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Axiomatic

AX022400 2 Universal Input, Dual Valve Controller

2 Universal Inputs, 2 0-3A Outputs 

The Dual Input, Dual Output Valve Controller (2i2o) is designed for extremely versatile control of up to two proportional outputs to directly drive coils or other loads. Its flexible circuit design gives the user a wide range of configurable input or output types. The sophisticated control algorithms allow the user to program the controller for a wide range of applications without the need for custom software.

The controller has two fully programmable universal inputs that can be setup to read: voltage, current, resistive, frequency, or digital input signals. There are also two universal outputs that can be setup to drive: proportional current (up to 3A each); hotshot digital current; proportional voltage (up to supply); proportional PWM; or straight on/off digital loads. All I/O ports on the unit are independent from one another.

The 2i2o is a highly programmable controller, allowing the user to configure it for their application. Its sophisticated control algorithms allow for open or closed loop drive of the proportional outputs. It can be operated as either a self-contained control system, driving the outputs directly from the on-board inputs, and/or it can be integrated into a CAN J1939 network of controllers. All I/O and logical function blocks on the unit are inherently independent from one another, but can be programmed to interact in a large number of ways. While the Block Diagram shows the hardware features, Figure 1 shows the logical function blocks (software) available on the 2i2o.

The 2i2o has a number of built-in protection features that can shut off the outputs in adverse conditions. They include hardware shutoffs to protect the circuits from being damaged as well as software shutdown features that can be enabled in safety critical systems.

All setpoints are user configurable using the Electronic Assistant®.

Applications:

The controller is designed to meet the rugged demands of mobile equipment, marine and heavy duty industrial machine applications. These applications include, but are not limited to:

  • Proportional Fan Drive Control
  • PID Closed Loop Valve Control
  • Hydraulic Valve Control
  • Signal Conversion

Features:

  • 2 universal signal inputs configurable as:
    • Voltage
    • Current
    • Resistive
    • PWM
    • Frequency/RPM
    • or Digital
  • 2 outputs to drive valves (0-3A)
  • Outputs are user configurable as:
    • Proportional Current
    • Proportional Voltage
    • Hotshot Digital
    • PWM Duty Cycle (1 Hz to 25 kHz)
    • or On/Off Digital
  • 1 +5V Reference
  • Fully protected outputs
  • 12V, 24V or 48VDC nominal
  • 1 CAN (SAE J1939) port (CANopen® on request)
  • Rugged IP67 packaging and connectors
  • Electronic Assistant® together with an Axiomatic USB-CAN converter links the PC to the CAN bus for user configuration.
  • Flexible user programming for application-specific control logic via the CAN based Electronic Assistant.

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