Product Short Description
Product Introduction
Compact rack-mount 8-channel digital proportional hydraulic valve drive amplifier, rated for 230 VAC mains power supply. Converts industrial analog control signals into high-precision pulse-width modulation drive current for Parker proportional hydraulic valves, realizing closed-loop flow and pressure regulation for hydraulic machinery production equipment.
Description
Material Composition
- Outer housing: Black cold-rolled steel sheet metal anti-corrosion coated casing
- Drive circuit substrate: High-current industrial power PCB with copper thickened conductive traces
- Power drive components: High-temperature IGBT power switching chips
- Signal isolation components: Linear optocoupler isolation modules
- Terminal block: Nickel-plated copper alloy spring wire clamping terminals
- Heat sink: Built-in aluminum alloy power tube heat dissipation fin
Structural Features
- Standard DIN rail mounting compact rectangular unit form factor for electrical control cabinet installation
- Front panel integrated channel status LED indicator group and digital parameter adjustment potentiometers
- Separate terminal blocks for 230 VAC mains power input, analog control signal input and proportional valve drive output
- Internal built-in aluminum fin heat sink for power IGBT heat dissipation
- Independent signal isolation zone separates low-voltage control signal circuit and high-current power drive circuit
- Overheat protection temperature sensing probe attached to power heat sink surface
Technical Specifications
- Model Number: DR1008B-230
- Power Supply Input: 230 VAC single-phase mains power, 50/60 Hz
- Channel Configuration: 8 independent proportional valve drive output channels
- Single Channel Rated Drive Current: 0–2 A continuous adjustable PWM output current
- Control Signal Input Standard: 0–10 VDC analog voltage signal, 4–20 mA analog current signal dual compatible
- PWM Switching Frequency: 1.2 kHz fixed drive frequency
- Signal Isolation Voltage (Control ↔ Power Drive): 1000 VAC dielectric withstand
- Operating Temperature Range: 0 ℃ ~ +55 ℃
- Storage Temperature Range: -25 ℃ ~ +70 ℃
- Maximum Power Consumption Full Load: 120 VA
- DIN Rail Mounting Standard: EN 60715 35 mm standard top hat rail
- Unit Dimension: 160 mm (L) × 110 mm (W) × 45 mm (D)
- Net Weight: 0.78 kg
Function Features
- 8 independent fully isolated proportional valve drive channels, no cross-channel signal interference during simultaneous multi-valve regulation
- Dual-mode analog control signal input compatibility (0–10 V / 4–20 mA) matching all mainstream industrial PLC analog output modules
- Front panel independent potentiometer for each channel zero offset and gain parameter manual adjustment
- Built-in overcurrent, short-circuit, overheat and mains overvoltage multi-layer protection circuit
- Channel fault LED alarm for output short circuit, valve coil open circuit and drive overcurrent state
- Closed-loop current feedback control for each channel ensures stable valve drive current under hydraulic load fluctuation







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