Product Overview

• Part Number: SPHSS03, alias HSS03
• Brand: ABB, Origin: Switzerland
• System Series: ABB Symphony Plus distributed control system
• Type: Rack-mounted hydraulic servo closed-loop control module

• FunctionReceives position command signals from DCS main controller, collects real-time position feedback from LVDT displacement sensors. Executes high-speed closed-loop operation, outputs 4-20mA or 0-10V proportional analog signals to drive hydraulic servo valves. Accurately controls opening of steam turbine inlet valves, boiler fuel valves, pipeline regulating valves, realizing precise positioning, speed adjustment and pressure closed-loop control of hydraulic actuators. Supports automatic control mode and local manual mode switching, with calibration function for zero and range correction on site.

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Core Features

1. High-precision closed-loop controlBuilt-in high-speed servo algorithm, ultra-short response time, effectively reduce overshoot and oscillation; compatible with standard LVDT position feedback signal access to ensure micron-level positioning accuracy of valves and hydraulic cylinders.
2. Dual signal output optionsConfigurable output: 4~20mA current signal or 0~10V voltage signal, matching most industrial servo valves and electro-hydraulic converters.
3. Complete diagnosis indicatorsFront panel with CAL, OUT, MAN status LED lights, supporting hardware self-check, open-circuit and short-circuit fault alarm, convenient rapid troubleshooting of feedback line and output circuit faults.
4. Harsh environment adaptabilityPCB conformal coating, anti-dust, moisture-proof, oil mist resistance and strong electromagnetic interference resistance, stable operation in power plants, chemical plants and high-voltage switch rooms. Standard card rack hot pluggable design for cabinet maintenance without system shutdown.

5. Flexible operation modeThree working states: calibration, automatic control, manual jog adjustment, convenient field debugging, valve stroke calibration and offline test.

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Technical Specifications

• Power Input: DC 24V, rated operating current 1A
• Control Output: 4-20mA / 0-10V configurable
• Operating Temperature: -20℃ ~ +60℃
• Storage Temperature: -40℃ ~ +85℃
• Overall Dimension: 298mm × 177mm × 35mm
• Net Weight: 0.6kg
• Installation: Standard Symphony Plus card slot rack installation
• Protection Class: IP20 (cabinet internal installation only)
• HS Code: 85389091
• Supply: Brand new original, new old stock and fully tested refurbished modules available

• Status: Officially discontinued; only spot inventory and refurbished stock supplied

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Compatibility

• Matched control platform: ABB Symphony Plus DCS, HR series controllers
• Supporting accessories: LVDT displacement sensors, hydraulic servo valves, I/H current-to-hydraulic converters
• Applicable cabinets: Thermal power plant turbine control cabinet, boiler burner regulation cabinet, petrochemical pipeline valve control cabinet

• Direct interchangeable replacement for all batches of SPHSS03

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Application

• Thermal power steam turbine main valve, governing valve hydraulic positioning maintenance replacement
• Boiler fuel, air supply servo valve closed-loop control overhaul
• Petrochemical, refinery pipeline hydraulic regulating valve precision control spare parts
• Metallurgical hydraulic press, marine hydraulic steering system servo signal board maintenance
• Old Symphony Plus DCS hydraulic control system renovation backup

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