The Allen-Bradley 20-750-S1 Safe Speed Monitor Option Module is a safety accessory for PowerFlex 750-Series AC drives that adds a dedicated Safe Speed monitoring channel to verify motor speed and support safe operation. Compatible with PowerFlex 750-Series drives, including PF755, it carries firmware for PowerFlex 750 Safe Speed Monitor version 1.008. Catalog number 20-750-S1; this option module is specified in PF750-Series safety documentation and is installed alongside the PF750 drive to enable Safe Speed Monitor functionality.
