+86 13313703791
+86 13313703791
seren@ymgkplc.com
Description
Product Overview
ABB DSAO120A (3BSE018293R1) is an analog output module developed for ABB Advant AC400 distributed control system. It receives digital control commands from the DCS main controller and converts digital signals into standard analog current or voltage signals to drive field actuators such as control valves, regulators and frequency converters. This module is a vital link for closed-loop process control, widely adopted for maintenance replacement and spare stock of obsolete ABB DCS systems.
Series
This module belongs to ABB Advant AC400 DCS control system series. It is a mature modular process control hardware platform extensively deployed in energy, chemical, metallurgy and heavy industries. The AC400 series adopts rack-based modular design, featuring high system stability and good hardware interchangeability to support long-term continuous production operation.
Product Features
- 8-channel independent analog output design, realizing multi-point synchronous control of field equipment.
- Supports universal industrial output signals: 4-20mA and 0-10V DC, compatible with most field actuators.
- Built-in EMC protection circuit, strong anti-electromagnetic interference capability for harsh industrial cabinet environments.
- Standard plug-in rack structure, convenient for quick disassembly and on-site replacement to shorten maintenance downtime.
- Conformal coated printed circuit board, with dustproof, moisture-proof and anti-corrosion performance.
- Integrated self-diagnosis function to detect channel short circuit, open circuit and module abnormal status.
- Stable signal output precision, ensuring accurate adjustment of process parameters.
Product Parameters
- Part Number: DSAO120A / 3BSE018293R1
- Number of Channels: 8 analog output channels
- Output Signal: 4-20mA, 0-10V DC
- Power Supply: Powered by system backplane
- Operating Temperature: -20℃ ~ +70℃
- Storage Temperature: -40℃ ~ +85℃
- Relative Humidity: 5% ~ 95% RH, non-condensing
- Protection Class: IP20 (Indoor cabinet installation)
- Electrical isolation: Standard industrial isolation
Product Specifications
- Installation: Plug-in module for AC400 standard rack
- Dimensions: 327.6 × 14.4 × 236.7 mm
- Weight: Approx. 0.52 kg
- Compatibility: Fully compatible with ABB Advant AC400 system hardware
- Compliance: Meets industrial EMC electromagnetic compatibility standards
- Continuous operation: Suitable for 24/7 long-term industrial operation
Function
The ABB DSAO120A 3BSE018293R1 converts digital control instructions transmitted by the DCS controller into standard analog signals. These analog signals are sent to on-site executing units to realize continuous adjustment of flow, pressure, temperature and liquid level. It undertakes the output execution part of closed-loop automatic control and supports automatic regulation, remote operation and process interlock control.
Purpose
Used for fault replacement of original analog output modules, control cabinet transformation and spare parts inventory preparation of ABB Advant AC400 DCS system. It guarantees continuous automatic production of factories when the original output module fails, serving as an essential legacy spare part for old ABB DCS system maintenance.
Application Fields
- Thermal power plant boiler and auxiliary equipment DCS control
- Petrochemical, chemical plant process automatic control
- Metallurgy, cement and building materials production line control system
- Water treatment and environmental protection engineering automation
- Oil & gas station process control equipment
- Renovation and maintenance of aging ABB AC400 distributed control systems
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