Siemens 300000 fault code meaning
Siemens / 300000
Series: SIMODRIVE 611D
Hardware drive bus
servo drive
Meaning: The DCM (Drive Communication Master, an ASIC on the NCU module that takes control of the drive bus) has not signaled when powering up the drive. In the 840D, a hardware fault is the possible cause of this error. (For the FM-NC, an incorrect configuration is also possible via the NCK MD 13010 DRIVE_LOGIC_NR).
Possible causes
Source: SINUMERIK 840D/840Di/810D Diagnostics Manual 11/2006 (EN, Siemens official site) 2.3 SIMODRIVE ALARMS