Siemens 300515 fault code meaning
Siemens / 300515
Series: SIMODRIVE 611D
Power unit heatsink temperature out of range
servo drive
Meaning: The temperature of the power section is acquired from a temperature switch on the heatsink. 20 seconds after the heatsink temperature warning, drive shutdown is initiated immediately in order to avoid thermal damage to the power section (regenerative stop).
Possible causes
Source: SINUMERIK 840D/840Di/810D Diagnostics Manual 11/2006 (EN, Siemens official site) 2.3 SIMODRIVE ALARMS