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Code 25060: Axis %1 speed setpoint limitation

Issue Description & Safety Warning

The Siemens SINUMERIK 840D CNC has triggered a critical Axis %1 speed setpoint limitation alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.

Official Troubleshooting Steps

Parameters: %1 = Axis name, spindle number Definitions: The speed setpoint has exceeded its upper limit for a longer period than allowed. The maximum speed setpoint is limited to a certain percentage by the axis-specific MD36210 $MA_CTRLOUT_LIMIT. The input value of 100% corresponds to the rated speed of the motor and hence the rapid traverse velocity (exemplary default value: 840D=110%). For SINAMICS: Drive parameter p1082 also has a limiting effect. If the values are exceeded for a short time, then this is tolerated provided they do not last longer than allowed for in the axis-specific MD36220 $MA_CTRLOU T_LIMIT_TIME. The setpoint is limited during this time to the maximum value that has been set in (MD36210 $MA_CTRLOUT_LIMIT). The alarm can be reprogrammed in the MD11412 $MN_ALARM_REACTION_CHAN_NOREADY (channel not ready). Reaction: Mode group not ready. The NC switches to follow-up mode. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm. Channel not ready. Remedy: Please inform the authorized personnel/service departm ent. This alarm should not occur if the drive controller has been set correctly and the machin ing conditions are those that normally prevail. - Check actual values: Local sluggi shness of the carriage, speed dip by torque surge due to contact with workpiece/tool, travel against fixed obstacle, etc. - Check direction of position contro l: Does the axis continue to rota te without control (not on SIMODRIVE 611D drives)? Program Continuation: Clear alarm with the RESET key in all channel s of this mode group. Restart part program.

Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)

Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.

About Siemens SINUMERIK 840D CNC Alarms

Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 25060 on the SINUMERIK 840D CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Siemens's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.

Complete Alarm List: 4014 Siemens SINUMERIK 840D CNC codes.

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