text: <s>[INST] PF700S with a Stegmann optional encoder I have a pair of PF700S configured in a master-slave arrangement each with a Stegmann optional encoder. I can get the drive to run in senorless mode for speed control at the reference of 600RPM.However when I try to use the Stegmann encoder speed feedback (FB opt port 0) mode for speed control I only get about 120RPM feedback with my reference at 600RPM. The slip tune and inertia wizards in DriveExecutive just osillate the motors back and forth around +-30 RPM and never complete their tests over a 5 minute span before I abort them. I have noticed the output voltage parameter 307 is 212V for senorless and 77V for FB Opt port 0. Any suggestions? [/INST] Searching the Knowledgebase, I found this: ID 26187: A Vector Drive is not Working, Or the Motor Is Rotating Slowly and the Motor is Pulling 100% Current. But the parameter they reference for the 700S2 is 367 is called Fdbk LsCnfgPosit that doesn't have an ignore option. There is no FP Opt0 LossCnfg set to Ignore (0) I can find? \\n </s>