What causes Siemens SINUMERIK alarm 61109?

Incorrect _CDIR parameter value in POCKET3 or POCKET4 cycle definition - typically wrong sign or invalid numeric range. Parameter _CDIR not matching tool geometry or machine configuration for the specified pocket cycle. Copied or modified program with _CDIR value incompatible with current workpiece setup or tool orientation. Parameter syntax error or missing decimal point in _CDIR definition within the cycle block.

How do I fix Siemens SINUMERIK alarm 61109?

1. Verify the _CDIR parameter value in the active G-code block against the machine's technical documentation for POCKET3/POCKET4 cycle requirements 2. Check the cutting direction definition matches the tool's actual cutting geometry and machine spindle orientation 3. Review parameter syntax in the program - confirm proper numeric format and that value is within acceptable range for the cycle type 4. Compare the alarm-triggering block with a known working pocket cycle program to identify parameter discrepancies 5. Correct the _CDIR parameter value and re-run the cycle; consult the Siemens 840D/828D programming manual if uncertain about valid range

Siemens SINUMERIK codes

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Siemens SINUMERIK Controller

Parameter · Intermediate · 20-40 minutes

Alarm 61109

Siemens 840D 61109 - Channel Block: Parameter _CDIR incorrectly defined

The value of the parameter for the cutting direction _CDIR has been incorrectly defined. Alarm triggered by following cycles: POCKET3, POCKET4. Remedy: Change parameter _CDIR.

Siemens SINUMERIKParameterIntermediate20-40 minutes

61109

Siemens 840D 61109 - Channel Block: Parameter _CDIR incorrectly defined

Channel Block: Parameter _CDIR incorrectly defined

The value of the parameter for the cutting direction _CDIR has been incorrectly defined. Alarm triggered by following cycles: POCKET3, POCKET4. Remedy: Change parameter _CDIR.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Common Causes

Incorrect _CDIR parameter value in POCKET3 or POCKET4 cycle definition - typically wrong sign or invalid numeric range
Parameter _CDIR not matching tool geometry or machine configuration for the specified pocket cycle
Copied or modified program with _CDIR value incompatible with current workpiece setup or tool orientation
Parameter syntax error or missing decimal point in _CDIR definition within the cycle block

Troubleshooting Steps

1Verify the _CDIR parameter value in the active G-code block against the machine's technical documentation for POCKET3/POCKET4 cycle requirements
2Check the cutting direction definition matches the tool's actual cutting geometry and machine spindle orientation
3Review parameter syntax in the program - confirm proper numeric format and that value is within acceptable range for the cycle type
4Compare the alarm-triggering block with a known working pocket cycle program to identify parameter discrepancies
5Correct the _CDIR parameter value and re-run the cycle; consult the Siemens 840D/828D programming manual if uncertain about valid range

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