Function extension:
Both handling and the duration of the "Resolver identification" commissioning function have been improved.
So far, the identification process has been complicated by the following conditions:
The identification run could only be started at speeds > 500 rpm.
If the speed fell below the treshold of 500 rpm, the identification run was cancelled.
Approx. 1900 revolutions had to be achieved for a successful run.
Behaviour of the new version:
- The resolver identification can be started at any time.
The actual identification run automatically starts when reaching a constant speed > 500 rpm (acceleration is evaluated for this). - In the event of a significant speed change (+/- 20% of the constant speed identified), the identification run will be temporarily stopped.
In this case, the algorithm will change to a stand-by state. The identification will be continued as soon as the speed has reached the constant speed again. - The number of revolutions required for the identification could be approximately reduced by a factor of 6.
- The current status of the identification run is displayed via a new status word. The status word can be mapped as a process date.
- Maximum duration of an identification run:
In the event of too frequent or too long interruptions, the identification run can be aborted by means of a parameterisable time-out time.
Contained in which products?i700 servo inverter, series devices (V02.x): from V02.10.12.11906
existing devices (V01.x): from V01.10.12.11905
Application:In general, the "resolver identification" ensures an improved drive performance for all applications.
This becomes particularly evident in dynamic applications or in the case of mechanical constellations with unfavourable stability characteristics (moment of inertia ratio kJ).
If the requirements on the drive behaviour are rather low, you can do without a resolver identifcation.
