SHINKAWA VM-5N SST-2194-001-P001G Inclined Installation Type Thermal Expansion Monitoring Module

SHINKAWA VM-5N SST-2194-001-P001G Inclined Installation Type Thermal Expansion Monitoring Module
I. Basic Information
Brand: Japan Shinkawa SHINKAWA
Model: VM-5N
Material Code: SST-2194-001-P001G
System: VM-5 series steam turbine TSI safety monitoring system, compatible with VM-5H3 (8 slots) and VM-5W1 (10 slots) racks, supports hot swapping, in accordance with API 670 standard Shinkawa Electric Machinery…
Product Positioning: Dual-channel inverted type differential expansion (RAMP DIFFERENTIAL EXPANSION) dedicated monitoring card, specifically designed for monitoring the thermal expansion difference at the inclined measurement points of the steam turbine rotor, preventing dynamic friction between the rotor and the cylinder during start-up, shutdown, and load changes

Core Hardware Parameters
1. Signal Input Specifications
Dual-channel eddy current sensor input, compatible with FK/VK series eddy current preamplifiers + probes
Frequency Response: DC～0.5Hz (ultra-low frequency, suitable for collecting slow thermal expansion changes)
Measurement Range (factory selectable): ±5mm, ±10mm, ±25mm, 0～10mm, 0～20mm, etc. common ranges
Supports two operation modes:
Differential Mode: Both channels installed at the same inclined angle, calculating the expansion difference between two points
Addition Mode: Single inclined angle measurement point + baseline zero-point compensation to calculate the differential expansion value
Front panel dual BNC buffered output, can be connected to an oscilloscope to collect static gap voltage, used for probe installation calibration and debugging of Shinkawa Electric Machinery…
2. Power Supply and Environment
Power Supply Specifications: DC24V or AC 85～264V wide-range AC power supply
Operating Temperature: 0℃～+65℃, PCB three-proof coating, CE, LR, NK shipyard certifications
Installation: VM-5 series standard front-mounted module, supports hot-swapping without downtime replacement
3. Signal Output Configuration
Isolated Analog Output: Standard 4～20mA / 1～5VDC, selectable 0～10VDC and other voltage signals, upload DCS for real-time monitoring of differential expansion values
Four-level alarm threshold setting: CH1 warning, CH1 danger, CH2 warning, CH2 danger, accuracy ≤ ±1% FS
Three independent relay outputs: ALERT warning, DANGER danger, SENSOR FAULT sensor fault
Alarm Modes Available: Automatic reset / Fault self-locking retention; Supports first-out fault retention, alarm bypass function of Shinkawa Electric Machinery…
4. Local Configuration and Human-Machine Interface
Digital tube + keys for local setting: range, inclined angle parameters, alarm values, analog output type, alarm reset method
Combined with VM-53 communication card, can be connected to Modbus RTU bus to achieve remote data upload, trend storage, and fault recording