Technical Specifications Input Channels: Multiple position input channels Signal Type: Eddy current proximity probe signal Power Supply: Powered by rack backplane Operating Temperature: 0℃ ~ +60℃ Mounting: 3500 rack slot mounting Housing: Metal rack card casing
Functional Features Multi-channel non-contact position signal acquisition from eddy current probes. Real-time measurement of shaft axial displacement, valve position and casing expansion. Alarm and trip logic judgment according to position threshold. Built-in probe and cable fault diagnosis function. Hot swappable for online replacement. LED indicators for channel status and alarm.
Application Scenarios Thrust bearing axial displacement monitoring for turbine and compressor. Steam valve position monitoring of power plant turbine units. Casing thermal expansion measurement of large rotating machinery. Petrochemical compressor thrust position protection system. Industrial equipment linear position online monitoring and interlock.
Performance Parameters Measurement precision: High accuracy position measurement Fault diagnosis: Detect probe open circuit, short circuit and signal failure Data upload: Transmit position data and alarm status to rack interface module
Structural Characteristics Standard rack card metal casing. Internal signal conditioning, sampling and position calculation circuit. Backplane connector for power supply and rack communication. Front panel probe signal input terminals and LED indicators. Front panel locking structure.
Working Principle The module receives analog gap voltage signal from proximitor. Internal circuit samples and converts voltage signal into linear position value. Measured position is compared with preset alarm and trip limits. The module generates protection logic signal and uploads all position data and channel status to rack interface module.
Installation Requirements Insert module into assigned slot of 3500 rack and lock front panel. Confirm backplane connector fully contacts rack backplane. Connect proximitor output signal cable to front panel input terminals. Set probe linear range and protection threshold via configuration software. Check channel status indicators after power on.
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