Need a quote? Contact us. +1 905 602 9270 or

AX022420: 4 Inputs, 2 Outputs Universal Valve Controller

Available Resources


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

The Universal Valve Controller (4i2o) 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. The universal output type is user selectable as high side, low side or half bridge output. All I/O ports on the unit are independent from one another.

The 4i2o 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 many ways.

The 4i2o has several built-in protections 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®.

A rugged power supply interface accepts 12 Vdc or 24 Vdc nominal for battery powered machine applications. LED’s indicate operational status. The enclosure is DIN rail mount. It operates from -40 to 85°C (-40 to 185°F). The sophisticated control algorithms allow the user to program the controller for a wide range
of applications without the need for customer software.

Technical Specifications:
Order Codes:Dual Input, Two Outputs Valve Controller, 250 kbps SAE J1939: AX022420
Dual Input, Two Outputs Valve Controller, 500 kbps SAE J1939: AX022420-01
Dual Input, Two Outputs Valve Controller, 1 Mbps SAE J1939: AX022420-02
Power: 12 Vdc or 24 Vdc nominal
Voltage Reference:1 +5VDC, +/- 0.5%, 100mA maximum
Inputs:2 fully independent universal signal inputs are provided.
All inputs are user selectable as Voltage, Current, Resistive, Frequency, RPM, PWM
or Digital input types.
Refer to Table 1.0.
Inputs are sampled multiple times per millisecond.
Protected against shorts to GND or +Vps (up to 43Vdc)
All input channels can handle negative voltage inputs down to -2VDC due to voltage
spikes or noise.
Response time to change at the input 2 mSec +/- 1 mSec (without software filtering)
unless otherwise noted.
Outputs:Two independent universal outputs selectable as: proportional current, proportional
voltage, hotshot or ON/OFF digital or PWM type.
Communications:Compliant to SAE CAN J1939 Standard
1 CAN port (SAE J1939)

Near Field Communication
Data rate: 106 kbit/s
Complies with ISO1443 (RF protocol), ISO13239, and ISO7816
Protected and secure configuration
Enclosure:Phoenix Contact: ME MAX 22,5 G 2-2 KMGY – 2713638 or
PHO ME MAX 22.5 2-2 KMGY – 2713625 (vented)
Polyamide, UL94V0, cULus recognized, China RoHS
DIN rail TH 35-7.5
99 x 114.5 x 22.5 x 99 mm (L x H x W x D)
Refer to Figure 2.0
Control logic:User programmable functionality using Electronic Assistant® service tool
Refer to the User Manual for details.
User Configurability:

This is a unique website which will require a more modern browser to work!

Please upgrade today!