GE Fanuc has discovered that assembly screws for the communications connector on certain Series 90-30 CMM and PCM modules may be incorrect.  The incorrect assembly screws do not allow for the communications cable jackscrews to be screwed into the module's communications connector, causing an inability to form a secure connection.  This condition may exist on the Series 90-30 modules identified above which were shipped by GE Fanuc from June 2, 2001 through September 4, 2001 (Module date code 123 through 135).
Modules with this condition must be returned to GE Fanuc so that the assembly screws for the module's communications connector can be replaced.
 
Effected Modules:
IC693CMM311N, IC693PCM300P, IC693PCM301, and IC693PCM311M

Description The affected Series 90-30 CMM and PCM modules have communications connector assembly screws which are too long and do not allow enough room for the jackscrews on a communications cable to be screwed into the tapped holes in the module’s communications connector.  If the cable’s connector jackscrews are not screwed into the connector, the cable cannot be properly secured, and could fall off due to vibration or external cable stress, resulting in a loss of communications.  Not all of the identified modules are affected and a brief visual inspection can determine whether further action is required.
 
Required Action A brief visual inspection can determine whether the communications cable jackscrews can be screwed into the tapped holes in the module’s communications connector.  If the module does not have space available to properly secure the communication cable by tightly screwing the cable jackscrews into the tapped holes, the module must be returned to GE Fanuc so that the assembly screws can be replaced.  Return authorization and replacement modules can be obtained from your local authorized GE Fanuc distributor.
 
 
For further technical information concerning this bulletin, please contact your local GE Fanuc office or Authorized Distributor.