What causes Siemens SINUMERIK alarm 300752?

SINAMICS drive hardware fault requiring investigation. Drive parameter configuration error. Axis motor or feedback system fault triggering drive protection. Communication fault on the drive bus. Power supply issue affecting the drive module.

How do I fix Siemens SINUMERIK alarm 300752?

1. Check the SINAMICS drive for active fault codes in the diagnostics screen. 2. Power cycle the machine to clear transient faults. 3. Review SINAMICS parameters for the affected drive axis. 4. Check the SINUMERIK axis diagnostics for related NC alarms. 5. Consult the Siemens SINAMICS alarm manual for alarm 300752 complete remedy.

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Siemens SINUMERIK Controller

Program/G-code · Intermediate · 30-120 minutes

Alarm 300752

Siemens 840D 300752 - Axis drive blocking frequency of setpoint current filter too high

This alarm occurs when the blocking frequency of a current setpoint filter exceeds the allowable limit due to incorrect machine data or parameter settings. Correct the related machine data to resolve it.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

300752

Siemens 840D 300752 - Axis drive blocking frequency of setpoint current filter too high

Axis drive blocking frequency of setpoint current filter too high

Root Cause Summary

This alarm occurs when the blocking frequency of a current setpoint filter exceeds the allowable limit due to incorrect machine data or parameter settings. Correct the related machine data to resolve it.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Check Machine Data
Access the machine data (MD 1000) for the specified axis and drive via the control panel.
2
Adjust Frequency Value
Ensure the blocking frequency is less than the reciprocal of 2 current controller cycles (1/(2*MD1000*31.25µs)).
3
Reset and Test
Save changes, reset the alarm, and test the program to confirm resolution.

DIY Feasiblehigh confidence

Call a technician if:

·If machine data adjustments do not resolve the issue
·If unsure about correct MD values for the system

Prevention

Validate machine data settings before running programs
Use simulation to catch parameter issues early

Common Mistakes

Overlooking specific axis/drive mentioned in alarm
Incorrectly calculating allowable frequency limits

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