CHAPTER 9: MALFUNCTIONS 9-7
ALPHA 552
Description
The « Bar stock insertion malfunction» alarm is generated
whenever the collet or material diameters are not adapted.
Solutions
Check the collet diameter.
Check the bar stock loading diameter.
AL20: Barstock not extracted from the collet!
Description
The «Bar stock not extracted from the collet» alarm is
generated if the signal (I7 – SQ12) is not detected after the
bar has been extracted from the collet of the bar feed. Before
the guiding channel opens to load a new bar, the remnant
check device confirms that the remnant has been extracted
from the collet of the bar feed.
Solutions
Check that the extraction device jaws are not broken.
Check the adjustment of SQ5, the switch should only activate
when no bar is present in the collet of the bar feed.
Contact LNS SA for further information.
AL21: Bar magazine empty!
Description
This alarm is generated when no material is detected in the
guidance zone.
Solutions
Check the material presence.
AL22: Material present in simulation cycle!
Description
Whenever the bar feeder is in simulation mode, it’s not
allowed to have a material. If a bar is detected by the
switches, they alarm is generated.
Solutions
Remove present material in the bar feeder.
AL23:
Left empty
AL24:
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