Siemens F01664 fault code meaning
Siemens / F01664
Series: G130-G150
SI P1 (CU): No auto firmware upgrade
converter
Meaning: At start, the "Auto firmware upgrade" function was found to be disabled (p7826 = 1). However, different versions cannot be mixed when safety functions are enabled, so an auto firmware upgrade or downgrade must be performed.
Possible causes
Source: SINAMICS G130_G150 P1505
Series: S110
SI CU: No auto firmware upgrade
servo drive
Meaning: At start, the "Auto firmware upgrade" function was found to be disabled (p7826 = 1). However, different versions cannot be mixed when safety functions are enabled, so an auto firmware upgrade or downgrade must be performed.
Possible causes
Source: SINAMICS S110 P962