PS000

Navigate to SYSTEM > PARAM screen and verify which parameters were recently modified. Look for parameters with '#' symbol indicating power-off required status. Common PWE parameters include P1020 (axis number), P1815 (stored stroke check), P4000-4005 (serial spindle), P900-910 (I/O Link).

Record all modified parameter numbers and new values for documentation. Cross-reference with parameter manual to confirm settings are correct before power cycle.

Ensure machine is in safe position with all axes parked and spindle stopped. Clear all workpiece and tooling from work envelope if axis configuration changes were made.

Do not power cycle during active machining operations or with workpiece loaded if axis/servo parameters were changed

Turn CNC control power OFF using main circuit breaker or E-Stop, wait minimum 10 seconds for capacitor discharge, then power ON. Verify alarm clears and check DIAGNOSIS > PARAMETER screen to confirm new values are active. Test axis movement and machine functionality after restart.

Navigate to SYSTEM > PARAM and check servo parameters P2000-2999 (axis motor parameters), P2020 (motor serial number), P2023 (motor type), P2040-2048 (encoder parameters). For spindle check P4001 (spindle motor), P4020-4026 (gear ratios), P4130-4132 (orientation parameters).

Verify amplifier DIP switch settings match new parameter configuration if motor type or encoder type was changed. Consult amplifier module label and αi/βi series amplifier manual for correct switch positions.

Incorrect motor/encoder parameter combination can cause servo alarm (SV0401, SV0441) or runaway condition after restart

Power down CNC completely, wait 30 seconds for full amplifier capacitor discharge. Power ON and monitor DIAGNOSIS > SERVO > AMPLIFIER screen for amplifier recognition and αAL/βAL LED status during boot sequence.

After successful boot, perform reference return on all axes. Execute manual jog test at 1% rapid override. Check servo load meters at DIAGNOSIS > SERVO > LOAD METER to verify normal torque values (typically <30% at standstill).

Navigate to PMC > PARAM screen and identify changed parameters in P3000 series (PMC configuration) or SYSTEM > PARAM for P1800-1899 (dual check safety, stored stroke limit enable P1815). Check I/O Link assignment P900-910 if I/O modules were added or changed.

If safety parameters (P1800 series) were modified, verify changes with machine tool builder documentation and safety circuit diagrams. Document previous and new values for safety compliance records.

Improper safety parameter settings can disable safety functions or cause machine to fail safety certification

Execute complete power cycle: Turn OFF main power, wait minimum 15 seconds. Turn ON and observe PMC > STATUS screen during boot to confirm PMC starts normally without PMCAL000 or PMCAL099 alarms.

After restart verify I/O status at PMC > DGN > I/O or DIAGNOSIS > I/O screen. Test all safety interlocks and E-Stop circuits. If stored stroke check was enabled (P1815), execute reference return and set stroke limits via G22/G28 or MDI parameter input.