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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 100363 - Password has been changed, please confirm first
SIEMENS alarm 100363 occurs when a servo drive password has been modified and requires user confirmation before the system can proceed with servo operations. This is a security feature in SINUMERIK systems to prevent unauthorized changes to critical servo parameters.
Siemens 840D 100363 - Password has been changed, please confirm first
Password has been changed, please confirm first
Siemens SINUMERIK operator message 100363: Password has been changed, please confirm first. This is an informational message from the SINUMERIK control indicating a system status or operation result that may require operator action.
Root Cause Summary
SIEMENS alarm 100363 occurs when a servo drive password has been modified and requires user confirmation before the system can proceed with servo operations. This is a security feature in SINUMERIK systems to prevent unauthorized changes to critical servo parameters.
Safety
Causes and Fixes
Access servo diagnostics
Navigate to Diagnostics > Hardware > Drives in the HMI to view current servo drive status and password requirements.
Check the drive status display for any password-related indicators before proceeding.
Confirm new password
Go to Commissioning > Drive > Password and enter the new password twice to confirm the change. Use parameter P0010 to set the drive to commissioning mode if needed.
Ensure you have the correct new password before attempting confirmation to avoid lockout.
Reset drive communication
Execute a drive reset using parameter P0970 = 1 or through HMI Diagnostics > Hardware > Drives > Reset to clear the password confirmation requirement.
Monitor parameter r0002 (drive status word) to verify successful password acceptance.
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.
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Always verify with your machine manual or a certified technician before performing service procedures.