F1001 fault in siemens sinamics V90 drive indicates a FloatingPoint Exception. This means the internal processor attempted an invalid mathematical operation, usually caused by a firmware bug.
Cause:
An exception occurred during an operation with the FloatingPoint data type.
Remedy:
- Carry out a POWER ON (power off/on) for all components.
- Upgrade firmware to the latest version.
- Contact the Hotline.
