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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power supports archive-focused verification, terminal documentation, condition review, and migration-aware sourcing for this fixed controller.

1761-L16BWA

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Fixed-I/O machinery uses 1761-L16BWA to combine ten DC sensor inputs and six relay-load commands in a compact AC-powered MicroLogix 1000 base.
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Technical specifications for 1761-L16BWA

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1761-L16BWA
  • Product Family:
    MicroLogix
  • Product Type:
    MicroLogix 1000 16-Point AC-Powered Controller
  • Stock:
    1
  • Controller family:
    MicroLogix 1000
  • Input power:
    120/240 V AC
  • Embedded inputs:
    10 x 24 V DC
  • Embedded outputs:
    6 relay outputs
  • Embedded I/O total:
    16 points
  • Architecture:
    Fixed I/O controller
  • Weight:
    0.4 kg
  • Estimated shipping dimensions:
    8x12x7.3cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Input Wiring Relay Loading Recovery Path Product Applications

Features:

  • Fixed 16-point base: ten DC inputs and six relay outputs
  • AC-powered controller: documented 120/240 V AC supply
  • Compact legacy control: embedded logic and I/O for standalone equipment
1761-L16BWA is a self-contained MicroLogix 1000 solution for modest sensor and relay-load counts.

Because its I/O is fixed, terminal mapping, common grouping and the stored program define the real replacement scope.

A service package should join label photos with the program, software and cable access, power drawing, I/O list and functional acceptance steps.

Availability of 1761-L16BWA is subject to Apter Power inventory and sourcing confirmation.
Allen-Bradley 1761-L16BWA MicroLogix 1000 16-Point AC-Powered Controller Manuals, Datasheets, and Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • DC source: identify the 24 V DC sensor supply.
  • Commons: preserve polarity and grouping at the terminal block.
  • Filters: record any application-sensitive input timing.
  • Labels: tie each wire number to the controller address.
  • Voltage: identify the supply switched by each relay.
  • Current and inrush: compare every load with official limits.
  • Suppression: retain approved protection on inductive devices.
  • Test: verify controller command and field response separately.
  • Program: upload and validate the ladder file before shutdown.
  • Access: retain programming software, cable and password information.
  • Wiring: create a terminal-level I/O conversion schedule.
  • Migration: prove equivalent logic and safe field behavior before cutover.
  • Standalone machines: execute compact local logic with fixed I/O.
  • Relay control: switch six documented field loads from the embedded base.
  • Brownfield maintenance: sustain MicroLogix 1000 applications during planned migration.
Description
Small standalone equipment can concentrate its ladder logic and fixed terminal set in 1761-L16BWA. The MicroLogix 1000 base accepts the machine sensor inputs and switches relay-connected loads without providing a modular local expansion path.

Because 1761-L16BWA is fixed I/O, its terminal assignments and program references are inseparable during service. The controller supply, DC sensor reference and relay field circuits must be documented independently even though they share the same enclosure.

As a discontinued fixed-I/O base, 1761-L16BWA belongs in a maintenance plan that links controller condition with the machine application and terminal schedule. Any need for additional signals should be handled through an engineered migration rather than an unverified extension.
Alternative Names
Allen-Bradley 1761-L16BWA MicroLogix 1000 16-point AC controller 1761L16BWA AB fixed 16-point relay PLC
Technical notes
Program loss is the main service risk for 1761-L16BWA because the fixed terminal map does not reveal the stored ladder sequence. Confirm a restorable archive, programming access and password status, then photograph every input and relay terminal before hardware removal from the operating production panel.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why can a relay inside 1761-L16BWA click while the connected field load remains off?
Trace the relay common, external field supply and load wiring, then compare the commanded address with the physical terminal before replacing the controller.
What can leave all sensor inputs on 1761-L16BWA inactive while the controller power indicator remains on?
The AC-powered base still depends on a separate DC sensor circuit; check that supply, its common, polarity and terminal continuity.
When a machine needs additional signals, can 1761-L16BWA accept local expansion modules?
No local modular expansion is provided for this fixed MicroLogix 1000 base; plan a controller and I/O migration instead of extending the terminal set.
Why might an HMI stop communicating after 1761-L16BWA is replaced even though the ladder runs?
Restore the recorded serial settings, cable method and controller addresses from the validated project; logic execution does not prove the external communication path.
How should 1761-L16BWA be documented before conversion to a modern controller?
Build a sixteen-point schedule linking every wire, common, field voltage, load and ladder address, then test the converted sequence against the original machine.
What is the safest response when no verified program archive exists for 1761-L16BWA?
Keep the operational controller in place if possible, recover the application with approved tools, and do not assume a blank spare can reproduce machine behavior.

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