: Ensure the Profinet/Profibus cable is securely plugged in and the PLC is powered on.
The most direct fix is to allow the drive to perform the check.
Removes the requirement for motor details for initial testing.
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.
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 :
The Siemens fault code (often searched as 0a7991 ) specifically indicates that Motor Data Identification is activated . This is not a critical equipment failure but rather a status alarm triggered during the commissioning or configuration phase of Siemens SINAMICS drives , such as the G120, G120C, and G150 series. Understanding Alarm A07991
: Ensure the Profinet/Profibus cable is securely plugged in and the PLC is powered on.
The most direct fix is to allow the drive to perform the check. siemens fault 0a7991
Removes the requirement for motor details for initial testing. : Ensure the Profinet/Profibus cable is securely plugged
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. When this code appears, the drive is notifying
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 :
The Siemens fault code (often searched as 0a7991 ) specifically indicates that Motor Data Identification is activated . This is not a critical equipment failure but rather a status alarm triggered during the commissioning or configuration phase of Siemens SINAMICS drives , such as the G120, G120C, and G150 series. Understanding Alarm A07991