Sinumerik Alarm 300515 Axis %1 drive %2 power section heat sink temperature exceeded
Parameters:
%1 = NC axis number
%2 = Drive number
Definitions:
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).
Reactions:
– Mode group not ready.
– Channel not ready.
– Channel not ready.
– NC Start disable in this channel.
– NC Stop on alarm.
– The NC switches to follow-up mode.
– Alarm display.
– Interface signals are set.
Remedy:
Please inform the authorized personnel/service department. Provide better ventilation of the drive modules, e.g. by means of:
• Greater air throughput in the switching cabinet, if necessary cool the ambient air of the 611D modules.
• Avoid numerous acceleration and deceleration operations in rapid sequence by modifying the workpiece programming.
• Incorrect motor/power section dimensioning
• Excessive ambient temperature (see Planning Guide)
• Exceeding of the installation height (see Planning Guide)
• Excessive pulse frequency (see Planning Guide)
• Defective module
• Fan failure
• Observance of the minimum clearance over and under the power section (see Planning Guide)
Program Continuation:
Switch control OFF – ON.
References
- Siemens Diagnostics Guide by Siemens