YXT115B 4890024-NK
YXT115B 4890024-NK
YXT115B 4890024-NK
YXT115B 4890024-NK
YXT115B 4890024-NK
YXT115B 4890024-NK
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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power guarantees fully tested, obsolete ABB power-electronic modules, offering a highly reliable source for legacy excitation and drive control replacement parts.

YXT115B 4890024-NK

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The ABB YXT115B 4890024-NK is system-level Basic Control Unit designed to deliver precise regulation, stable signal processing, and deterministic loop control within ABB’s legacy high-power drive networks and field current reference architectures.
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Technical specifications for YXT115B 4890024-NK

  • Manufacturer:
    ABB
  • Part Number:
    YXT115B 4890024-NK
  • Product Family:
    ABB Drives
  • Product Type:
    Basic Control Unit PCB Board
  • Stock:
    1
  • System Architecture Integration:
    High-Power Drive Control, Sami MegaStar, Tyrak, Advant OCS Systems
  • Microprocessor Clock/Execution:
    Deterministic Real-Time Loop Execution
  • Onboard Power Input Rails:
    Derived via Backplane (+5V DC / ±15V DC Control Voltage)
  • Galvanic Isolation Rating:
    Up to 1.5 kV DC between digital logic and field I/O
  • Input Supply Voltage Rating:
    110 V to 240 V AC
  • Logic Board Operating Voltage:
    24 V DC
  • Operating Temperature Envelope:
    0°C to +55°C (32°F to 131°F)
  • Storage Temperature Envelope:
    -40°C to +70°C
  • Relative Humidity Limits:
    5% to 95% non-condensing
  • System Directives:
    CE, RoHS
  • Weight:
    0.7 kg
  • Estimated shipping dimensions:
    2.5x40.6x7.6cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Sweden
  • 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 Applications Monitoring & Control Performance & Efficiency

Features:

  • Advanced Deterministic Control Processing
  • Industrial-Grade Conformal Coating and Galvanic Isolation
  • Retroactive Compatibility and Hardware Matching
The ABB YXT115B 4890024-NK relies on an architecture optimized for deterministic task cycles, ensuring ultra-low jitter processing of critical phase angle and loop calculations required by large-scale variable speed drives and excitation systems.

Featuring high-grade conformal coating and optocoupled isolation barriers, the ABB YXT115B 4890024-NK actively resists conductive dust buildup, humidity, and chemical contaminants common to metals, mining, and marine environments.

The ABB YXT115B 4890024-NK maintains exact form-factor, physical pinouts, and electrical parameter consistency corresponding to legacy control loops, guaranteeing plug-and-play restoration during critical emergency plant repairs.

The YXT115B 4890024-NK ABB Basic Control Unit PCB Board may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB YXT115B 4890024-NK Basic Control Unit PCB Board Manuals,Datasheets,Link 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.
ABB YXT115B 4890024-NK Basic Control Unit PCB Board

General

  • Manufacturer ABB
  • Model YXT115B 4890024-NK
  • Condition New Original ready stock
  • Product Family YXO124 4890024-LF,YXU149 YT296000-RX,YXO126 4890024-UN
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.
  • Vintage Power Generation Plants: Acts as a vital fail-safe voltage supervisor in older hydro and thermal power grid controls, preventing sudden auxiliary power drops from causing uncoordinated safety trips in generator units.
  • Heavy Metal & Steel Rolling Mills: Deployed within the high-vibration control rooms of legacy steel mills, where its heavy-duty trace design handles crucial interlocking logic signals for massive mechanical motor drives.
  • Continuous Chemical Processing Lines: Installed in safe-zone control cabinets to process discrete signals coming from field isolation barriers, ensuring consistent loop tracking for sensitive chemical thermal reactions.
  • Marine Distribution Control Architectures: Integrated into early shipboard automation systems to monitor shore-to-ship or generator-level power quality, where its component-level build natively resists continuous engine-room tremors.
  • Physical Component Status Interlocking: Uses heavy-duty contact logic to relay critical voltage deviations straight to the central DCS processor, serving as a reliable hardware gateway for alarm triggers.
  • Instantaneous Dual-LED Diagnostic Display: Delivers local visual monitoring directly on the board face via two red LEDs, shortening troubleshooting loops by allowing rapid separation of hardware faults from field field wiring issues.
  • Sealed Hardware Contact Switching: Manages incoming signal routing through high-integrity GI CLARE relays, providing robust galvanic separation that prevents field surges from blowing out the backplane.
  • Oxidation-Resistant Edge-Connection Loops: Features thick, gold-plated structural edge pins that preserve signal accuracy and eliminate contact resistance even after decades of continuous seated rack duty.
  • Zero-Latency Circuit Execution: Because it relies entirely on analog hardware components rather than modern digital CPU scanning cycles, the board responds to voltage spikes and failures with near-zero latency.
  • Low Thermal Dissipation Footprint: Engineered to run cool inside packed, unventilated legacy subracks, its low internal power consumption protects nearby processing modules from heat-induced component degradation.
  • Maintenance-Free Lifecycle Durability: Eliminates typical modern IT failure points like dead onboard backup batteries or corrupted EEPROMs, retaining its strict factory-set behavior for decades without field drift.
  • Rapid Maintenance Downtime Reduction: Functions as a 100% exact drop-in structural spare, allowing emergency maintenance staff to swap the module in minutes and keep legacy manufacturing plants operating efficiently.
Description
The ABB YXT115B 4890024-NK functions as a core processing hub, orchestrating localized closed-loop control algorithms and hardware-level timing. It guarantees synchronized gate-triggering and reference signaling across heavy power electronics topologies, minimizing torque ripple and harmonic distortions in demanding multi-drive configurations.

