Hello all.
Extruder puller drive, PowerFlex 755, 75 hp, on EtherNet/IP to a CompactLogix 1769-L30ER. The drive drops off the network now and then and the controller shows 16#0204 on it. The drive doesn't fault, it just loses comms and the puller coasts on the last command until it comes back. Twice a shift maybe.
Switch is a Stratix 5700 in the main panel. The drive's port, gi1/5, has CRC and alignment errors climbing, a couple of hundred a day, and every other port sits at zero.
I swapped the drive's comm card, the 20-750-ENETR, with the one out of the other puller and the errors stayed on gi1/5, then moved the drive to gi1/6 and the errors went with it. So the switch is fine and the drive's port is bad? The errors followed the drive both times, so is it that drive's own cable I want rather than the card?
Errors move with the cable, not with the port and not with the card. That leaves the cable and whatever's next to it. What is the cable, and where does it run between the switch and the drive?