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Siemens SINUMERIK Controller
Servo/Axis · Intermediate · 20-45 minutes
Siemens 840D 61366 - Channel block: Direction of rotation for tool measurement with
The alarm is triggerd by the following cycles: CYCLE971. Permissible values for data field _CM[5] in GUD6 block are 3 (corresponds to M3) or 4 (corresponds to M4). Remedy: Check parameter _CM[5] in GUD6.
61366
Siemens 840D 61366 - Channel block: Direction of rotation for tool measurement with
Channel block: Direction of rotation for tool measurement with
The alarm is triggerd by the following cycles: CYCLE971. Permissible values for data field _CM[5] in GUD6 block are 3 (corresponds to M3) or 4 (corresponds to M4). Remedy: Check parameter _CM[5] in GUD6.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Common Causes
- Parameter _CM[5] in GUD6 block contains invalid value (not 3 or 4)
- CYCLE971 configured with incorrect spindle direction constant
- GUD6 block parameters corrupted or improperly initialized
- Spindle direction value set to unrecognized integer outside M3/M4 range
Troubleshooting Steps
- 1Navigate to GUD6 block in active part program and verify _CM[5] parameter value is either 3 (M3 clockwise) or 4 (M4 counterclockwise)
- 2If _CM[5] contains invalid value, correct to appropriate value (3 or 4) and reload program
- 3Check CYCLE971 macro definition in machine parameter set to ensure spindle direction constants are properly defined
- 4Verify GUD6 block initialization and variable declarations at program start, reload machine defaults if necessary
- 5Test CYCLE971 execution with corrected parameters to confirm alarm clears
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