Allen-Bradley 20-750-S1 Safe Speed Monitor Module

Allen-Bradley 20-750-S1 Safe Speed Monitor Module is an option card for PowerFlex 750-series drives that provides dedicated speed monitoring within the PF750 safety system. Installed in a PF750 drive, the SSM integrates into the drive's safety chain to monitor motor speed and generate safety signals as part of safety-related operations. The module features five discrete inputs, three sets of safety outputs, and one bipolar safety output to connect to safety relays or safety controllers. Firmware for the PF750 Safe Speed Monitor is version 1.008. Cut sheets and compatibility listings confirm PF750-series applicability, and Rockwell's product details identify the 20-750-S1 as the PF750 Safe Speed Monitor option module (discrete-wire).