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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 300606 - Axis drive flux controller at limit
This alarm indicates the flux setpoint cannot be achieved due to incorrect motor data or mismatched settings, requiring verification and correction of motor parameters or program settings.
Siemens 840D 300606 - Axis drive flux controller at limit
Axis drive flux controller at limit
Siemens SINAMICS drive alarm 300606: Axis drive flux controller at limit. This alarm indicates a fault condition in the SINAMICS servo drive system. Refer to the Siemens SINAMICS fault list documentation for the complete remedy.
Root Cause Summary
This alarm indicates the flux setpoint cannot be achieved due to incorrect motor data or mismatched settings, requiring verification and correction of motor parameters or program settings.
Safety
Causes and Fixes
SAFETY: Power down and lockout
Turn off main power, apply lockout/tagout procedures, and wait for capacitor discharge before accessing any electrical components.
Check alarm details
Note the axis and drive number in the alarm message for the affected component.
Verify motor data
Compare motor data in the program/control settings with the motor nameplate or documentation.
Correct mismatch
Update motor parameters or connection type in the control settings and restart the program.
Call a technician if:
Prevention
Common Mistakes
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
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Always verify with your machine manual or a certified technician before performing service procedures.