SHINKAWA MP-2W2 Axial vibration monitoring module

SHINKAWA MP-2W2 Dual-channel Axial Displacement/Axial Vibration Monitoring Module (VM-5 Series TSI System)
I. Basic Information
Brand: Japan Shinkawa
Model: MP-2W2
Frame: VM-5 Series TSI Safety Monitoring Frame (VM-5H3, VM-5W1), supports hot-swapping
Equipment Positioning: Special monitoring card for dual-channel eddy current sensors, used for monitoring parameters of rotating machinery shaft systems, compatible with FK series eddy current probes, capable of monitoring radial vibration of the shaft, axial displacement, eccentricity, differential expansion, etc., meeting API 670 unit safety protection specifications.

Key Hardware Parameters
1. Signal Input
2 Independent eddy current signal input, each channel has its own high-frequency driver and gap voltage detection circuit
Compatible with FK series preamplifiers + extension cables + probes, can read static gap voltage to determine probe installation status
Measurement range can be configured locally by buttons: common ranges 50μm, 100μm, 200μm, 500μm, 1mm, 2mm, etc.
Frequency range: 10Hz～10kHz, can set high-pass and low-pass filtering to suppress power frequency interference
Front panel dual-channel BNC buffer output, can be connected to an oscilloscope to collect the original waveform for fault diagnosis and on-site debugging
2. Power Supply and Environment
Power Supply: DC24V or AC100~120V selectable
Operating Temperature: 0℃～+65℃, PCB three-proof coating, strong electromagnetic interference resistance, suitable for power plants, chemical plants, metallurgical conditions
Installation: Standard VM-5 Series frame card, supports hot-swapping replacement without downtime
3. Output Configuration
Isolated analog output: 4～20mA / 1～5VDC selectable, uploads real-time values of displacement/vibration to DCS, PLC for remote monitoring
Two-level independent alarm relays
ALERT: Warning alarm, can be set with delay to prevent instantaneous interference from false alarms
DANGER: Hazardous cascade alarm, can be connected to ETS to achieve equipment shutdown protection
Sensor fault relay: independent alarm output when probe breaks wire, cable short circuit, gap exceeds linear range
Has peak retention, first fault lockout, alarm bypass functions, facilitating fault post-analysis and temporary shielding of measurement points
4. Communication and Human-Machine Operation
Panel digital tube + function keys, can locally complete all parameter settings such as range, alarm value, filtering, output type
Combined with frame communication card, can expand Modbus RTU (RS485), connect to infiSYS upper monitoring system, realize trend storage, fault recording, remote parameter viewing.

Core Functions
Dual-channel independent measurement, can be configured separately for measurement types (shaft vibration, axial displacement, eccentricity, etc.), or perform redundant voting protection (two out of one / two out of two) to enhance unit protection reliability.
Full-loop sensor self-diagnosis, real-time monitoring of preamplifier working status, cable connection status, early detection of line aging, probe loosening hazards, preventing protection failure.
Supports alarm delay, peak memory, records the maximum displacement/vibration values during unit start-stop, load variation processes, used for rotor imbalance, rotor-stator friction, etc. fault analysis.
Strong and weak current isolation design, analog circuits and relay circuits are all isolated electrically, avoiding measurement jump, false interlock caused by on-site interference.

 Typical Application Scenarios
TSI system for thermal power, gas turbine, hydroelectric generating units, compressors, large fans, turbine units, used for monitoring and safety interlock protection of key parameters such as axial radial vibration, axial displacement, rotor eccentricity, etc.