text: <s>[INST] 5700 Motor cable plugs Hello, We recently installed some Kinetic 5700 series, D057 servo's. Installation and commissioning went well but after a few days of running we had a fault which turned out to have been caused by a motor plug coming out of the socket. Apparently this is a known issue and amplifiers which are of the B series rather than A series have used a different socket so that the sides of the plug are now meant to be gripped. But we have used the new connection kit and can't see any physical difference between the old and new motor plugs, you would of expected to see a raised dimple on the side of the plug to allow the new socket to grip the plug better. The old connection kit part number is 2198-KITCON-D057 and the new connection kit part number is -L. I have read the only document I can find regarding the difference between the two connection kits (Rockwell Automation Publication KNX-TD003H-EN-P - October 2021) but it only specifies which connection kit should be used for which series of amplifier (page 41). I am starting to think that the wrong plug has been put in the new connection kit (-L) that we have just received. Can anyone confirm if there is any difference between the plugs or not? Thanks, [/INST] Hi Luke did you check the Rockwell knowledge base article QA36257 ? \\n </s>