Position reconstruction is executed although changed encoder parameters (CRC checksum) were detected (fixed as of V01.11.00)
Removed from:
Servo-Inverter i950 FW: from V01.11.00
Behavior of the new version: Now, after replacing the absolute encoder when the device is switched off no position reconstruction from the stored retain data at the next boot after switching on. Instead, the actual position is formed on the basis of the raw encoder value read out.
Description of the behavior: The position reconstruction function is also incorrectly executed if a change has been detected in the feedback system (changed CRC checksum), e.g. after a replacement of the encoder.e.g. after replacing the encoder.
Background: When the device is switched off, certain position information is stored in the retain data area in a fail-safe manner, in particular the actual position (0x6064) and certain values from the existing absolute encoder. This individual information is used when the device is switched on again to correctly reconstruct the actual position, taking into account the movement/rotation of the Motor shaft. The stored retain data is individual data that only matches the absolute encoder present when the data was saved. Consequently, after replacing the encoder with the previously saved retain data, position reconstruction is no longer possible
Under what conditions does this behavior occur?
Absolute value transmitter was aexchanged (CRC checksum error detected)
