What it means
F07048 "Drive: Incorrect characteristic measurement" is raised when a fault occurs while the drive is performing the characteristic measurement. The drive stores the reason as a fault value in r0949, which is interpreted as a decimal number. For fault value 1, the speed threshold for DQ saturation was not reached.
Why it appears
- A fault occurred during the characteristic measurement.
- Fault value 1: the speed threshold for DQ saturation was not reached.
What to check
- Read the fault value in r0949 and interpret it as a decimal number to identify which fault occurred during the characteristic measurement.
- If the fault value is 1, check the closed-loop load machine control.
Reading the message value
- The drive enters the fault value in r0949; interpret it as a decimal number.
- 1: Speed threshold for DQ saturation not reached.
Parameters the manual names
- r0949 — read the fault value here (decimal) to find out why the characteristic measurement failed; for this code the value 1 means the speed threshold for DQ saturation was not reached.
Acknowledging and restarting
Acknowledge the fault immediately. Remove the cause first — for fault value 1, check the closed-loop load machine control — then acknowledge the fault and restart the drive.
The same on every family
Every manual that describes F07048 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 (NONE, OFF1) | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | Motor | SINAMICS S120, S150 List Manual · p. 2781 |
The drives this code lives on
F07048 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does SINAMICS fault F07048 mean?
The drive has detected a fault during the characteristic measurement. The fault value in r0949 (interpret decimal) tells you what failed; value 1 means the speed threshold for DQ saturation was not reached.
How do I clear fault F07048 with fault value 1?
Check the closed-loop load machine control — that is the remedy the manual gives for fault value 1. Then acknowledge the fault immediately and restart the drive.
Where can I see why the characteristic measurement failed with F07048?
Read r0949 and interpret the value as a decimal number; for this fault the value 1 stands for "Speed threshold for DQ saturation not reached".
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