Siemens Fault 0a7991 Best -

: Setting this to 1 (identification at standstill) or 2 (rotating measurement).

: Always perform a "RAM to ROM" save after changing parameters to ensure they persist through a power cycle. Check Control Mode is set appropriately for your application (e.g., for V/f standard control). Factory Reset siemens fault 0a7991 best

A hidden gem: 0A7991 frequently appears after a firmware update or when using an older Starter/TIA Portal version. : Setting this to 1 (identification at standstill)