Siemens 300603 fault code meaning
Siemens / 300603
Series: SIMODRIVE 611D
DC link voltage too high
servo drive
Meaning: The current DC link voltage in MD1701:$MD_LINK_VOLTAGE is larger than MD1163: $MD_LINK_VOLTAGE_MAX and MD1165: $MD_DYN_MANAG_ENABLE is activated.
Possible causes
Source: SINUMERIK 840D/840Di/810D Diagnostics Manual 11/2006 (EN, Siemens official site) 2.3 SIMODRIVE ALARMS