Description
Technical Specifications
- Product Model: VM-5T-11010-000-000-111-0
- Brand: Shinkawa (Shinkawa Electric)
- Series: VM-5 Series TSI Turbine Supervisory Instrumentation
- Warranty: One Year
- Input Voltage: 24 VDC ±10%
- Operating Temperature: 0 °C to +65 °C
- Storage Temperature: -30 °C to +85 °C
- Response Time: < 100 ms signal sampling cycle
- Protection Class: IP20 (Rack-mounted module for VM-5H / VM-5W racks)
- Accuracy Class: ±0.5% Full Scale at 25°C; ±2.0% Full Scale across full operating range
- Output Frequency: Not applicable (condition monitoring module)
- Rated Current Range: 4–20 mA recorder output (max. 500 Ω load)
- Communication Interface: D-Sub 9 connector for analog recorder output; front terminal block for probe inputs & relay wiring
- Supported Protocols: Analog 4–20mA, compatible with VM-5P communication module for Modbus data transmission
- Overload Capacity: Built-in transducer cable fault detection, ESD and surge protection for proximity probe inputs
- Dimensions: 128 mm × 40 mm × 220 mm (standard single-slot VM-5 rack form factor)
Product Overview
The VM-5T-11010-000-000-111-0 is a dual-channel thrust position monitor designed for Shinkawa VM-5 TSI systems, fully compliant with API 670 industry standards for rotating machinery protection. This rack-based module receives measurement signals from eddy current proximity probes to continuously track axial shaft displacement on turbines, compressors and generators. It processes two independent measurement channels, supporting configurable Alert and Danger relay alarm thresholds to warn operators of abnormal thrust movement that can lead to thrust bearing failure and catastrophic rotor contact. Integrated self-diagnostics continuously monitor probe wiring integrity and signal health to detect open/short circuit faults. Power plant maintenance teams stock this spare monitor to replace aging TSI hardware, preserving continuous machinery protection and preventing unplanned rotating equipment trips.
Application Scenarios
- Combined Cycle Gas Turbine Units: Installed in VM-5 instrument racks to monitor axial thrust position of gas and steam turbine rotors. Dual channel measurement provides redundant thrust monitoring to avoid bearing damage during load transients and grid disturbances.
- Centrifugal Compressor Packages (Oil & Gas): Tracks shaft thrust for process compressors on pipeline and refinery sites. Adjustable alarm setpoints enable early detection of impeller fouling, balance piston degradation or surge-related thrust shifts.
- Thermal Power Station Steam Turbines: Delivers critical thrust protection for large synchronous generators. Wide operating temperature tolerance supports reliable operation in unconditioned turbine control rooms.
- Hydroelectric Turbine Generators: Supervises axial rotor displacement for water turbine units. Fault detection functionality alerts staff to abnormal loading conditions before mechanical wear escalates into costly equipment damage.
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