EPC-250

The Altronic Controls EPC-250 Engine Performance Controller is designed to provide continually optimized control of air/fuel ratio and ignition timing on large, fuel-admitted integral and separable compressor packages. Incorporating an 8.4" MIDAS HMI and a purpose-built Altronic control module, the EPC-250 easily and effectively replaces both traditional pneumatic controls and legacy electronic control systems, and is also a drop-in replacement for the Altronic EPC-200. A user-defined RPM map is used as the primary control for the 4-20mA ignition timing output. Engine air/fuel ratio is most often controlled by exhaust by-pass versus an on-board 4-20mA output mapped to engine fuel pressure. Other controller inputs, including air manifold temperature, air manifold pressure, and fuel BTU quality can be used as biasing factors for either/ both control maps to provide an enhanced level of control and optimization across a wide range of engine makes, models, and application requirements. Two digital offsets are also available to account for load and detonation-related events. In addition to air/fuel ratio and timing functions, the EPC-250 also provides six user-programmable, solid-state relay outputs to support common start/stop requirements including purge, crank, crank-disconnect, etc. A seventh discrete output provides a signal to a safety shutdown monitoring system in the event of an overspeed, overload, or on a loss of any system input. The EPC-250 is easily configured via the system keypad and a user-friendly menu system. Full Modbus RTU TCP/IP communications are integrated into the system to allow for simple integration with other process control, monitoring, or telemetry systems.