Keyboard 700 Step Control Function Module Manual

This document details the specifications, installation, and commissioning of the Satchwell Keyboard 700 series step control function modules (types FTS, FLS, and FBS), which interface with 0-10 Vdc controllers to provide stepped on/off output for stages like electric heaters or refrigerant coolers. It covers binary step control for fine load management, timing adjustments, relay configurations, and safety precautions for panel mounting.