Siemens 722 fault code meaning

Series: SIMODRIVE 611U

Changeover speed/velocity too low

servo drive

Meaning: For the selected setting of P1466, the induced voltage is too low in the lower speed range in order to be able to reliably guarantee sensorless operation. The induced voltage must be at least 40 Volt (phase-tophase, RMS) at the particular speed.

Possible causes

Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3