Description: precise, repeatable control of 1 proportional or on/off solenoid valve to adjust the speed of a hydraulic fan. Fan speed is inversely proportional to the current through the valve. Valve current control is based on up to three 2-wire temperature sensor inputs. An additional analog input can be used for an override input or other function. A +5V reference powers the override potentiometer. One digital input can be used as manual control input to allow the fan speed in this mode to be set by the Override Potentiometer or analog input. A PWM input is available for interface to an engine ECM (electronic control module) or PWM temperature sensor. Three digital inputs allow for speed advance, speed retard and fan reverse functions (or other functions). The robust design accepts 9-32V power supply input and is packaged in an IP67 designed for remote mounting. RS-232 port interfaces to PC with Tera Term freeware for user configuration and diagnostics. Other hydraulic control appli Features: Independent output drives 1 solenoid valve (on/off or proportional) Up to 3 analog temperature sensor inputs with +5V reference power One PWM input interfaces to an ECM or PWM temperature sensor Three active low digital inputs (interface to switches, fan reverse and other fan control commands, etc.) to allow the fan speed in this mode to be set by the Override Potentiometer or analog input. Universal analog input (0-5V, 0-10V, 4-20 mA, 0-20 mA) +5V reference can power a potentiometer Interfaces to a 9-32VDC power supply with reverse polarity protection Thermal overload and overvoltage protection provided ory preset ranges based on the application Rugged IP67 rated packaging with plug-in connections Operational from -40 to 85C (-40 to 185 F) RS232 interface to PC or laptop for user configuration and diagnostics Ordering Part Numbers: Controller: AX021500 ontact Axiomatic for a part number.) Accessories: AX070000 Mating Plug Kit with DB-9 TDAX021500 2Technical Specifications: T Specifications: The specifications represent a