Product Description
Emerson EC20-4DA Analog Output Module
- Manufacturer: Emerson
- Model/Part Number: EC20-4DA
- Description: DeltaV EC20 Series Analog Output Expansion Module, 4-Channel, Voltage/Current Output
Overview
- The Emerson EC20-4DA is an analog output expansion module for the DeltaV EC20 Series Programmable Logic Controller (PLC) system. It provides 4 channels for analog voltage or current outputs, designed for precise control of field devices such as actuators, valves, and variable frequency drives. The module is used in industrial automation applications, including oil and gas, chemical, power generation, and manufacturing, to deliver reliable control signals.
Technical Specifications
| Specification | Details |
|---|---|
| Model | EC20-4DA |
| Series | DeltaV EC20 |
| Type | Analog Output Expansion Module, 4-Channel |
| Output Channels | 4 analog outputs |
| Output Types | -10V to +10V, 0-20 mA, 4-20 mA |
| Resolution | 12-bit |
| Accuracy | ±1% of full scale |
| Conversion Time | 10 ms per channel (40 ms for all 4 channels) |
| Power Supply | 24 VDC, supplied by main module |
| Power Consumption | Approximately 2.5 W |
| Operating Temperature | -5°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Relative Humidity | 5% to 95%, non-condensing (30 ± 2°C) |
| Protection Rating | IP20 |
| Airborne Contaminants | ISA-S71.04-1985 Class G3 |
| Dimensions | 58 mm (L) x 90 mm (W) x 82 mm (H) |
| Weight | Approximately 240 g |
| Mounting | T-type DIN rail |
| Certifications | CE, RoHS |
| System Compatibility | DeltaV EC20 Series PLCs (e.g., EC20-2012BTA, EC20-3232BRA) |
Additional Information
- Functionality: The EC20-4DA supports multiple output types (-10V to +10V, 0-20 mA, 4-20 mA) for flexibility in controlling various analog field devices. With 12-bit resolution and ±1% accuracy, it ensures precise signal delivery. The module connects to the EC20 main module via the system bus, drawing power and communicating data seamlessly. It is programmed and monitored using the ControlStar software, which supports configuration and diagnostics.
- Environmental Durability: Designed for industrial environments, the EC20-4DA operates reliably within a temperature range of -5°C to +55°C and withstands humidity, shock, and vibration per EC20 series standards. Its compact design and IP20 rating make it suitable for control cabinets in demanding conditions.