Allen-Bradley 1746-HS
Allen-Bradley 1746-HS
Allen-Bradley 1746-HS
Allen-Bradley 1746-HS
Allen-Bradley 1746-HS
Allen-Bradley 1746-HS
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1746-HS

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Allen-Bradley 1746-HS is an SLC 500 IMC 110 single-axis closed-loop servo controller for compatible industrial positioning applications.
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Technical specifications for 1746-HS

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1746-HS
  • Product Family:
    SLC 500
  • Product Type:
    IMC 110 Single-Axis Servo Controller
  • Stock:
    1
  • Axes:
    1
  • Control Type:
    Closed-loop servo
  • Fast Inputs:
    3, 24V DC
  • Fast Outputs:
    1, 24V DC
  • Maximum Feedback Frequency:
    300 kHz at 0° quadrature
  • SLC I/O Poll Interval:
    4.8 ms
  • Controlled Axis:
    1
  • Fast Digital Inputs:
    3
  • Fast Digital Output:
    1
  • Fast Input Recognition Time:
    Within 3.2 ms
  • SLC Digital Inputs:
    5
  • SLC Digital Outputs:
    5
  • SLC Input Image Transfer:
    64 bits per I/O scan
  • Termination Panel:
    1746-HT
  • 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 Specifications Motion Integration Commissioning & Safety Application
  • Single-axis closed-loop servo control for compatible SLC 500 systems
  • Quadrature feedback with dedicated fast input and output functions
  • Motion operation coordinated through the SLC application and IMC programming tools

1746-HS provides one axis of closed-loop positioning control in a compatible SLC 500 architecture.

The axis depends on the complete processor, chassis, drive, motor, feedback, termination, field-power, motion-program and safety configuration.

Replacement should begin with backups and identification records, followed by guarded tests of feedback, direction, homing, limits, tuning, stops, faults, and recovery.

Availability: Official migration literature does not list a direct replacement; current lifecycle status and supply are confirmed during quotation.

Allen-Bradley 1746-HS SLC 500 IMC 110 Motion Controller Resources 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.

  • One closed-loop servo axis
  • Three 24V DC fast inputs and one 24V DC fast output
  • Maximum documented feedback frequency: 300kHz at 0° quadrature
  • Match the SLC processor, local chassis, drive, motor and feedback device
  • Document termination hardware, field power, shields and every fast-I/O assignment
  • Restore approved motion and SLC programs before enabling the axis
  • Verify feedback direction and command polarity at reduced risk
  • Prove homing, software limits, hardware limits and emergency-stop action
  • Retest tuning, following error, faults and power-cycle recovery before production
  • Single-axis closed-loop positioning machines controlled from an SLC 500 system
  • Encoder-based indexing and registration axes using the module’s fast inputs and outputs
  • Programmable motion sequences requiring homing, position profiles and following-error monitoring
Description
1746-HS is an Allen-Bradley IMC 110 single-axis closed-loop servo controller for the SLC 500 platform. The official system overview identifies one axis, three fast inputs, one fast output, quadrature feedback, and a 4.8ms module update time.

A compatible application depends on the SLC processor and local chassis, feedback device, drive and motor, 24V DC field supply, fast-I/O assignments, termination hardware, motion program, travel limits, and machine safety circuit.

Before replacement, archive the motion and SLC programs, document axis scaling and tuning, capture feedback and I/O wiring, record firmware and module identification, and verify safe mechanical conditions before any powered test.
Revisions

Revision Part #

Also known as

1746-HS Ser A
1746-HS/A, Series A, Rev A
Alternative Names
1746-HS 1746 HS 1746HS AB 1746-HS Allen-Bradley 1746-HS Rockwell Automation 1746-HS
Technical notes
1746-HS service requires complete motion backups, compatible local SLC hardware, verified feedback and fast-I/O wiring, safe limits, tuning, stops, and guarded commissioning.
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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.
Can Allen-Bradley 1746-HS be replaced with 1746-HSRV without engineering changes?
Do not assume a drop-in replacement. Compare manuals, processor support, data tables, wiring, termination hardware, programming tools, motion behavior, and the complete safety design.
What must be backed up before replacing Allen-Bradley 1746-HS?
Archive the SLC and motion programs, axis scaling, tuning, limits, homing, motion profiles, fault actions, feedback configuration, fast I/O, and module identification.
Why might the axis move in the wrong direction after replacing Allen-Bradley 1746-HS?
Check motor phasing, command polarity, encoder direction, feedback scaling, drive polarity, wiring, program sign conventions, and the documented positive machine direction.
What should be checked when Allen-Bradley 1746-HS cannot establish position feedback?
Inspect encoder power, signal pairs, shield, connector and cable condition, input selection, quadrature phasing, grounding, frequency limits, and diagnostic status.
Can existing motion parameters for Allen-Bradley 1746-HS be trusted without a mechanical test?
No. Use the backup as a controlled baseline, then verify travel, limits, homing, tuning, following error, stops, and load behavior at reduced risk.
What hardware records are needed to source Allen-Bradley 1746-HS?
Provide the complete module label, processor and chassis catalogs, drive and motor, encoder, termination panel, interconnect cable, firmware, and clear wiring photographs.
What final test is required before returning Allen-Bradley 1746-HS to production?
Prove direction, homing, limits, commanded moves, repeatability, following error, fast I/O, emergency stop, drive faults, power recovery, and the guarded machine cycle.

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