What causes FANUC alarm 1013?

Machine system or function indicated by the alarm name has detected a fault. Control parameter or configuration error related to the alarm condition. Hardware component fault on the CNC or machine. Part program error or illegal operation for the indicated function. Machine interlock or safety condition not satisfied.

How do I fix FANUC alarm 1013?

1. Note the alarm number and check the Fanuc alarm screen for any sub-code or additional details. 2. Identify the specific machine system or function from the alarm name. 3. Power cycle the machine to clear transient faults. 4. Consult the Fanuc parameter or operator manual for alarm 1013 specific remedy. 5. Contact Fanuc service if the alarm persists after basic troubleshooting.

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FANUC Controller

Program/G-code · Basic · 10-20 minutes

Alarm 1013

Fanuc Alarm 1013 - ILLEGAL POS. OF PROGRAM NO.

Fanuc alarm 1013 occurs when a program number (O-code) or sequence number (N-code) is specified in an invalid location within the NC program. This most commonly happens after macro statements (G65, G66), within macro variable assignments, or after certain preparatory functions where these addresses are not permitted according to Fanuc macro executor rules.

FANUCProgram/G-codeBasic10-20 minutes

1013

Fanuc Alarm 1013 - ILLEGAL POS. OF PROGRAM NO.

SYSTEM ALARM 1013

Root Cause Summary

Fanuc alarm 1013 occurs when a program number (O-code) or sequence number (N-code) is specified in an invalid location within the NC program. This most commonly happens after macro statements (G65, G66), within macro variable assignments, or after certain preparatory functions where these addresses are not permitted according to Fanuc macro executor rules.

Causes and Fixes

1
Display the NC program on the CNC and identify the exact line triggering the alarm. Press RESET, then navigate to EDIT mode, cursor to the program block shown in the alarm history (ALARM > HISTORY). Look for O or N codes following G65, G66, or #variable statements.
2
Check if an N-code (sequence number) appears on the same line as a macro call statement. Example: 'G65 P9010 N100 A10.0' is illegal. Move the N-code to a separate line or remove it entirely from macro call blocks.
3
Verify parameter 3202 (macro statement specification) is set correctly. Navigate to SYSTEM > PARAM > search for 3202. Standard setting is 0 for conventional macro format. Incorrect settings may cause parser conflicts with O/N address interpretation.
Changing parameter 3202 requires parameter write enable (PWE) and may affect all macro programs. Consult machine builder documentation before modification.
4
Correct the program by removing the O or N address from the invalid location, or insert an EOB (end of block) before the O/N code. Re-run the program in single block mode (SBL button) to verify resolution.

DIY Feasiblehigh confidence

Call a technician if:

·Parameter corruption suspected
·Macro compiler errors persist
·System software issues

Prevention

Always validate program syntax before loading into control
Use consistent program structure with proper O-address placement
Implement program templates for macro calls and subprograms
Regular backup of working programs to prevent corruption issues

Common Mistakes

Placing O-address on same line as macro call
Using sequence numbers within conditional skip blocks
Multiple O-addresses in single program header
Incorrect subprogram call syntax with embedded O-addresses

Related Alarms

1014 1015 1010 1011

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