1762-L40BWA
1762-L40BWA
1762-L40BWA
1762-L40BWA
1762-L40BWA
1762-L40BWA
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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power reviews program recovery, relay-group wiring, physical condition, and official legacy records before sourcing.

1762-L40BWA

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An AC-powered MicroLogix 1200 base, 1762-L40BWA coordinates DC sensing and grouped relay switching across forty embedded points in legacy machine panels.
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Technical specifications for 1762-L40BWA

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1762-L40BWA
  • Product Family:
    MicroLogix
  • Product Type:
    MicroLogix 1200 40-Point AC-Powered Controller
  • Stock:
    1
  • Controller family:
    MicroLogix 1200
  • Input power:
    120/240 V AC
  • Embedded inputs:
    20 standard plus 4 fast 24 V DC inputs
  • Embedded outputs:
    16 relay outputs
  • Embedded I/O total:
    40 points
  • Expansion:
    MicroLogix 1200 1762 I/O support
  • Communication:
    Integrated serial channel
  • Weight:
    1.1 kg
  • Estimated shipping dimensions:
    16x8.7x9cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Singapore
  • 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 Sensor Supply Relay Grouping Expansion & Serial Product Applications

Features:

  • Forty embedded points: 24 DC inputs and 16 relay outputs
  • AC-powered base: documented 120/240 V AC controller supply
  • Fast input capability: four embedded inputs for supported high-speed functions
1762-L40BWA consolidates logic, 24 V DC input acquisition and relay output control in one MicroLogix 1200 base.

Its relay commons, fast-input assignments, program state and serial dependencies make a field replacement more than a mechanical exchange.

A controlled recovery plan preserves the project, Series and firmware, expansion map, supply wiring, relay groups, network settings and acceptance tests.

Availability of 1762-L40BWA is subject to Apter Power inventory and sourcing confirmation.

Verified resources for 1762-L40BWA:

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.

  • Controller input: verify the 120/240 V AC branch and protection.
  • DC sensors: record the external 24 V DC source and commons.
  • Fast inputs: preserve wiring and configuration for the four high-speed points.
  • Grounding: retain the official enclosure and conductor arrangement.
  • Common groups: label the supply feeding each relay group.
  • Load type: record voltage, current and inrush for every circuit.
  • Suppression: preserve approved protection across inductive loads.
  • Acceptance: test commanded state and field response point by point.
  • Expansion I/O: retain module order, addressing and power information.
  • Serial settings: save protocol, node, rate and cable details.
  • Program archive: verify a restorable file before shutdown.
  • Firmware: match the controller Series and project requirements.
  • Compact machines: control embedded DC inputs and mixed relay loads.
  • Standalone equipment: execute local sequences with serial supervision.
  • Brownfield support: maintain approved MicroLogix 1200 applications during migration planning.
Description
Relay-driven equipment with a separate DC sensor supply can use 1762-L40BWA as its MicroLogix 1200 control base. The controller brings embedded inputs, fast-input capability and grouped relay outputs into one fixed terminal layout while retaining supported 1762 expansion.

Field behavior on 1762-L40BWA depends on the relationship between the AC controller supply, DC input commons and the external voltages switched by each relay group. Those circuits remain electrically distinct even though their logic is executed by one controller program.

A maintenance exchange for 1762-L40BWA should begin with the validated ladder archive and a terminal-level record of every common and load. Expansion-module order, serial communication and fast-input use must also be preserved before the discontinued base is disturbed.
Revisions

Revision Part #

Also known as

1762-L40BWA Series A
1762-L40BWA/A, Series A
1762-L40BWA Series B
1762-L40BWA/B, Series B
1762-L40BWA Series C
1762-L40BWA/C, Series C
Alternative Names
Allen-Bradley 1762-L40BWA MicroLogix 1200 40-point AC controller 1762L40BWA AB MicroLogix relay-output base
Technical notes
Relay-common mapping is the highest replacement risk for 1762-L40BWA. Label the supply feeding each output group, record load voltage and inrush, and preserve suppression on inductive devices; do not reconnect production loads until commanded state and field response have been tested point by point under the approved maintenance procedure.
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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 several loads controlled by 1762-L40BWA stop together while other relay outputs continue working?
Trace the common and field supply shared by the affected relay group, then inspect upstream protection and terminals before replacing the controller base.
What should happen if the running program cannot be uploaded from 1762-L40BWA before an outage?
Pause the exchange until a validated archive or approved migration file exists; terminal wiring alone cannot reconstruct sequencing, timers, addresses or communication settings.
How should missed pulses on the fast inputs of 1762-L40BWA be investigated after replacement?
Compare the restored project configuration, input wiring, sensor supply and filter or high-speed settings with the original application before changing sensors.
Why might a serial HMI fail after 1762-L40BWA has been restored with apparently correct I/O?
The program can run while serial protocol, node settings, cable details or controller addresses remain wrong; restore the recorded communication configuration separately.
What can leave every DC input on 1762-L40BWA inactive even though the controller itself is powered?
Check the separate sensor supply, input commons, polarity and terminal continuity; the AC controller supply does not provide field power to the DC sensors.
How should a future migration from 1762-L40BWA preserve relay-load behavior?
Create a point-by-point conversion schedule that records commons, field voltages, current and inrush, suppression and startup states before selecting new output hardware.