2534

Common Causes

• Machine has no long bore bar specification
• G269 commanded during a fixed cycle, LAP cycle, slope processing or W-axis control mode
• G269 commanded without Nose-R correction mode or in a mirror/COPY coordinate mode
• T1/T3 stepping, B-axis not in axial mode or clamped, Z/X/YS axes out of the permitted turn range
• LBB attached without the auxiliary tool fitted

Troubleshooting Steps

1. 1Read the code number shown with the alarm: code 1 = Machine has no long bore bar specification.; code 2 = Commanded during a fixed cycle.; code 3 = Commanded without Nose-R correction mode.; code 4 = Commanded during the LAP cycle.; code 5 = Commanded in slope processing mode.; code 6 = Commanded in W-axis control mode.; code 7 = Commanded on the X-axis mirror image coordinate system.; code 8 = Commanded in coordinate translation, rotational transfer or COPY mode.
2. 2Read the code to find the blocking condition: 1 no LBB specification; 2 fixed cycle active; 3 no Nose-R correction mode; 4 LAP cycle; 5 slope processing; 6 W-axis control mode; 7 X-axis mirror image; 8 coordinate translation/rotation/COPY mode; 9 tailstock with swinging stop connected.
3. 3For codes 101-109 check machine positions: 101 T1/T3 stepping over directed; 102 not B axial mode; 103 B axis not unclamped; 104 Z axis outside the tool-post turn OK range; 105 X axis not at plus variable limit; 106 YS axis not at spindle center; 107 commanded in X or Z axis; 108 commanded with a G-code other than G00/G01; 109 LBB attached without auxiliary tool.
4. 4For mode codes 1-9, cancel the conflicting cycle or mode (fixed cycle, LAP, slope, W-axis, mirror, COPY) or fit the required specification before issuing G269.
5. 5For position codes 101-109, move the B axis, Z axis, X axis and YS axis into the permitted state, unclamp the B axis and use only G00/G01 with the command.
6. 6Correct the program part matching the code as the manual directs, then re-run the LBB turn in single block to confirm G269 executes.