The ABB 3HAC15619-1 is an ABB Robotics spare part identified in ABB documentation as “Cable, FB7-SMB 1.7.” It is used in the robot’s electrical/measurement architecture where an FB7 interface and the SMB (Serial Measurement) system are involved—particularly in configurations that include an additional axis or track motion (often referenced as axis 7) and related option structures.
In real maintenance terms, this is the kind of part that rarely gets attention until the day signal quality degrades, connectors loosen, routing gets pinched, or a cable jacket suffers fatigue in a high-motion area. Robots are unforgiving about feedback integrity: the control system expects clean, consistent measurement signals. A cable that is “almost fine” can produce intermittent faults that are painful to troubleshoot because they masquerade as encoder issues, axis tuning problems, or even servo amplifier anomalies. Using the correct ABB-designated cable assembly is a direct way to keep the measurement chain stable and reduce downtime risk.
What “FB7–SMB” means in practice
ABB’s robotics documentation frequently references a Serial Measurement Box / SMB concept for measurement connectivity, and also references FB7 in the context of signals for an additional axis/track motion. For example, ABB product specification materials describe that serial measurement (SMB) in the manipulator can be used together with option 864-1 (FB7) for signals to axis 7 / track motion. That same option number (864-1) appears directly alongside this cable part number in ABB spare parts documentation, indicating a strong linkage between the cable and that configuration.
Separately, ABB documentation on external axis installation concepts (older but useful for system understanding) explains how measurement cabling relates to serial measurement boxes and cabinet connections, reinforcing the general role of SMB-linked cabling in external axis setups.
Documented placements and examples in ABB spare parts manuals
Rather than guessing, it’s better to anchor this part number in ABB’s own lists:
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In ABB’s Product manual, spare parts – IRB 1510, 3HAC15619-1 is listed under options as “Cable FB7-SMB 1.7”, with the note “Option 864-1 On base.”
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In ABB’s Product manual, spare parts – IRB 7600, 3HAC15619-1 is listed as “Cable, FB7-SMB 1.7” in the section around manipulator harness / SMB and BU unit context.
Those references matter because they show the part number is not just a reseller label—it’s a defined ABB spare part name used across ABB robot documentation.
Why this cable is important (and why “just any cable” is a trap)
A robot feedback/measurement cable is not only about “continuity.” It is also about:
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Signal integrity over time: repeated motion and vibration can introduce micro-damage that becomes intermittent.
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Connector fit and retention: correct keying, locking, and strain relief reduce loosening and fretting corrosion.
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Routing and mechanical survivability: the right jacket, flexibility class, and assembly design help avoid early-life failures in moving harness paths.
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Repeatable maintenance outcomes: when you replace with the specified assembly, you eliminate a whole category of variability in troubleshooting.
ABB labels this cable with the suffix “1.7” in its official naming. In many markets it is also marketed as a 1.7 m cable by third-party sellers, but the safest statement is: ABB’s designation includes “1.7,” and you should match the exact part number to get the correct length/build.
Key Product Data (Quick Reference Table)
| Field | Description |
|---|---|
| Manufacturer | ABB Robotics |
| Part Number | 3HAC15619-1 |
| ABB Description (as listed) | Cable FB7-SMB 1.7 / Cable, FB7-SMB 1.7 |
| Configuration Link (documented) | Associated with Option 864-1 (FB7) On base in IRB 1510 spare parts |
| Example Robot Documentation | Appears in ABB spare parts manuals for IRB 1510 and IRB 7600 |
| System Context | ABB documentation ties SMB + FB7 to signals for axis 7 / track motion in certain robot configurations |
| Product Type (category) | Robot cable / cable assembly (FB7–SMB link) |
Typical Use Scenarios
This cable is most relevant when you are dealing with one of the following situations:
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A robot configuration that includes track motion / external axis signaling where FB7 is referenced, and SMB is part of the measurement architecture.
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Scheduled service or repair where ABB documentation lists FB7–SMB cable replacement as part of restoring correct harness condition.
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Troubleshooting intermittent feedback-related faults where inspection reveals jacket damage, crushed routing points, loose locking, or connector wear on the existing assembly.
Installation and handling guidance (practical, not preachy)
You typically get better results if you treat this as a precision measurement cable assembly rather than “just wiring.”
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Respect routing and bend radius: harsh bends near connectors are a classic failure origin in moving harness routes.
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Locking and seating: ensure connectors are fully seated and locked; partial engagement causes heat, noise, and intermittency.
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Strain relief matters: the cable should not carry mechanical load at the connector interface.
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Pair it with visual inspection: if the old cable failed due to pinch points, abrasion, or a broken clamp, replacing only the cable without fixing routing usually leads to repeat failures.
Compatibility and verification
Because ABB robot configurations vary by model, variant, and installed options, you should verify fitment by referencing the robot’s spare parts documentation for your exact build. The part is explicitly documented in ABB spare parts materials for IRB 1510 (options section) and IRB 7600 (spare parts listings), which provides strong confirmation that it is a legitimate ABB item used in real robot assemblies.
Ordering notes for procurement
When purchasing 3HAC15619-1, use the ABB naming in your PO line to reduce mis-shipments:
“ABB Robotics 3HAC15619-1 Cable FB7-SMB 1.7 (verify robot model/option compatibility per ABB spare parts manual; often linked to option 864-1 FB7 on base).”
If you are sourcing from non-ABB channels, require traceability. Robot cable assemblies are common in secondary markets, and the cost of a wrong or low-quality assembly is rarely the purchase price—it is the debugging time and downtime.
SEO-friendly closing (clean, indexable)
The ABB 3HAC15619-1 is a dedicated FB7–SMB cable assembly identified in ABB documentation as Cable FB7-SMB 1.7, referenced in ABB spare parts manuals (for example IRB 1510 and IRB 7600) and linked to option structures involving FB7 on the base and SMB measurement systems. It is a sensible choice when you need to restore correct measurement/signal connectivity in ABB robot installations where consistent feedback and stable harness routing are non-negotiable.
