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Match the complete marking
Retain SNAT7261QCP in full and compare the actual converter and assembly identities.
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Check the offered item before ordering
Review label and connector photos, matching-card scope and the installed-drive configuration.
Technical specifications for SNAT7261QCP
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Manufacturer:ABB
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Product Category:General Automation
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Spare Part Number:SNAT7261QCP
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Weight:0.88 kg
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Tariff Code:8537101190
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Base-design designation:SNAT 7261 INT
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Base-design platform:SAMI GS ACS 502-506
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Base-design component position:A3 main circuit interface
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Base-design supply function:Power-supply circuits
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Base-design switching interface:Transistor gate-trigger circuits
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Base-design voltage measurement:DC-link voltage measurement circuits
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Base-design current measurement:Motor-current measurement circuits
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Matching-card relationship:Separate A7 card; power-range programming
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Control-interface relationship:Separate from SNAT 7600/7640 control interface
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Revision identity:Retain the complete QCP marking
Information
Overview
Downloads
Applications / Compatibility
Product Precautions
- ABB SNAT7261QCP belongs to the SNAT 7261 main-circuit interface design used inside legacy SAMI GS converters. Its board revision and matching-card arrangement are part of the installed-drive identity.
Product type: Main-circuit interface card
Base-design position: A3 in the converter module
Revision identity: Complete SNAT7261QCP marking
Base-design position: A3 in the converter module
Revision identity: Complete SNAT7261QCP marking
ABB SNAT7261QCP carries the complete revision marking of a SNAT 7261 main-circuit interface card. In the SAMI GS base design, this interface occupies position A3 and contains power-supply circuits, transistor gate-trigger circuits, DC-voltage measurement and motor-current measurement. These functions connect the converter power stage with its control electronics; they are distinct from the A4 motor-control card.
The separate A7 matching card sits on the SNAT 7261 interface and stores the power-range programming information for the particular converter hardware. The SAMI GS matching-card designation identifies the applicable power and voltage class. Consequently, the main-circuit interface and matching-card configuration must remain associated with the installed converter rather than being selected from board appearance alone.
SAMI GS card identification separates the part-list revision, printed-circuit revision and schematic revision within the three-letter suffix. Retain the full SNAT7261QCP marking together with its serial and assembly information when identifying the supplied board. The base-design functions above do not assign a converter power rating, operating-voltage rating or approval to the QCP revision, and the 600 V base configuration uses a different main-circuit interface design.
The separate A7 matching card sits on the SNAT 7261 interface and stores the power-range programming information for the particular converter hardware. The SAMI GS matching-card designation identifies the applicable power and voltage class. Consequently, the main-circuit interface and matching-card configuration must remain associated with the installed converter rather than being selected from board appearance alone.
SAMI GS card identification separates the part-list revision, printed-circuit revision and schematic revision within the three-letter suffix. Retain the full SNAT7261QCP marking together with its serial and assembly information when identifying the supplied board. The base-design functions above do not assign a converter power rating, operating-voltage rating or approval to the QCP revision, and the 600 V base configuration uses a different main-circuit interface design.
Controller platform reference: SAMI GS / SNAT 7261 interface design. Retain the exact board and matching-card identities.
Technical downloads for ABB SNAT7261QCP: original manufacturer reference pages and an Apter Power installation and commissioning guide.
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Official SAMI GS Interface-Design Reference Excerpt
Original manufacturer excerpt - PDF, 4 pages. SNAT 7261 base-design role, converter arrangement and identification. -
ABB SNAT7261QCP installation guide
Prepared by Apter Power - PDF, 5 pages. Identity, interfaces, installation hold points, commissioning and service checks.
The technical reference preserves selected manufacturer pages. The installation guide is compiled by Apter Power for preparation and review; apply the original operating procedures and site controls during work.
System and supply context: SNAT7261QCP is the complete offered marking. The technical functions below describe the documented SNAT 7261 base design; matching cards and other converter parts are separate unless itemized.
Platform applications: These are legacy SAMI GS converter functions. Confirm the actual drive configuration and revision arrangement before selecting a replacement card.
