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      1756-L61S

      GuardLogix Primary Controller
      In Stock
      Ships by Thursday, November 12
      Fast Shipping Available
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Allen-Bradley 1756-L61S is a GuardLogix 5560 primary controller with separate standard and safety memory. Together with the adjacent 1756-LSP safety partner, it executes integrated standard and SIL 3/PLe safety control.

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      Technical specifications for 1756-L61S

      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC Systems
      • Spare Part Number:
        1756-L61S
      • Estimated shipping dimensions:
        3.5x14x14.5cm
      • Weight:
        0.38 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Standard memory:
        2 MB
      • Safety memory:
        1 MB
      • Required safety partner:
        1756-LSP
      • Maximum controller connections:
        250
      • Built-in communication port:
        RS-232 serial
      • Backplane current at 5.1 V DC:
        1.2 A
      • Backplane current at 24 V DC:
        14 mA
      • Power dissipation:
        3.5 W
      • Thermal dissipation:
        11.9 BTU/h
      • Battery:
        1756-BA2
      • Operating temperature:
        0-60 C
      • Storage temperature:
        -40-85 C
      • Relative humidity:
        5-95%, noncondensing
      View as PDF Ask for Quote

      Information

      Overview Manuals Common Applications Product Precautions
      Allen-Bradley 1756-L61S is a GuardLogix 5560 primary controller with separate standard and safety memory. Together with the adjacent 1756-LSP safety partner, it executes integrated standard and SIL 3/PLe safety control.
      • Maintains the coordinated standard and safety task architecture
      • Creates the safety partnership across adjacent chassis slots
      • Controls safety I/O through the validated GuardLogix project
      • Provides controller and safety-partner status for commissioning

      1756-L61S operates with 1756-LSP safety partner, 1756 ControlLogix chassis, Guard I/O or safety I/O network, validated GuardLogix application.
      Typical engineered duties include 1756-L61S safety-controller replacement, Machine emergency-stop logic, Guarding and access-control functions, Safety I/O validation and proof testing.

      Important Notice: Do not return 1756-L61S to safety service until controller/partner placement, firmware, safety signature, I/O ownership and the validated safety test all agree with the approved machine record.

      Apter Power 1756-L61S Manuals and Guides

      Important Notice: The first document is an Apter Power 1756-L61S model-specific technical reference. The second is a distinct document for installation, configuration or system engineering.

      1756-L61S 1756-L61S safety-controller replacement
      Maintains the coordinated standard and safety task architecture
      1756-L61S Machine emergency-stop logic
      Creates the safety partnership across adjacent chassis slots
      1756-L61S Guarding and access-control functions
      Controls safety I/O through the validated GuardLogix project
      1756-L61S Safety I/O validation and proof testing
      Provides controller and safety-partner status for commissioning
      Read the applicable Allen-Bradley installation instructions before work. Verify 1756-L61S and the installed-system configuration.
      1
      Back up the safety-locked project and record the safety signature.
      2
      Reserve the slot immediately to the right for the matched 1756-LSP.
      3
      Match firmware revisions between the primary controller and safety partner.
      4
      Complete the prescribed safety validation after project download or hardware replacement.
      5
      Commission 1756-L61S under controlled conditions and retain the completed functional-test record before release.

      Technical notes

      Install 1756-L61S as the GuardLogix primary controller with a 1756-LSP in the immediately adjacent right-hand slot. Record the safety signature and complete application validation after any controller or partner change.

      FAQ View All FAQ

      • Where must the 1756-LSP be installed for 1756-L61S?
        Place the safety partner in the slot immediately to the right of the primary controller in the same 1756 chassis.
      • Which firmware check is mandatory for 1756-L61S?
        The primary controller and 1756-LSP must use matching major and minor firmware revisions supported by the validated project.
      • How is the safety project protected on 1756-L61S?
        Use the approved safety locking and signature process, then record the signature with the validated application.
      • What must be backed up before replacing 1756-L61S?
        Archive the complete GuardLogix project, firmware, safety signature, controller properties, I/O tree and validation record.
      • Can 1756-L61S run safety without a 1756-LSP?
        No. The GuardLogix 5560 safety architecture requires the paired 1756-LSP safety partner.
      • How should safety I/O be checked after fitting 1756-L61S?
        Confirm ownership and connection status, then execute the approved proof test for every affected input, output and safety function.
      • What diagnostics must be clear before placing 1756-L61S in Run?
        Resolve primary-controller, safety-partner, safety-task, signature and safety-I/O faults before enabling operation.
      • Can another GuardLogix controller replace 1756-L61S without revalidation?
        No. Any catalog, firmware, project or safety-signature change requires the site-defined migration and validation process.
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