Corrected from:
- Inverter Drives 8400 TopLine V16.00.00
Response of the new version:
The correct single-turn resolution resulting from C426/2 is used for calculating the 'Positioning accuracy' display parameter.
What happens?
The display in C1210/5 MCK: 'Positioning accuracy' does not indicate the value corresponding to the SSI encoder single-turn resolution.
When does this behaviour occur?
The behaviour occurs when using an SSI encoder with the following settings for position feedback: C490/=3; C422/0=4 or 8.
Which products are affected?
- Inverter Drives 8400 TopLine lower than V16.00.00
Short-term measures:
As for other encoders connected to the multi-encoder interface, the calculated accuracy refers to C420/3. I.e. if the actual single-turn resolution of the SSI encoder is selected in C420/3, the calculation for C1210/5 will work correctly. The entry does not have any influence on the function, but merely on the displayed positioning accuracy.
Evaluation/recommendations:
The incorrectly calculated positioning accuracy does not have any influence on the actual position control. The display parameter only serves as a reference value for the accuracy that can be theoretically achieved.
