ABB DSAO120A 3BSE018293R1 | 3BSE018293R1 Legacy DCS Spare Part With Warranty

ABB DSAO120A 3BSE018293R1 | 3BSE018293R1 Legacy DCS Spare Part With Warranty

  • Model: DSAO120A 3BSE018293R1
  • Brand: ABB
  • Series: S800 I/O
  • Core Function: Delivers continuous analog output signals from the controller to final field devices inside a distributed control system.
  • Product Type: Analog Output Module
  • Key Specs: 8 output channels, 4‑20 mA signal range, 24 VDC supply
  • Condition: New Surplus, Factory‑sealed
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Category: SKU: ABB DSAO120A 3BSE018293R1-NEW

Description

Key Technical Specifications

  • Part Number: 3BSE018293R1
  • Module Type: Analog Output
  • Number of Channels: 8
  • Signal Type: 4‑20 mA
  • Power Supply: 24 VDC
  • Backplane Bus: S800 I/O Fieldbus
  • Operating Temperature: 0 °C to +55 °C
  • Mounting: DIN‑rail S800 I/O rack installation

 

Application Scenarios & Pain Points

Unplanned shutdowns from failed analog output cards cost refineries thousands of dollars per hour of lost runtime. Spare‑part stock gaps often leave maintenance teams waiting weeks for cross‑border deliveries.

  • Petrochemical: Sends 4‑20 mA setpoint signals to control modulating valves on reactor feed lines.
  • Water Treatment: Adjusts chemical dosing pump output to maintain stable pH levels in distribution basins.
  • Power Generation: Provides output signals to boiler dampers within turbine auxiliary control racks.
  • Pulp & Paper: Regulates steam valve position during continuous paper drying cycles.

A mid‑west chemical plant recently experienced total loss of their reactor valve outputs after an old analog module shorted. Maintenance swapped in a DSAO120A 3BSE018293R1 within one shift. No re‑configuration was needed, and process parameters returned to target within minutes.

DSAO120A 3BSE018293R1

Related Products

  • DSAI130A 3BSE018295R1: 8‑channel analog input module, works alongside DSAO120A to create a complete analog I/O pair for closed‑loop control loops. Reads sensor feedback while DSAO120A sends out actuator commands.
  • DI810 3BSE008508R1: Digital input module for S800 racks. Captures discrete on/off field feedback signals, suited for interlock logic that runs separate from analog regulation.
  • DO810 3BSE008510R1: Digital output module. Controls solenoid valves and motor starters, used when you need on‑off actions instead of variable 4‑20 mA modulation.
  • TU810V1 3BSE013230R1: S800 I/O terminal base unit required for physical wiring connections to the DSAO120A module. Cannot mount the analog card without this matching base.
  • DP820 3BSE013234R1: Power distribution module, supplies stable 24 VDC power to a full row of S800 I/O modules including your DSAO120A card.
  • CI801 3BSE022366R1: Profibus DP communication interface, links the S800 I/O rack to your AC800M controller, essential for data exchange between CPU and DSAO120A.
  • DSAO110 3BSE018292R1: Older‑generation 4‑channel analog output alternative. Lower channel count, for smaller control loops where 8 outputs are unnecessary.

 

The Engineer’s Guide: Field Pitfalls to Avoid

  • Firmware Revision Mismatch: Always cross‑check your controller firmware version against the hardware revision. Older AC 800M firmware releases will fail to recognise newer module hardware, creating a permanent communications timeout. Download the hardware compatibility list before installation.
  • Wrong Terminal Base Installation: Never fit this module onto a terminal base intended for digital I/O cards. Incorrect TU hardware will expose output circuits to wrong wiring paths and risk internal burn‑out. Match to TU810V1.
  • ESD Damage During Swap: These analog output circuits contain sensitive signal chips. Even a small static discharge can damage output channels with no visible sign. Wear a grounded wrist strap every time you remove or insert the card into the rack —no oxidation on the backplane pins guarantees nothing against hidden static harm.

 

Frequently Asked Questions (FAQ)

  1. Can I hot‑swap ABB 3BSE018293R1 while the rack stays powered? Hot‑swap is supported on I/O racks. Keep in mind the analog output signal will drop momentarily during removal. Your field valve or pump will lose its setpoint value for a short window, so place the loop into manual control before swapping to avoid process upset.
  2. Will 3BSE018293R1 work with an older AC 800M controller version 5.0? Compatibility depends on your controller’s hardware library. Some older firmware builds do not include the device description file. You may need to import the latest hardware library package, or upgrade firmware to establish stable communication.
  3. What does new‑surplus condition mean for this ABB spare part? New‑surplus means the module was factory sealed and never installed into a control rack. It is not customer‑returned refurbished hardware. We complete a full function test before shipment to confirm all eight analog output channels operate correctly.
  4. Is the TU810V1 terminal base included with 3BSE018293R1? No. The analog output module and wiring terminal base are sold as separate items. If you reuse an existing rack, verify that your current TU base part number matches before ordering.
  5. How long is the typical lead‑time when ordering 3BSE018293R1? Stock‑available units ship within 1‑3 business days. If stock is exhausted, lead‑times for surplus spare inventory can stretch 3‑5 weeks, while original factory production orders carry far longer delivery windows.
  6. Can this module output 0‑10 V analog signals? No. The is built exclusively for 4‑20 mA current‑loop output signals. Voltage‑based actuator devices will require a different ABB analog output module model.

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