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FANUC Controller
Program/G-code · Basic · 5-15 minutes
Fanuc Alarm 053 - TOO MANY ADDRESS COMMANDS
Alarm 053 occurs when a G-code block contains conflicting or redundant address commands for chamfering (G01) or corner rounding (G01) operations. Specifically, the program has specified two or more of the I, J, K, or R addresses in a single block where only one is permitted to define the chamfer distance or corner radius.
053
Fanuc Alarm 053 - TOO MANY ADDRESS COMMANDS
SYSTEM ALARM 53
Fanuc alarm 053: SYSTEM ALARM 53. This alarm indicates a fault condition detected by the Fanuc control. Refer to the alarm number and name to identify the specific system or function involved.
Root Cause Summary
Alarm 053 occurs when a G-code block contains conflicting or redundant address commands for chamfering (G01) or corner rounding (G01) operations. Specifically, the program has specified two or more of the I, J, K, or R addresses in a single block where only one is permitted to define the chamfer distance or corner radius.
Causes and Fixes
- 1
Identify the flagged N-block number displayed with the alarm on the CNC screen. Review the program line in EDIT mode to locate the conflicting addresses.
- 2
Check for chamfering command syntax: For chamfers, only use I (for ,C notation after coordinates) or a single I/J/K value. For corner rounding, use only R followed by the radius value. Remove any duplicate or conflicting address codes.
- 3
Correct the block to contain only ONE chamfer/radius definition address. Example: Change 'G01 X100. Y50. I5. R5.' to either 'G01 X100. Y50. I5.' OR 'G01 X100. Y50. R5.'
- 4
Reset the alarm (RESET button), return to memory/MDI mode, and restart the program from a safe position before the corrected block.
Call a technician if:
- ·Macro program conflicts persist after variable cleanup
- ·Parameter corruption suspected
- ·Alarm occurs with standard G-code programs
Prevention
- Always use single address method for corner operations
- Validate programs with CHECK function before running
- Clear unused macro variables before corner operations
- Use program templates for consistent chamfer/radius syntax
Common Mistakes
- Mixing R and I/J/K in same block
- Copy-pasting code without removing conflicting addresses
- Not clearing macro variables between operations
- Using CAM post-processor with incorrect address filtering
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