# ID 140040

Error when preparing for transition in phase 4 (command 128).
Description | The SERCOS command 128 (switch-over preparation in phase 4) returns an error. This means that an invalid value was found when checking the parameters valid in phase 4. A list with the idents of the invalid parameters can be read in ident 22 (list of invalid idents in phase 4).
Response | Class | 1 | Warning output
Solution | Class | 1 | Read ident 22 (list of invalid idents in phase 4) and correct invalid values.
Parameter | %1: |
Logical axis number (P-AXIS-00016).
%2: |
Faulty command (Ident 128).
%3: |
Return code 1 (internal error code)
%4: |
Return code 2 (service channel error code)
%5: |
Data status of the procedure command
Error type | -