text: <s>[INST] Powerflex 523 runs at full speed I have a Powerflex 523 drive running a 1 horsepower motor. When you press the start button the motor starts but accels to 60hz, not matter where you turn the drive pot the motor does not slow down. I have the source 1 control set to keypad and speed control 1 set to drive pot. I must be missing something in the set-up. Walt [/INST] Hi there, What did you set parameter P043 (Min Freq) for? Do you have anything wired into terminals 03, 05 or 06, these are defaulted to Preset speeds and will over-ride anything else. Are you sure that you have P047 set to 0? If you have it set to 1, then you are set for Keypad Freq, which associates itself to Parameter A426, and that is defaulted to 60Hz. If you look at the page in Chapter 1 that references Start and Speed Reference Control (Page 46, PF520 User Manual) in the manual, it shows you the hierarchy of the control structure for the drive. \\n </s>