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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 101002 - Password is not valid !
Alarm 101002 occurs when an incorrect password is entered while attempting to access password-protected functions, machine data, or PLC areas on the SINUMERIK 840D system. This is a security feature that prevents unauthorized access to critical system parameters and configurations.
101002
Siemens 840D 101002 - Password is not valid !
Password is not valid !
Siemens SINUMERIK message 101002: Password is not valid!. This is an operator information message from the SINUMERIK control. Note the complete message text as it may contain important parameter values.
Root Cause Summary
Alarm 101002 occurs when an incorrect password is entered while attempting to access password-protected functions, machine data, or PLC areas on the SINUMERIK 840D system. This is a security feature that prevents unauthorized access to critical system parameters and configurations.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Verify caps lock is OFF and num lock status matches expected keyboard layout before re-entering password.
- 2
Re-enter the password carefully, ensuring correct case sensitivity and character sequence for the desired access level.
- 3
If password is unknown, contact the machine tool builder or system administrator for the correct access level password.
- 4
Document the correct password in secure company records to prevent future lockouts.
Never share passwords with unauthorized personnel or write them in publicly visible locations
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Always verify with your machine manual or a certified technician before performing service procedures.