text: <s>[INST] PowerFlex 525 Encoder module Positioning of the Encoder Summary: Encoder location PowerFlex 525 PostioningI have been testing the 25-ENC-1 Encoder module with the PowerFlex 525 Drives on the test bench. Setting up the Drive as an indexing drive to binary select the setpoint when Position Mode (P558) is set to Preset Input. The trouble I'm having is placement of the encoder. When I couple the Encoder to the Motor Fan shaft I get desirable speed and positioning of the Output shaft on a 60:1 gear box. But if I couple the encoder to the output of the gear box and change the Counts Per Unit (P559) my motor speed is extremely slow but positioning is correct. The system eventually get to the preset position only it takes a few minutes to get there. I have tried to adjust the gains as the user manual suggested even as far as to the extremes. Lowered the Pos Reg Filter (P565) to 1 and raised the Pos Reg Gain (P566) to Max 200 but still no response to very little. I understand that this is not to replace a high end servo system but there are a few places on our plant floor that the cost of Servo system outweighs the benefit. I would like to find a solution to mounting the encoder to the tool vs the motor. In many application this is more practical and easily done. [/INST] You should set the parameter A536=Encoder PPR/60 when you couple the encoder to output shaft of the reduction gear box . \\n </s>