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ppr fittings-NF-4011-Newsun Industry Co., Ltd
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G92 or G32 for screw thread not working

G92 or G32 for screw thread not working


The CNC controller is not working on G92 or G32, the X and Z axis are even not moving, but G99 is normal to turn the end face and excircle of the workpiece under AUTO mode.


It could be several causes:

1-      Encoder wiring problem of the AC servo motors.

2-      Encoder hardware problem of the AC servo motors.

3-      I/O board problem of the CNC controller.

4-      Clutch slipping.


In this case we found there is a cold solder joint on Zero signal cable of the Z axis encoder, fix it then everything is fine.

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