axismd.ai
Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 101137 - MDx141 MAGNETIZING_REACTANCE = 0
Alarm 101137 indicates that the magnetizing reactance parameter (MD141) for a motor has been set to zero or is invalid. This parameter is critical for the field-oriented control of induction motors in SIEMENS SINUMERIK 840D systems. A zero value prevents proper motor flux calculation and control, triggering this alarm during motor data verification or commissioning.
101137
Siemens 840D 101137 - MDx141 MAGNETIZING_REACTANCE = 0
MDx141 MAGNETIZING_REACTANCE = 0
Siemens SINUMERIK operator message 101137: MDx141 MAGNETIZING_REACTANCE = 0. This is an informational message from the SINUMERIK control indicating a system status or operation result that may require operator action.
Root Cause Summary
Alarm 101137 indicates that the magnetizing reactance parameter (MD141) for a motor has been set to zero or is invalid. This parameter is critical for the field-oriented control of induction motors in SIEMENS SINUMERIK 840D systems. A zero value prevents proper motor flux calculation and control, triggering this alarm during motor data verification or commissioning.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Access drive parameters via HMI: Select 'Commissioning' > 'Drive' > select affected axis/spindle.
- 2
Navigate to motor data section and locate MD141 (MAGNETIZING_REACTANCE) parameter.
- 3
Enter the correct magnetizing reactance value from the motor nameplate data sheet or manufacturer specifications (typically in mH or H).
Ensure the value matches the actual motor installed. Incorrect values can damage the motor or drive.
- 4
Save parameters, perform NCK reset (Power On), and execute motor data calculation or identification routine if available.
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
Get machine-aware diagnosis
AxisMD logs alarms against your actual machines, tracks patterns, and gives AI context your manual doesn't have.
Start freeWas this guide helpful?
Always verify with your machine manual or a certified technician before performing service procedures.