Platform applications: These are legacy SAMI GS converter functions. Confirm the actual drive configuration and revision arrangement before selecting a replacement card.
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Converter interface restoration
Restore the documented A3 main-circuit interface function in the appropriate installed SAMI GS converter. Compare the full board marking and drive records before replacement. -
Gate-trigger circuit service
The SNAT 7261 base design includes transistor gate-trigger circuits. Investigate the complete inverter path under the applicable isolated service procedure. -
DC-link measurement diagnosis
Use the converter diagnostic procedure when checking the base-design DC-voltage measurement path. Do not treat the board as an independent user-calibrated voltage transmitter. -
Motor-current feedback service
The base design includes motor-current measurement circuits and works with the converter current transducers. Check the whole feedback path when investigating a measurement fault.
Prepare ABB SNAT7261QCP using the installed-system design, controlled isolation and the applicable manufacturer procedure.
Match the full revision
Compare SNAT7261QCP with the actual installed label and assembly records. Do not reduce the selection to SNAT 7261 or infer equivalence from appearance.
Retain the matching card
Identify the separate A7 power-range programming card and preserve its relationship to the installed converter hardware.
Isolate stored energy
Use the ABB converter safety procedure and verify the DC-link condition before touching boards. Account for external control supplies and unintended motor motion.
Keep interface roles distinct
Do not interchange the A3 main-circuit interface with the separate control-interface, motor-control or input-protection card.
Use the actual voltage variant
Confirm the converter type and nameplate. The SAMI GS manual identifies a different main-interface type for 600 V units; do not assign that rating to QCP by inference.
Test the complete converter
Recheck connections, gate-trigger and measurement behavior through the installed-drive commissioning procedure before releasing the machine.
Alternative Names
SNAT 7261 QCP
Technical notes
Base-design relationship: SNAT 7261 INT provides the converter main-circuit interface functions. Keep the complete SNAT7261QCP identity and the separate A7 matching-card arrangement with the drive record.
Service boundary: Electrical ratings and interchangeability follow the actual converter and approved assembly. Isolate and verify stored energy before board handling.
Technical reference: ABB SAMI GS Frequency Converters ACS 502-506 User's Manual, EN 58424714 Rev. B; ACS 502 Installation and Start-up Manual.
FAQ View All FAQ
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What role does the SNAT 7261 base design give SNAT7261QCP?The documented SNAT 7261 INT is the A3 main-circuit interface card in a SAMI GS converter. The complete QCP marking remains part of the offered board identity and must be compared with the installed assembly.
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Which circuits are described for the base design of SNAT7261QCP?ABB describes power-supply, transistor gate-trigger, DC-voltage measurement and motor-current measurement circuits on SNAT 7261 INT. These are base-design functions, rather than independently established QCP electrical ratings.
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Is SNAT7261QCP the same function as the SNAT 7600/7640 control interface?No. The main-circuit interface is a converter-module function. The SNAT 7600/7640 control interface is a separate card associated with the display, keypad and control connections.
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Why should the A7 matching card be checked when replacing SNAT7261QCP?The separate A7 matching card carries power-range programming information for the converter hardware. Retain the installed matching-card arrangement and confirm its identity during main-board service.
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Can a 600 V rating be assumed from the appearance of SNAT7261QCP?No. The SAMI GS manual distinguishes SNAT 7261 INT from SNAT 7266 INT used for 600 V units. Confirm the actual drive voltage and approved board arrangement; appearance and the QCP suffix do not establish a voltage rating.
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Does SNAT7261QCP alone perform motor-current sensing?The SNAT 7261 design includes motor-current measurement circuits, while the converter also uses separate current transducers. Fault diagnosis must include the transducers, wiring and receiving circuits.
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How should the marking on SNAT7261QCP be retained for service?Record the complete board type, revision marking, serial or assembly information and matching-card identity with the converter record. Keep the QCP suffix intact when comparing a replacement.
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What must be verified before touching SNAT7261QCP inside a converter?Follow the applicable ABB isolation procedure, verify the DC-link energy condition and account for external control supplies. Board removal is a converter service operation and should be performed by qualified personnel under the site procedure.
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