axismd.ai
Siemens SINUMERIK Controller
Servo/Axis · Intermediate · 30-120 minutes
Siemens 300731 - Axis drive rated power less than or equal to zero
The value in MD 1130: $MD_MOTOR_NOMINAL_POWER (rated motor power) is less than or equal to zero Control reaction: NC not ready. The NC switches to follow-up mode. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.
300731
Siemens 300731 - Axis drive rated power less than or equal to zero
Axis drive rated power less than or equal to zero
The value in MD 1130: $MD_MOTOR_NOMINAL_POWER (rated motor power) is less than or equal to zero Control reaction: NC not ready. The NC switches to follow-up mode. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.
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.
Common Causes
- The value in MD 1130: $MD_MOTOR_NOMINAL_POWER (rated motor power) is less than or equal to zero
Troubleshooting Steps
- 1Please inform the authorized personnel/service department.
- 2For standard motors: Reset the drive (delete the bootfile) and repeat the startup.
- 3For third-party motors: Check and, if necessary, refer to the motor data sheet to correct MD 1130: $MD_MOTOR_NOMINAL_POWER (rated motor power).
- 4Switch control OFF - ON
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.