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Siemens SINUMERIK Controller
Servo/Axis · Intermediate · 30-120 minutes
Siemens 300007 - Axis drive not present or inactive
This alarm occurs when the axis-specific machine data references a drive logic number that does not exist or is inactive. Correct the machine data settings for the affected axis to resolve it.
300007
Siemens 300007 - Axis drive not present or inactive
Axis drive not present or inactive
In the axis-specific machine data 30110 CTRLOUT_MODULE_NR (this specifies at which drive module the speed setpoint is output) and MD 30220 ENC_MODULE_NR (this specifies the drive module which outputs the encoder actual value for the position control) there is a drive logic number that does not occur in the NCK MD 13010 DRIVE_LOGIC_NR and the machine data 30240 ENC_TYPE and MD 30130 CTRLOUT_TYPE are set to "1" 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.
Root Cause Summary
This alarm occurs when the axis-specific machine data references a drive logic number that does not exist or is inactive. Correct the machine data settings for the affected axis to resolve it.
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
Identify Affected Axis
Note the axis and drive number mentioned in the alarm message.
- 2
Check Machine Data
Access MD 30110 and MD 30220 for the specified axis and verify the drive logic numbers.
- 3
Correct Settings
Update the machine data to reference a valid drive module number and save changes.
- 4
Reset and Test
Clear the alarm, reset the control, and test the axis operation.
Call a technician if:
- ·If machine data corrections do not resolve the alarm
- ·If unsure about valid drive logic numbers or system configuration
Prevention
- Always power down the system before making machine data changes
- Validate machine data settings during setup or after changes
- Document drive module configurations for reference
- Perform backup of machine data before modifications
Common Mistakes
- Entering incorrect drive logic numbers in machine data
- Overlooking inactive drive modules in the system
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