Applicable Systems
Series 0i
Series 16/18/21
Alpha
Beta
Symptoms
The DO loop number n is outside the valid range (1 to 3).
Possible Causes
- The DO statement specifies a nesting level number outside 1-3.
- Incorrect nesting level in the WHILE statement.
Troubleshooting Steps
- Step 1: Check the DO level number in the macro.
Invalid level identified. - Step 2: Use a DO level between 1 and 3.
Macro loop executes at the correct level.
How to Reset
Correct the DO level and reset to clear the alarm.
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Source: Fanuc 0i/0iMate Alarm Code List, FANUC Corporation
Category: CNC
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