Built on a rugged multi-layer industrial substrate, the ABB YXT115B 4890024-NK incorporates advanced onboard isolation and differential filtering networks. This structural layout shields the logic components from intense electromagnetic interference (EMI) typical of high-power inverter switching stages and heavy industrial grids.

As an essential infrastructure component for legacy automation frameworks, the ABB YXT115B 4890024-NK offers seamless drop-in replacement capabilities. This allows industrial facilities to maintain asset continuity, circumvent premature system deprecation, and sustain production uptime without requiring expensive, full-scale hardware overhauls.

Designed with advanced hardware-level monitoring, the ABB YXT115B 4890024-NK continuously tracks internal voltage tolerances, relay/gate driver statuses, and communication bus integrity, enabling preventative fault containment before anomalies escalate into catastrophic system trips.
Alternative Names
YXT115B 4890024-NK YXTII5B 4890024-NK YXT115B 489OO24-NK YXTII5B 489OO24-NK YXO116 4890024-LC YXO124 4890024-LF YXU149 YT296000-RX
Technical notes
The ABB YXT115B 4890024-NK must be configured utilizing correct firmware revisions or onboard dip-switch settings matching the host controller backplane to prevent bus parity errors or boot-sequence failures during restoration.Anti-static handling (ESD protection) guidelines must be strictly enforced during installation of the ABB YXT115B 4890024-NK, and all field supply power lines must be fully isolated before seating or removing the module from the rack connector. (Note: This module does not support hot-swapping).
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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.
Which firmware revisions are natively supported by the ABB YXT115B 4890024-NK control board?
The ABB YXT115B 4890024-NK supports proprietary legacy firmware packages stored on its onboard socketed EPROM chips. When procuring a replacement module, it is crucial to verify that the suffix revision of your existing board (e.g., hardware revisions or chip labels) matches exactly to prevent backplane initialization errors and ensure correct timing synchronization.
What communication protocols and bus interfaces does the ABB YXT115B 4890024-NK utilize to talk to the master controller?
The ABB YXT115B 4890024-NK communicates via a high-speed parallel backplane bus architecture. This dedicated proprietary interface allows the unit to transfer real-time gate-firing references, analog loop feedback, and raw telemetry data to higher-level processing blocks with virtually zero transmission overhead.
How does the internal diagnostic system of the ABB YXT115B 4890024-NK assist engineers in pin-pointing drive faults?
The ABB YXT115B 4890024-NK features onboard diagnostic LED status indicators for instant local troubleshooting. Furthermore, it continuously flags anomalies—such as synchronization heartbeat failures or internal voltage dips—via status registers to the master controller, which then outputs specific diagnostic fault codes onto the drive's HMI or control panel.
Can the ABB YXT115B 4890024-NK be integrated into third-party control networks via a gateway or bridge module?
No, the ABB YXT115B 4890024-NK is a proprietary subsystem component and cannot interface directly with third-party networks (such as Profinet or EtherNet/IP). Any external integration must be handled at the primary host drive controller or upper-level DCS layer to which this board reports.
What are the critical environmental and temperature boundaries for operating the ABB YXT115B 4890024-NK safely?
The ABB YXT115B 4890024-NK is rated for a standard operating temperature range of 0°C to +55°C when mounted within appropriately enclosed, forced-air cooled industrial cabinets. Relative humidity must be maintained between 5% and 95% (non-condensing) to preserve the integrity of the onboard protective coating.
What is the step-by-step installation sequence required when replacing an older ABB YXT115B 4890024-NK module?
First, completely isolate all incoming power to the drive cabinet and verify that the high-voltage DC-link capacitors are fully discharged. Wearing a properly grounded ESD wrist strap, carefully slide out the faulty board. Before inserting the new ABB YXT115B 4890024-NK, verify that all onboard jumper configurations or dip-switch settings match the original board exactly. Securely seat the module into its backplane slot and hand-tighten any retaining hardware to specification.

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