Emerson / Westinghouse 2840A86G05
Description
Core Features
High-precision analog signal sampling with built-in anti-interference filter circuit, adapting harsh industrial EMC environment;
Standard rack-mounted plug-in design, hot-swappable in compatible Emerson/Westinghouse system backplane;
Multi-channel configurable analog I/O, supports industry-standard 4–20mA current & 0–10V voltage analog signals;
Overvoltage, overcurrent and reverse connection protection for field wiring port;
Digital fault self-diagnosis, onboard LED indicator for channel status, power supply and module failure alert;
Wide-range working temperature for cabinet-mounted industrial environment.
2. Technical Specification Parameters（规格参数）
2.1 Electrical Parameters
| Item | Specification |
|---|---|
| Input Signal Type | DC 4~20mA analog current / DC 0~5V, 0~10V analog voltage |
| Number of Analog Channels | Multi-channel configurable (standard 8CH/16CH field wiring terminal) |
| A/D Conversion Resolution | 16-bit high precision ADC |
| Measurement Accuracy | ≤ ±0.1% FS (Full Scale) at rated working condition |
| Internal Working Power | +24VDC system bus power supply (from control rack backplane) |
| Power Consumption | Max 8.5W per single module |
| Field Port Protection | ±35V surge overvoltage protection, short-circuit auto-fuse protection |
2.2 Environmental & Mechanical Spec
| Item | Parameter |
|---|---|
| Operating Temperature | 0℃ ~ +60℃ (in control cabinet); Storage: -40℃ ~ +85℃ |
| Relative Humidity | 5%~95% RH, non-condensing |
| Vibration Resistance | IEC60068-2-6 industrial grade anti-vibration |
| Mounting Form | Standard DIN rail / 19-inch control rack plug-in installation |
| Overall Dimension | Approx. 225mm(H) ×120mm(W) ×55mm(D) |
| Net Weight | ~0.92kg |
| EMC Compliance | IEC61000-6-2 industrial environment electromagnetic compatibility standard |
2.3 Interface & Communication
Backplane bus: proprietary Emerson/Westinghouse internal parallel system bus for data exchange with CPU mainframe;
Field terminal: screw-type wiring terminal block for field sensor analog cable connection;
Indicator: Power ON LED, Module RUN LED, Channel Fault LED per sampling channel.
3. Application & Order Information
Replacement Type: Original spare part for Westinghouse WDPF/MAX1000 DCS control system;
Compatible System: Emerson Ovation & legacy Westinghouse industrial automation platform;
Compliance: CE certified for industrial control equipment, meets North American UL industrial safety standard.
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