The 505 and 505E are microprocessor-based controls designed to operate steam turbines of all sizes. The 505 is designed to operate steam turbines using one or two (split-stage) actuators to drive inlet steam valves. The 505E is designed to operate single extraction and/or admission steam turbines. These digital controls are field configurable. They use menu-driven software to instruct site engineers on programming the control to a specific generator or mechanical drive application. The 505 or 505E can be configured to operate as a stand-alone unit or in conjunction with a plant's Distributed Control System.

The 505View Operator Interface Software provides Human Machine Interface (HMI) capabilities for 505 and 505E steam turbine control systems. 505View software loads onto the user's PC which connects to the 505/505E control. 505View is designed for Operator Control and Annunciation in either control room or local control applications. Integral remote access capabilities allow flexibility in a variety of applications. Alternatively, 505View may be loaded onto a laptop PC to be used by technicians and engineers only as needed.

The Peak® 150 digital control is designed to control a steam turbine driving a mechanical load. It provides tight control of speed (NEMA D) and includes an input for a 4-20 mA remote speed control signal, which can be used for a process-generated input to control the speed setting. Other features include dual speed control dynamics and overspeed trip test capabilities.