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Check current operating mode

Navigate to HMI main screen and verify the current mode indicator. System must be in STOP or JOG mode for parameter access.

Use the mode selector key to quickly switch between operational modes

Stop all active programs

Press RESET key followed by mode selection to STOP. Ensure no part programs are running and spindle is stopped.

Ensure workpiece and tooling are in safe position before stopping operations

Access parameter modification

Navigate to Commissioning > Parameters or use direct parameter access via P00 softkey once in appropriate mode.

Parameter write access indicator should show green status in commissioning mode

Check current user access level

Navigate to Startup > Access Authorization and verify current user level. Servo parameters typically require Service level (3) or higher.

Access level is displayed in the status bar of most HMI screens

Login with appropriate credentials

Select higher access level and enter corresponding password. Default service password varies by system configuration.

Document any parameter changes made at elevated access levels

Verify parameter write permissions

Access Commissioning > Drive Parameters and confirm write access is enabled for servo configuration parameters.

Some parameters require DRIVE_ENABLE signal to be active for modification

Check drive status

Navigate to Diagnostics > Drive Diagnosis and verify all servo drives show ready status without fault conditions.

Look for green status indicators on all configured drive objects

Enable commissioning mode

Access Commissioning > Drive Commissioning and activate commissioning mode for the affected drive axis.

Commissioning mode disables normal safety interlocks - ensure area is clear

Verify PROFIBUS/PROFINET communication

Check communication status between NCU and drive modules in Diagnostics > Bus Diagnosis for proper data exchange.

Cycle times should be consistent and within specified ranges for stable communication

Check protection status

Navigate to Diagnostics > System Data and review active protection functions and their current states.

Look for WRITE_PROTECTION or PARAM_LOCK status indicators

Clear active alarms

Review alarm buffer and clear any pending servo or drive-related alarms that may be blocking write access.

Only clear alarms after understanding their root cause

Reset system protection

Perform controlled system reset via Startup > Reset and restart in appropriate mode for parameter modification.

Use warm restart to maintain parameter settings while clearing protection states