Siemens F064 fault code meaning

Series: 6RA70

The watchdog timer has triggered a reset.

DC drive

Meaning: (Valid in all operating states.) An internal microprocessor hardware counter monitors whether the program for calculating firing pulses is executed at least once every 14ms (on average, the program executes every 2.7 to 3.3ms). If this is not the case, the counter triggers a reset, after which F064 is displayed. Possible fault causes:

Possible causes

Source: 6ra70_c P436