IMHSS03 | ABB Bailey Symphony Hydraulic Servo Module | Turbine Control Unit

Product Description

The ABB Bailey IMHSS03 Hydraulic Servo Module is a specialized control unit engineered for turbine regulation within INFI 90 and Symphony Harmony platforms. It serves as the interface between processor outputs and hydraulic actuators, enabling precise positioning of turbine throttle valves through servo valves or I/H converters.

Technical Specifications

• Manufacturer: ABB Bailey

• Model: IMHSS03

• Product Type: Hydraulic Servo Module

• System Compatibility: INFI 90 / Symphony Harmony Rack I/O

• Processor Interface: Compatible with IMMFP01, IMMFP02, and IMMFP03 Multi-Function Processor Modules

• Signal Handling:

• Accepts position demand signals from MFP processors

• Drives servo valve currents for turbine throttle valve actuation

• Processes LVDT feedback for closed-loop position control

• Bus Communication: Integrated with INFI 90 bus

• Onboard CPU Functions: Gain tuning, fault buffering, and loop closure management

• Dimensions: Approx. 120 × 80 × 60 mm

• Weight: 2 kg

• Origin: Switzerland

Application Scenarios

• Turbine control systems requiring precise hydraulic actuation

• Power generation plants using ABB Bailey INFI 90 or Symphony Harmony platforms

• Environments where closed-loop feedback and high accuracy are critical for turbine throttle valve regulation

FAQ

Q: What is the primary role of the IMHSS03 module?  A: It bridges processor outputs to hydraulic actuators, ensuring accurate turbine throttle valve positioning.

Q: Which processor modules are supported?  A: The IMHSS03 works with IMMFP01, IMMFP02, and IMMFP03 multi-function processor modules.

Q: Does the module provide closed-loop control?  A: Yes, it processes LVDT feedback to maintain precise closed-loop position control.

Q: Where is the IMHSS03 manufactured?  A: The unit is produced in Switzerland.