
axismd.ai
Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 100153 - USB device no longer available, from external source no
SIEMENS alarm 100153 occurs when a USB device becomes unavailable during program execution from an external source. This typically happens when USB storage devices are disconnected during active program transfer or when USB communication is interrupted while the SINUMERIK system is accessing external program files.
Siemens 840D 100153 - USB device no longer available, from external source no
USB device no longer available, from external source no
Siemens SINUMERIK alarm 100153: USB device no longer available, from external source no. This alarm indicates a required configuration element, parameter, or program component is missing or has not been set up.
Root Cause Summary
SIEMENS alarm 100153 occurs when a USB device becomes unavailable during program execution from an external source. This typically happens when USB storage devices are disconnected during active program transfer or when USB communication is interrupted while the SINUMERIK system is accessing external program files.
Safety
Causes and Fixes
Check USB device connection
Verify USB device is properly inserted into the SINUMERIK USB port and LED indicators show active connection.
Use only industrial-grade USB devices rated for CNC environments to prevent connection issues.
Reset alarm and reconnect USB
Press RESET key, then reinsert USB device and wait for SINUMERIK to recognize the device in the file manager.
Ensure machine is in safe position before resetting alarms.
Restart program execution
Navigate to Program Manager, select the external program source, and restart execution from the beginning or last safe position.
Consider copying frequently used programs to internal memory to avoid USB dependency.
Call a technician if:
Prevention
Common Mistakes
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
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.