Siemens SINAMICS V20 VFD
Siemens SINAMICS V20 VFD code F41: Motor data identification failure
The motor data identification process has failed, which prevents the drive from starting the booth equipment.
- Code
- F41
- Name
- Motor data identification failure
- Controller
- Siemens SINAMICS V20 VFD
- Type
- Setup or parameter fault
- What it does
- Fault: the equipment trips and stops
- Risk
- YELLOW Booth plays by its own rules
- Reset
- Needs a manual reset
- Source
- The manufacturer's manual (subscribers see which manual and page)
Updated November 4, 2026
How to fix it
Subscribers get:
- What to do next, in plain words
- What the manual says to do, and the page it is on
- The 5 common causes listed for this code
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does Siemens SINAMICS V20 VFD code F41 mean?
The motor data identification process has failed, which prevents the drive from starting the booth equipment.
Is Siemens SINAMICS V20 VFD code F41 dangerous?
It is graded yellow: not hard, but a booth does it differently than the gear most techs know, so follow the checks in order.
How do I fix Siemens SINAMICS V20 VFD code F41?
The manual's fix and the step by step check for this code are in WERCS Diagnose, plans from $49 a month. For help right now, WERCS answers 24/7 at (877) 489-3727.
Other Siemens SINAMICS V20 VFD codes
F12 · Converter temperature signal lostF20 · DC ripple too highF23 · Output current ripple too highF35 · Maximum number of auto restart attempts F51 · Parameter EEPROM faultF52 · Converter software faultF60 · Asic timeoutF61 · SD card parameter cloning failedF62 · Parameter cloning contents invalidF63 · Parameter cloning contents incompatible