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Siemens SINUMERIK Controller
Servo/Axis · Intermediate · 30-120 minutes
Siemens 70015 - Channel axis reaches angle on platform
Alarm 70015 indicates that cyclic Cardanic angle monitoring on a rotary platform axis has detected excessive gimbal rotation, exceeding the configured safety limits defined in MD 62126 (minimum threshold) or MD 62127 (maximum threshold). This occurs during contoured motion when the machine axes reach their maximum acceleration, causing the platform to tilt beyond permissible angles and triggering automatic axis deceleration to protect the workpiece and machine geometry.
70015
Siemens 70015 - Channel axis reaches angle on platform
Channel axis reaches angle on platform
Cyclic monitoring of the cardanic angle on the platform detects a violation. The machine axes are decelerated after having reached their max. acceleration. The specified contour is left. indicates the affected limit value. -: MD 62126 was not reached +: MD 62127 was exceeded Control reaction: NC Start disable in this channel. Alarm display. NC Stop on alarm.
Root Cause Summary
Alarm 70015 indicates that cyclic Cardanic angle monitoring on a rotary platform axis has detected excessive gimbal rotation, exceeding the configured safety limits defined in MD 62126 (minimum threshold) or MD 62127 (maximum threshold). This occurs during contoured motion when the machine axes reach their maximum acceleration, causing the platform to tilt beyond permissible angles and triggering automatic axis deceleration to protect the workpiece and machine geometry.
Safety
- Only qualified personnel should diagnose and clear control alarms; follow the machine builder's safety procedures and lockout/tagout where hardware work is required.
Causes and Fixes
- 1
Access Siemens HMI > Diagnostics > Parameters > Machine Data > select axis %2 > verify MD 62126 (minimum Cardanic angle limit) and MD 62127 (maximum Cardanic angle limit) values. Document current settings and compare against machine design documentation for platform load capacity.
Do not modify MD values without engineering approval; incorrect settings can compromise machine safety.
- 2
Cross-reference the alarm message modifier (%3 value shown) against configured limits. If %3 shows '-' the lower limit was violated; if '+' the upper limit was exceeded. Adjust MD 62126 or MD 62127 by ±5-10% increments based on actual platform geometry and load requirements.
- 3
Perform a test cycle using DIN/ISO program with reduced feedrate (30-50% of nominal) to verify Cardanic angle behavior. Monitor actual angle values via NCK > Diagnosis > Measuring Values > Axis-specific Cardanic Angle display during execution.
- 4
If alarm persists after parameter adjustment, confirm MD 62120 (Cardanic angle monitoring enable) is set to 1 (active). If monitoring must remain enabled per safety requirements, escalate to machine builder for kinematic re-calibration.
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