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Technical specifications for SC-UCNN11
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Manufacturer:Honeywell
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Product Category:DCS Systems
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Spare Part Number:51307573-176
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Estimated shipping dimensions:5.6x12.6x13cm
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Weight:0.26 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Controller configuration:Redundant
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Rated supply:24 Vdc +/-25%
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Input range:18 to 30 Vdc
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Supply ripple:120 mVpp maximum
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Input current:1.3 A maximum at 30 Vdc with 9 I/O modules
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Power without expansion:5.76 to 6.72 W
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Power with expansion:6.96 W
Information
Overview
Manuals
Common Applications
Product Precautions
Honeywell SC-UCNN11 is a redundant ControlEdge RTU controller used in paired remote-automation installations that require controller availability.
- Provides redundant RTU processing
- Coordinates primary and secondary controllers
- Maintains remote communications
- Supports external I/O expansion
SC-UCNN11 operates with Matched SC-UCNN11 controller, Redundant RTU backplane, Independent 24 Vdc feeds, ControlEdge I/O expansion.
Its engineered use includes Redundant pipeline RTUs, Critical remote compressor sites, Water transmission stations, Unattended production facilities.
Important Notice: Confirm the complete SC-UCNN11 marking, installed-system configuration, field connections and controlled functional test before commissioning or replacement.
Apter Power SC-UCNN11 Manuals and Guides
Apter Power SC-UCNN11 Product Technical Reference PDFHoneywell SC-UCNN11 Official Technical Manual PDF
The first document is an Apter Power model-specific technical reference. The second supports installation, configuration and engineering verification for SC-UCNN11.
Redundant pipeline RTUsProvides redundant RTU processing
Critical remote compressor sitesCoordinates primary and secondary controllers
Water transmission stationsMaintains remote communications
Unattended production facilitiesSupports external I/O expansion
Read the applicable Honeywell instructions before work. Verify SC-UCNN11 and the installed ControlEdge RTU configuration.
1Verify the complete SC-UCNN11 marking and its assigned ControlEdge RTU position before work.
2Isolate the applicable power and field energy before disconnecting SC-UCNN11.
3Protect SC-UCNN11 connectors and electronic assemblies with approved ESD controls.
4Record the installed wiring, channel assignment and configuration before replacement.
5Match Matched SC-UCNN11 controller and Redundant RTU backplane to the documented system arrangement.
6Commission SC-UCNN11 with controlled status, signal and diagnostic checks.
7Retain the final redundant pipeline rtus functional-test result in the maintenance record.
Technical notes
Confirm controller pairing, independent supply paths and redundancy status before transferring the active role or loading a revised application.
FAQ View All FAQ
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Does SC-UCNN11 match Matched SC-UCNN11 controller in a Redundant pipeline RTUs installation?Verify the complete SC-UCNN11 marking, the documented ControlEdge RTU position and the installed Matched SC-UCNN11 controller before fitting the assembly.
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How should SC-UCNN11 be wired when it must provides redundant rtu processing?Isolate the circuit, identify every terminal and reproduce the approved polarity, shield and channel assignment for SC-UCNN11; then continuity-test the affected path.
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Which ControlEdge RTU records should be captured before removing SC-UCNN11?Record the as-found wiring, installed position, active configuration and diagnostic state associated with SC-UCNN11 before disconnection.
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What controlled test confirms that SC-UCNN11 can coordinates primary and secondary controllers?Apply the approved field or simulated stimulus, observe the ControlEdge RTU indication and confirm the intended response without bypassing the normal interlocks.
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Which Redundant RTU backplane condition should be checked when SC-UCNN11 reports an abnormal state?Check the Redundant RTU backplane supply, seating and connection first, then compare channel diagnostics with the recorded SC-UCNN11 baseline.
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Can SC-UCNN11 be moved directly into Critical remote compressor sites without validating ControlEdge I/O expansion?No. Confirm the ControlEdge I/O expansion, revision, connection scheme and ControlEdge RTU configuration before transferring SC-UCNN11 to that duty.
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What maintenance evidence is required after SC-UCNN11 is used for Water transmission stations?Retain the nameplate record, corrective action, final diagnostics and a controlled water transmission stations functional-test result for SC-UCNN11.
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How should SC-UCNN11 be returned to service in Unattended production facilities?Restore power under control, verify maintains remote communications, exercise the intended signal path and release SC-UCNN11 only after the ControlEdge RTU remains in its approved operating state.
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