Siemens 820 fault code meaning
Siemens / 820
Series: SIMODRIVE 611U
Power module in i2t limiting
servo drive
Meaning: The power module is being operated too long above the permissible load limit.
Possible causes
Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3