Siemens 300720 fault code meaning

Series: SIMODRIVE 611D

Invalid maximum motor speed

servo drive

Meaning: Because of the high maximum motor speed in the drive MD 1401: $MD_MOTOR_MAX_SPEED and the speed controller cycle in MD 1001: $MD_SPEEDCTRL_CYCLE_TIME sufficiently high speeds can occur to cause a format overflow. Example: A motor speed of 480,000 rpm can still be processed without error at a speed controller cycle time of 125 μs.

Possible causes

Source: SINUMERIK 840D/840Di/810D Diagnostics Manual 11/2006 (EN, Siemens official site) 2.3 SIMODRIVE ALARMS