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A convenient, plug-mounted control amplifier for controlling HydraForce proportional valves that have solenoids with DIN 43650A/ISO 4400 electrical connectors.
This control module uses closed-loop current control with superimposed dither to sup-ply a proportional valve solenoid with a proportional control signal. The input signal to this controller can be from a 10K potentiometer, 0–5 VDC, 0–20 mA, or from other
pre-set levels.
• Mounts directly to solenoid coils with DIN 43650A connectors.
• IP65 weather resistant when used with base gasket (supplied).
• Adjustments accessible with a removable cover.
• One unit covers supply voltages from 9 to 32 VDC.
• No internal fuses; circuit limits current electronically.
• Short circuit proof and reverse polarity protected.
• Connector can be disconnected from coil when powered.
• Maximum current adjustment does not affect minimum current setting.
• Independent ramp adjustments and internal supply for potentiometer.
• Dither frequency and amplitude are adjustable for maximum valve performance.
Supply Voltage: 9–32 VDC Coil rating must be matched with supply voltage: RCOIL ≤ (VSUPPLY – 1.5 V) / I-Max.
Control Input Signal Options: 10K external potentiometer (accepts 5K to 50K pots), or 0–5 VDC signal, or 0–20 mA current signal (see connection diagrams)
Input Resistance: Voltage Control: 125K Ohms; Current Control: 50 Ohms
Output Current: up to 2000 mA (see ordering info.)
Minimum Current Range: 0–500 mA (adjustable; see ordering info.)
Maximum Current Range: 600–2000 mA (adjustable; see ordering info)
Ramp Up and/or Down: 0.01–5.0 seconds (independently adjustable)
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
Environmental Protection: IP65 with cover and base gasket installed
3.421.1
GENERAL SPECIFICATIONS
Plug Housing: Polyamide
Plug Lid: Polycarbonate
Weight: 30 g (1.06 oz.) without cable
Connections: Mounted cable with unterminated wires provided; Length: approximately 2 meters (79")
Proportional Valve Controller—DIN Coil Mount—
SCHEMATICSTEP-DOWNCONVERTERVPS TO 5.5 VSTEP-UPDC/DCCONVERTERSOLENOIDOUTPUTDITHERAMPLITUDEACTIVEREVERSE POLARITYPROTECTIONDITHERGENERATORCURRENT SENSING AND SHORT CIRCUITPROTECTIONVPS POWERGNDPOTENTIOMETER INPUT +–S2S1RMI-MAX.RAMP UPRAMP DOWNRMAX.ERRORAMPLIFIER+–RDARMIN.I-MIN.+5 VRDDITHER FREQUENCYRDITHERINDEPENDENTRAMP CONTROLFUNCTIONVOLTAGETO HIGH FREQUENCYPWMCONVERTERSIGNAL GNDCURRENT IN(0-20 mA)VOLTAGE IN(0-5 VDC)VOLTAGEREFERENCEGENERATOR+5 VREFERENCE +12 V–12 V+5 V(9-32 VDC)
