What causes Siemens SINUMERIK alarm 61107?

Incorrect sign convention for first drilling depth (RTP) relative to total drilling depth (DP) in CYCLE83 parameters. First drilling depth value has opposite polarity compared to the direction of total drilling depth. Misalignment between coordinate system definition and drilling depth parameters. Incorrect G-code syntax or parameter order in the drilling cycle call.

How do I fix Siemens SINUMERIK alarm 61107?

1. Verify CYCLE83 call syntax and parameter order; confirm RTP (first drilling depth) and DP (total drilling depth) have consistent sign conventions relative to the active work plane 2. Review the drilling direction: if DP is negative (downward), RTP must also be negative; if DP is positive, RTP must be positive 3. Check active coordinate system and tool offset direction; confirm the drilling axis polarity matches the intended cutting direction 4. Examine the part program block at the reported location; correct the sign of the first drilling depth parameter to match the total drilling depth direction 5. Test the corrected cycle on a single hole with dry run enabled before resuming full production

Siemens SINUMERIK codes

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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 20-45 minutes

Alarm 61107

Siemens 840D 61107 - Channel block: First drilling depth incorrectly defined

First drilling depth is in the opposite direction to the total drilling depth. Alarm triggered by following cycle: CYCLE83.

Siemens SINUMERIKServo/AxisIntermediate20-45 minutes

61107

Siemens 840D 61107 - Channel block: First drilling depth incorrectly defined

Channel block: First drilling depth incorrectly defined

First drilling depth is in the opposite direction to the total drilling depth. Alarm triggered by following cycle: CYCLE83.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Common Causes

Incorrect sign convention for first drilling depth (RTP) relative to total drilling depth (DP) in CYCLE83 parameters
First drilling depth value has opposite polarity compared to the direction of total drilling depth
Misalignment between coordinate system definition and drilling depth parameters
Incorrect G-code syntax or parameter order in the drilling cycle call

Troubleshooting Steps

1Verify CYCLE83 call syntax and parameter order; confirm RTP (first drilling depth) and DP (total drilling depth) have consistent sign conventions relative to the active work plane
2Review the drilling direction: if DP is negative (downward), RTP must also be negative; if DP is positive, RTP must be positive
3Check active coordinate system and tool offset direction; confirm the drilling axis polarity matches the intended cutting direction
4Examine the part program block at the reported location; correct the sign of the first drilling depth parameter to match the total drilling depth direction
5Test the corrected cycle on a single hole with dry run enabled before resuming full production

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