: If testing the drive standalone, set p2030 = 0 (No protocol) and perform a "RAM to ROM" save. Technical Summary Table Default/Action Description p1900 Set to 0 Disables the motor identification routine. p0971 Set to 1
If you do not wish to perform the identification (e.g., during bench testing without a motor), you can disable it via the Siemens Parameter List :
Set (Motor data identification and rotation test: Disabled). siemens fault 0a7991
: Ensure the Profinet/Profibus cable is securely plugged in and the PLC is powered on.
This alarm frequently appears alongside , which indicates a communication timeout with a PLC. : If testing the drive standalone, set p2030
When this code appears, the drive is notifying you that a motor identification routine has been scheduled or is currently running. This routine is essential for the inverter to learn the electrical characteristics of the connected motor (such as resistance and inductance) to ensure precise control.
Apply a (start signal) to initiate the routine. : Ensure the Profinet/Profibus cable is securely plugged
Removes the requirement for motor details for initial testing.