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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-120 minutes

Alarm 301719

Siemens 301719 - Axis drive power section data incomplete

This alarm occurs when the power section data for a drive is incomplete, typically due to missing or incorrect machine data (MD) settings for derating factors. Correct the relevant MD parameters to resolve it.

Siemens SINUMERIKServo/AxisIntermediate30-120 minutes

301719

Q: How do I fix Siemens SINUMERIK alarm 301719?

1. Carry out new start-up with power section selection or enter the following data: - Operation of a power section with an FDD motor requires: - MD 1178 $MD_INVERTER_DERATING_SYN (derating factor at 8kHz) - Operation of a power section with an MSD motor requires: - MD 1179 $MD_INVERTER_DERATING_ASYN (derating factor at 8kHz) - Operation of a power section with a PE MSD motor requires: - MD 1179 $MD_INVERTER_DERATING_ASYN (derating factor at 8kHz) - MD 1175 $MD_INVERTER_THERM_CURR_ASYN (limit current power section for PE MSD) - MD 1177 $MD_INVERTER_RATED_CURR_ASYN (limit current power section for PE MSD). 2. Switch control OFF - ON. 2-779

Siemens 301719 - Axis drive power section data incomplete

Axis drive power section data incomplete

The data for the power section are incomplete: - Operation of a power section with an FDD motor requires: MD 1178 $MD_INVERTER_DERATING_SYN (derating factor at 8kHz) - Operation of a power section with an MSD motor requires: MD 1179 $MD_INVERTER_DERATING_ASYN (derating factor at 8kHz) - Operation of a power section with a PE MSD motor requires: MD 1179 $MD_INVERTER_DERATING_ASYN (derating factor at 8kHz) - MD 1175 $MD_INVERTER_THERM_CURR_ASYN (limit current power section for PE MSD) - MD 1177 $MD_INVERTER_RATED_CURR_ASYN (limit current power section for PE MSD) Control reaction: Mode group not ready. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.

Root Cause Summary

Safety

Drive/power/encoder circuit: hazardous voltages may remain in the DC link after power-off. Lock out / tag out, wait for discharge per the drive documentation, and use qualified personnel only.

Causes and Fixes

1
Check alarm details
Note the axis and drive number in the alarm message to identify the affected component.
2
Verify machine data
Access MD 1178 and MD 1179 in the control parameters and ensure correct derating values are set for 8kHz operation.
3
Save and restart
Save the corrected parameters, reset the alarm, and restart the system to apply changes.

DIY Feasiblehigh confidence

Call a technician if:

·If the alarm persists after correcting machine data
·If unsure about correct derating values or motor configuration

Prevention

Double-check machine data settings during commissioning
Document motor and power section configurations for reference

Common Mistakes

Overlooking the specific axis/drive in the alarm message
Entering incorrect derating values in MD parameters

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