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Siemens SINUMERIK Controller
Overtravel/Limit · Intermediate · 15 minutes - 2 hours
Siemens 10630 - Block axis at working area limit
SIEMENS alarm 10630 occurs when an axis fails to reach its commanded position within the tolerance band defined by MD36010 before the positioning monitoring timer MD36060 expires. This protective alarm prevents potential crashes by detecting sluggish axis response, servo tuning issues, or mechanical binding that prevents proper positioning.
10630
Siemens 10630 - Block axis at working area limit
Block axis at working area limit
The specified axis violates the working area limitation. This is recognized only in the main run either because the minimum axis values could not be measured before the transformation or because there is a motion overlay Control reaction: Local alarm reaction. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm at block end.
Root Cause Summary
SIEMENS alarm 10630 occurs when an axis fails to reach its commanded position within the tolerance band defined by MD36010 before the positioning monitoring timer MD36060 expires. This protective alarm prevents potential crashes by detecting sluggish axis response, servo tuning issues, or mechanical binding that prevents proper positioning.
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
Check Current Servo Parameters
Navigate to HMI > Commissioning > Drive > Servo and review current KV, TN, and TV values for the affected axis.
Compare values against machine documentation baseline settings
- 2
Perform Servo Optimization
Use HMI > Commissioning > Drive > Optimization to run automatic servo tuning sequence, or manually adjust MD32200 (KV factor) starting with 50% of current value.
Ensure axis has adequate clearance before running optimization
- 3
Verify Following Error
Monitor actual following error in HMI > Diagnostics > Drive > Actual Values and confirm it stays within MD36200 (maximum following error) limits during moves.
- 4
Test Positioning Performance
Execute test moves and verify positioning time using HMI > Diagnostics > NCK > Channel > Axis to confirm settling within MD36060 timeframe.
Call a technician if:
- ·Encoder replacement required
- ·Major mechanical repairs needed
- ·Drive hardware failure suspected
Prevention
- Regular servo optimization
- Preventive mechanical maintenance
- Monitor drive load trends
- Maintain proper lubrication schedules
Common Mistakes
- Adjusting MD36010 without understanding machine capability
- Ignoring mechanical wear indicators
- Skipping encoder signal quality checks
- Not documenting baseline servo parameters
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