Eliminated from:
- i700 servo inverter V01.05.06.9665
Response of the new version:
The status display for pole position identification (at standstill) works correctly.
What happens?
If the pole position identification (at standstill) is not completed successfully and aborted, the user gets the incorrect information "All OK".
Although an error number is entered in the CiA error object (0x603F), the identification status word (0x2832) falsely reports via bit 3 = 0 that the PPI has been completed successfully. According to the specifications, the dialogs in the engineering tools (EASY Starter / PLC Designer) evaluate the status word object 0x2832 to display a failure in the execution of the PPI, if necessary.
The pole position of the resolver (0x2C03.2) or the encoder (0x2C03.4) is only identified correctly and synchronous motor operation is only possible if the PPI is completed successfully.
When does the behaviour occur?
The behaviour occurs if PPI could not be completed successfully.
Which products are affected?
- i700 servo inverter ≤ V01.04.00.9125
Short-term measures:
Check in the CiA error object (0x603F) whether there is a current error entry for the PPI.
Evaluation/recommendations:
In particular in applications with sin/cos encoders without Hiperface absolute value (rotational or linear) which require the identification of the pole position every time the inverter is switched on, a corresponding query of the error number must be provided for via the application program.
