What it means
F07438 means that the actual value of the free technology controller 2 has reached one of its limits. Which signal feeds this actual value is selected in the connector input p11264. Depending on the drive configuration, the drive can also signal this condition as an alarm (A) instead of a fault.
Why it appears
- Fault value 1: the actual value of the free technology controller 2 has reached the upper limit.
- Fault value 2: the actual value of the free technology controller 2 has reached the lower limit.
What to check
- Adapt the limit settings p11267 and p11268 so that they match the actual value signal.
- Check the scaling of the actual value signal.
- Check the signal source set for the actual value in p11264.
Reading the message value
- The drive stores the fault value in r0949; read it as a decimal number.
- 1: the actual value has reached the upper limit.
- 2: the actual value has reached the lower limit.
Parameters the manual names
- p11264 — connector input that selects the signal source of the free technology controller 2 actual value; check this setting as part of the remedy.
- p11267 — upper limit of the free technology controller 2 actual value; adapt it to the actual value signal.
- p11268 — lower limit of the free technology controller 2 actual value; adapt it to the actual value signal.
- r0949 — fault value; read as a decimal number it shows whether the upper (1) or the lower (2) limit was reached.
Acknowledging and restarting
Rectify the cause first; the fault can then be acknowledged immediately, and the drive can be restarted afterwards. How the drive responds to this condition is configurable — the table on this page lists the possible reactions and the acknowledgment.
The same on every family
Every manual that describes F07438 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G120XA | OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) | IMMEDIATELY | — | — | SINAMICS G120XA PN converter · p. 1131 |
Questions technicians ask
What does fault F07438 in the SINAMICS G120XA mean?
The actual value of the free technology controller 2 has reached its limit. Fault value 1 means the upper limit, fault value 2 the lower limit.
How do I fix fault F07438?
Adapt the limits p11267 and p11268 to the actual value signal, check the scaling of the signal, and check the signal source set in p11264. Then acknowledge the fault and restart the drive.
Can F07438 also appear as an alarm?
Yes. Depending on the drive configuration, the drive can output the same condition as an alarm instead of a fault.
Where can I read which limit was reached?
In the fault value r0949, interpreted as a decimal number: 1 means the upper limit, 2 the lower limit.
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 F07xxx group · SINAMICS manuals · Siemens manuals