Part Code Definition

A6210 fixed standard part number for axial displacement monitor under AMS6500 platform, no version suffix; collocation vibration card A6110(shaft relative vibration), A6120(casing absolute vibration), cannot cross replacement.

Technical Specifications

Backplane power: -26.7VDC supplied by AMS6500 rack backplane, max power consumption ≤6W

Channel setup: 2 independent differential input channels for EPRO 6422/6423/6424/6425 eddy current probe + preamplifier assembly

Input signal range: 0~-22VDC sensor input, low-frequency response 0~8Hz(-3dB) for slow thermal expansion displacement signal

Signal output: per-channel optional 4~20mA/0~10VDC proportional analog output for DCS access; front SMB buffered signal output for on-site oscilloscope debugging

Measurement accuracy: full scale error ≤±1%FS, high precision micron-level displacement resolution

Ambient rating: operating 0℃~+65℃, storage -30℃~+85℃, 5%~95%RH non-condensing, anti-vibration conform IEC60068 standard

Dimension & Weight: 30×128.4×160mm(6TE/3HE), net weight≈0.32kg

Interface & Communication Layout

Front panel: 2 SMB probe signal input ports; LED indicators(POWER/RUN/ALARM/DANGER); RS232 debugging serial port for local parameter configuration

Rear golden finger: AMS6500 dedicated backplane bus, upload real-time displacement data and fault code to rack main controller

Rear terminal block: 4~20mA analog output terminals + alarm/trip dry contact relay output for equipment interlock protection

Core Functions

Thrust Position Mode: Monitor turbine rotor axial float, prevent thrust tile abrasion caused by excessive axial shift, over-limit trigger trip interlock

Differential Expansion Mode: Detect thermal expansion difference between turbine rotor and cylinder, avoid rotor-cylinder friction during unit startup/shutdown temperature change

Rod Drop Mode: Track reciprocating compressor piston rod wear displacement, early warning of packing failure and rod breakage risk

Independent configurable Alert/Danger threshold per channel; full self-diagnosis for probe open/short-circuit, module power failure, abnormal loop, fault alarm uploaded to AMS6500 host and DCS system; online hot swap without cabinet power cut, unaffected channel keeps continuous monitoring.

Application Scenarios

Thermal power plant steam turbine thrust & differential expansion safety monitoring; petrochemical centrifugal compressor shaft displacement protection; reciprocating compressor piston rod drop monitoring; AMS6500 system cabinet spare replacement for gas turbine unit.

Operation & Maintenance Notes

Only install into standard AMS6500 single slot, confirm rack bus specification before plugging; original matched 642X series eddy current probe mandatory for measurement accuracy; shielded sensor cable separated from high-voltage power cable during wiring to eliminate EMI drift; complete working mode selection and alarm threshold setup via AMS6500 upper computer software after power-on; regularly inspect front fault lamp and DCS historical alarm log, fasten rear terminal screws periodically.