/1 8 "L_SwitchPoint_1: dead time 1 8" is used, since it is not scaled in [μs] but in [10μs], in contrast to the unit represented in the Engineer.
Short-term measures/recommendations?
Carry out parameterisation of the dead time with a factor of 0.1.
Evaluation:
Activation of the peripheral devices is delayed by factor 10 of the dead time. This makes it impossible to obtain the accuracy required.
