Description
Densan DVE‑540(9315A)
Technical Specifications: Bus compliance: VME ANSI/IEEE 1014 Mechanical format: 6U single‑slot VME module Input signal: analog voltage, analog current ADC conversion resolution: 16‑bit Galvanic isolation rating: 1500 VAC between field circuit and control bus circuit Operating temperature: 0 ℃‑55 ℃ Storage temperature: -40 ℃‑85 ℃ Relative humidity: 5%‑95% non‑condensing Protection grade: IP20 Backplane connector: DIN 41612 J1
Functional Features: Multi‑channel galvanically isolated analog input. 16‑bit high‑precision analog‑digital conversion. Programmable input range setting for each channel through VME bus register. On‑board low‑pass filter suppresses high‑frequency site noise. Hardware automatic self‑calibration function compensates temperature drift error. Front‑panel LED indicators for power supply and fault alarm status. VME bus interrupt signal output once ADC sampling completes. Complete power‑on self‑diagnosis routine.
Application Scenarios: Semiconductor equipment temperature and pressure parameter monitoring, industrial precision process analog measurement system, automated test equipment signal acquisition cabinet, new‑energy industry test‑stand monitoring unit, laboratory pilot‑plant VME control rack, precision manufacturing equipment condition monitoring system.
Performance Parameters: Full‑scale measurement accuracy: ±0.05% Per‑channel sampling rate is configurable through register setting Vibration resistance: 10 Hz‑150 Hz, 0.5 g Shock resistance: 10 g peak acceleration, 11 ms pulse time MTBF value: 196000 hours
Material Composition: Front‑panel material is oxidation‑resistant aluminum alloy. Main PCB substrate is FR‑4 high‑temperature‑resistant glass‑fiber epoxy material. Backplane connector pins adopt gold‑plated copper alloy. Signal conditioning and ADC components are industrial‑grade high‑precision devices. Fastening hardware adopts nickel‑plated steel.
Structural Features: 6U single‑slot VME plug‑in circuit‑board structure. Metal front panel equipped with locking ejector handles and LED status indicators. Rear multi‑pin gold‑plated DIN connector mates with VME rack backplane. Printed‑circuit‑board layout creates strict separation barrier between analog signal area and digital logic area. Analog signal traces follow impedance‑controlled routing specification. Ventilation openings are reserved for passive heat dissipation.
Working Principle: Field analog voltage or current signal accesses on‑board signal conditioning circuit. Signal passes through filtering and galvanic isolation processing and transmits to high‑precision ADC chip. ADC converts continuous analog physical signal into discrete digital numerical value. VME main controller reads measurement result from board hardware registers over backplane bus. On‑board self‑calibration circuit automatically offsets measurement deviation caused by ambient temperature fluctuation. Fault information can be retrieved from dedicated VME‑mapped registers.
Installation Requirements: Insert DVE‑540 module into specified empty slot of 6U VME rack chassis. Lock ejector handles and tighten front‑panel mounting screws. Maintain good ventilation and heat‑dissipation environment inside control cabinet. Use shielded twisted‑pair cables for all analog‑signal field wiring. Analog signal cables must maintain sufficient physical distance from high‑voltage power cables. Disconnect rack main power supply before installation or removal of this board. Perform static electricity elimination before touching bare printed‑circuit‑board.
