Siemens F7220 fault code meaning
Siemens / F7220
Series: V90
Drive: Missing PLC master control
servo drive
Meaning: The "Control via PLC" signal is missing during operation. The "Control via PLC" signal input is incorrect. The higher-level control system removed the "Control via PLC" signal. Data transmission via the fieldbus (master/drive) has been interrupted.
Possible causes
Source: SINAMICS V90 PROFINET, SIMOTICS S-1FL6 Operating Instructions P371