What it means
Infeed: Line voltage too high at power on: the infeed has found the line supply voltage too high at the moment it was switched on. At power on, the RMS line supply voltage (Vrms) is so high that controlled operation is not possible without exceeding the permissible maximum voltage in the DC link (p0280); the drive raises the fault when Vrms * 1.5 > p0280
.
In response, the drive goes to the OFF2 state — it blocks immediately — and the fault must be acknowledged before the drive will restart.
Why it appears
- The RMS line supply voltage (Vrms) connected when switching on was so high that controlled operation is not possible without exceeding the permissible maximum voltage in the DC link (p0280).
- The drive triggers the fault when 1.5 times the RMS line supply voltage exceeds the value of p0280.
What to check
- Check the line supply voltage.
- Check the maximum DC link voltage (p0280) and, if required, increase it.
- Check the line supply voltage and compare it with the line supply voltage set in the drive (p0210).
- Check whether the power unit is dimensioned for the line supply voltage actually being used.
Reading the message value
- The drive stores the fault value in r0949 as a floating-point number.
- The value is the lowest possible controlled DC link voltage for the line supply voltage presently connected — i.e. the lowest DC link voltage at which controlled operation could still be carried out with the line supply currently connected.
Parameters the manual names
- p0280 (DC link voltage maximum steady-state / Vdc_max stat) — the permissible maximum steady-state voltage in the DC link; for this fault, check it and increase it if required.
- p0210 (Drive unit line supply voltage / U_connect) — the line supply voltage set in the drive; compare the line supply voltage actually present with this setting.
- r0949 (Fault value) — holds the fault value of this fault: the lowest possible controlled DC link voltage for the line supply voltage presently connected, as a floating-point number.
Acknowledging and restarting
The fault is acknowledged immediately: as soon as the cause has been removed, it can be acknowledged right away, and switching the power supply off and on also acknowledges it. Before restarting, make sure that 1.5 times the RMS line supply voltage no longer exceeds p0280 — otherwise the drive raises the fault again at the next power on.
The same on every family
Every manual that describes F06300 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 (NONE, OFF1) | IMMEDIATELY (POWER ON) | Network fault (2) | None | SINAMICS S120, S150 List Manual · p. 2764 |
The drives this code lives on
F06300 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F06300 mean on a SINAMICS S120 or S150 infeed?
The RMS line supply voltage was so high at power on that controlled operation is not possible without exceeding the permissible maximum voltage in the DC link (p0280). The drive raises the fault when 1.5 times the RMS line supply voltage exceeds p0280.
What is stored in r0949 for fault F06300?
The fault value is stored in r0949 as a floating-point number and contains the lowest possible controlled DC link voltage for the line supply voltage presently connected.
How do I fix fault F06300?
Check the line supply voltage, check the maximum DC link voltage (p0280) and increase it if required, compare the actual line voltage with the setting in p0210, and check that the power unit is dimensioned for the line supply voltage actually being used.
How is fault F06300 acknowledged?
Immediately, as soon as the cause has been removed; switching the power supply off and on also acknowledges it. The drive only stays up if the line voltage condition is no longer fulfilled at the next power on.
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 F06xxx group · SINAMICS manuals · Siemens manuals