What it means
F30075 is raised when a communication error interrupts the configuration of the power unit by the Control Unit, so that the configuration cannot be completed. The drive switches off (OFF2) and the fault must be acknowledged before operation can continue. About the underlying reason the manual itself says only: The cause is not clear.
Why it appears
- A communication error occurred while the Control Unit was configuring the power unit.
- No more specific cause is given — the manual states
The cause is not clear.
What to check
- Acknowledge the fault and continue operation.
- If the fault occurs again, carry out a POWER ON — switch the drive off and switch it on again.
- If the fault still occurs, replace the power unit.
Reading the message value
The drive writes the fault value into r0949; interpret it as a decimal number:
- 0 — the output filter initialization was unsuccessful.
- 1 — the activation/deactivation of the regenerative feedback functionality was unsuccessful.
- 2 — the activation/deactivation of the chopper function was unsuccessful. This value is printed only in the S120/S150 description of this fault; the other manuals list only the values 0 and 1.
Parameters the manual names
- r0949 — read this parameter to see the fault value of F30075; interpret it as a decimal number (0, 1 or 2) to identify which step of the power unit configuration was unsuccessful.
Acknowledging and restarting
F30075 is cleared by acknowledging the fault, after which operation can continue. If the fault returns, the next step the manual names is a POWER ON (switch-off/switch-on); if that does not help, the power unit must be replaced. Reading r0949 afterwards shows which configuration step failed.
What differs between the drive families
Straight from the manuals' own fields — F30075 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Control Unit (CU) | SINAMICS S120, S150 List Manual · p. 2965 |
| G130, G150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Control Unit (CU) | SINAMICS G130, G150 List Manual · p. 1672 |
| G120 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | — | SINAMICS G120 · p. 917 |
| G120XA | OFF2 | IMMEDIATELY | — | — | SINAMICS G120XA PN converter · p. 1163 |
The drives this code lives on
F30075 is described for G120, G120XA, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does SINAMICS fault F30075 mean?
It means a communication error occurred while the Control Unit was configuring the power unit, so the configuration was unsuccessful. The manual itself states that the cause is not clear.
How do I clear F30075?
Acknowledge the fault and continue operation. If the fault occurs again, carry out a POWER ON (switch-off/switch-on); if required, replace the power unit.
What do the F30075 fault values 0, 1 and 2 in r0949 mean?
0 means the output filter initialization was unsuccessful, 1 means the activation/deactivation of the regenerative feedback functionality was unsuccessful, and 2 (listed for S120/S150) means the activation/deactivation of the chopper function was unsuccessful.
Why does F30075 keep coming back?
The manual gives no more specific cause for this fault. If acknowledging is not enough and the fault returns after a POWER ON, the remaining step it names is to replace the power unit.
Codes next to this one
Source
Written from Siemens' own List Manuals and operating instructions; every number, designation and parameter on this page is checked against them before publication.
All SINAMICS codes: fault and alarm codes · the F30xxx group · SINAMICS manuals · Siemens manuals