Re-commissioning a drive that has not been fully repaired
When re-commissioning a drive that has not been fully repaired, consequential damage can
Check whether secondary faults have occurred on components which have failed.
Measures in the event of an error
Return the faulty modules back to the manufacturing plant for repair, as only limited testing is
possible when they are repaired on site.
After replacing a thyristor controller component, return the defective part to the factory. The
relevant address is available from your Siemens contact person.
Always enclose the following information:
● MLFB and serial number of the converter
● Time and date of the failure
● Description of the fault profile
● Operating point, currents and voltages
● Log file with fault messages
● Copy of the CompactFlash card
● If possible, hard copies from the plotter or screenshots
● Mounting location
Components that can be replaced
Components where it is not permissible to replace them
Incorrect replacement of components can result in death, severe injury and material damage.
Only replace components where replacement is permissible. Contact the Service Center if
other components are defective. You can find the relevant contact person under "Service &
SINAMICS SM120 6SL38715
Operating Instructions 07/2015
Specify what happened when the component failed.
Specify the equipment identifier. You can find the item code on the component and close
to the slot.