Dual Solenoid Multifunction Valve Driver (Dual)
A metal box-style control amplifier for controlling HydraForce proportional valves. The metal housing is potted and is IP65 rated. Remote mounting is required. This controller has seven outputs that provide accurate control of hydraulic proportional and directional valves for a variety of hydraulic functions.
Product Operation
This controller will accept inputs from a joystick potentiometer with or without center tap, from a standard potentiometer, or from commonly available control signals such as 0–5 VDC, ±5 VDC, 0–10 VDC, ±10 VDC, 0–20 mA, and ±20 mA. It is designed for circuits using dual solenoid proportional four-way valves, single solenoid proportional flow and pressure controls, single or dual solenoid on/off valves, or half-speed
functions.
Product Features
• Adjustments easily accessible and clearly labeled.
• One unit covers supply voltages from 9 to 32 VDC.• Current sensing circuit maintains output current regardless of changes in input volt-age and coil resistance.• High/Low range input provides reduced output for training or operation of equipment in tight spaces.
• No internal fuses; circuit limits current electronically.
• Short circuit proof and reverse polarity protected.
• User selectable Deadband Jump.
• Adjustable Min. and Max. current.• Pump Enable output active only when joystick is active.
• Asymmetrical or symmetrical ramps—user selectable using Dip Switch 2
• Center Null feature accommodates joystick or potentiometer centering errors.
Product Ratings
Supply Voltage: 9–32 VDC Coil rating must be matched with supply voltage: RCOIL ≤ (VSUPPLY – 1.5 V) / I-Max.
Control Input Signal Options: User selectable using Dip Switch 1: Voltage Inputs: 0–5 VDC (2.5 VDC=0); 0–10 VDC (5 VDC=0); ±5 VDC (0 VDC=0); ±10 VDC (0 VDC=0) Current Inputs: 0–20 mA (10 mA=0); ±20 mA (0 mA=0) Joystick Potentiometer Input: 10K potentiometer recommended; 5K to 50K pots can be used; The potentiometer connection provides a 5.0 VDC bias voltage as well as a 2.5 VDC center tap driving voltage. A remote joystick potentiometer with or without center tap can be used. Low Range Input (I-Max/2): Full speed unconnected; 50% speed activated by applying 9–32 VDC through an external switch.
Input Resistance: Current Mode: 250 Ohms Voltage Mode: 0–5 VDC, 1.38M Ohms ±5 VDC, 750K Ohms 0–10 VDC, 750 K Ohms ±10 VDC, 1.75M Ohms
Output Current: up to 2000 mA (see ordering info.)
Minimum Current Range: 0–2000 mA (adjustable)
Maximum Current Range: 0–2000 mA (adjustable)
Ramp Up and/or Down: 0.01–5.0 seconds (independently adjustable using Dip Switch 2)
Dither Frequency: 70–350 Hz (adjustable)
Dither Amplitude: 0–10% of maximum current (adjustable)
Operating Conditions: –40° to 85°C; 0 to 85% relative humidity
3.438.1
Proportional Valve Controller—Metal Housing—
GENERAL SPECIFICATIONS
Metal Housing: Conformal coated Exte-rior; Potted Interior; IP65 rated
Weight: 0.58 kg (1.28 lbs.)
Connections: Flat, tab-style (22); mates with 0.25 inch female tab connector: Keystone part no. 4470; also accepts 16–20 AWG wire. Model with screw terminals available.
