SPHSS13 Hydraulic Servo Module, China SPHSS13 Hydraulic Servo Module Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	SPHSS13
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Parameter	Value
Model	SPHSS13
Dimensions	3.5 x 31.5 x 17.5 cm
Weight	0.28 kg
Series	SYMPHONY® PLUS
Power Supply	24 VDC or 48 VDC
Hydraulic Performance	Max Pressure 350 bar (5,000 psi); Max Flow 100 L/min
Communication	Modbus RTU
Compatibility	LVDTs (AC & DC) and Servo Valves (Integrating and Linear 4-20 mA or 20-160 mA)
Operating Temperature	-10°C ~ 60°C
Operating Temperature	-10°C ~ 60°C

Description

The SPHSS13 is an intelligent I/O device with an onboard microprocessor, memory and communication circuitry. It integrates five core capabilities: nanometer‑level position control, fast dynamic response, redundant servo drive, comprehensive LVDT feedback diagnostics, and strong industrial environmental adaptability. It is a critical part of steam/water turbine governing systems in ABB power generation and process automation solutions.

Applications

Thermal power plants: Valve positioning in the turbine DEH (Digital Electro-hydraulic Control System).

Iron and steel smelting plants: Rolling mill reduction system and continuous casting machine crystallizer vibration control.

Hydropower plants: Turbine governor and guide vane opening control.

Paper and pulp mills: Precision adjustment of hydraulic roller pressure in the press section.

Petrochemical plants: Inlet guide vane control for large compressors.

Feature

Hydraulic servo control module for steam, gas, & hydro turbine applications

Redundant position feedback inputs and redundant servo control outputs

Compatible with a large variety of LVDT’s (both AC and DC) and servo valves (integrating and linear 4-20mA or 20-160mA)

Automatic calibration

Can be used in TMR architectures

Competitive Advantage

High-precision electro‑hydraulic closed‑loop controlIntegrates PI/P‑Only digital control algorithms with dual redundant LVDT feedback to achieve nanometer‑level positioning of hydraulic valves. High linearity and fast dynamic response support rapid regulation during unit start/stop and load fluctuations.

Comprehensive redundancy and fail‑safe operationSupports redundant servo coil drive and dual LVDT feedback. Automatic fault detection and redundant switching ensure that in case of LVDT breakage, servo coil short/open circuit, or power failure, the system switches to backup channels or locks valves to a safe position, complying with IEC 61508 functional safety requirements.

Full self‑diagnosis and online monitoringReal-time monitoring of module power, drive current, LVDT feedback voltage, and communication status. Faults are indicated locally via LEDs and reported remotely over the system bus. Online calibration of LVDTs and servo valves is supported without shutdown, greatly reducing maintenance costs.

FAQ

Q: Does the SPHSS13 support hot-swapping?
A: Yes. The SPHSS13 can be replaced without disconnecting system power, but it is important to ensure that the redundant circuit has been properly switched beforehand.

Q: What will the SPHSS13 do if the LVDT signal is lost?
A: The module will typically trigger a fault condition and lock the output to a predefined safe position (fail-safe) to prevent uncontrolled valve movement.

Q: Can the SPHSS13 replace older BRC or other servo modules?
A: It is designed specifically for the Symphony Plus series. Compatibility with the base unit and controller firmware must be verified before replacement.

Q: What does a flashing red indicator on the SPHSS13 mean?
A: It usually indicates a hardware fault or configuration loss. An engineering station should be used to read the detailed error code (such as feedback failure).

Q: What types of servo valves does the SPHSS13 support?
A: It supports most common low-current (±10 mA, ±20 mA) and high-current servo valve coils.