Serial Measurement Board | 3HAC021905-001 | ABB

Technical Specifications

The ABB 3HAC021905-001 Serial Measurement Board is an electronic circuit board for use in ABB industrial automation and robotic systems. It is used to support serial signal processing and related measurement functions within the control system. The board is designed for reliable operation and seamless integration with compatible ABB equipment.The board supports a wide range of serial communication protocols, enabling flexible integration into different automation setups. Its advanced design ensures stable and accurate measurements, even in demanding environments, while offering high-speed data transmission for effective system monitoring. 

Troubleshooting & Comissioning Checklist

ESD Protection: Wear an ESD wrist strap; the SMB circuitry is highly electrostatic sensitive.
Voltage Verification: Measure the new battery package using a multimeter to ensure it reads a nominal 3.6V DC.
Cable Check: Ensure the connector pins on the 3HAC021905-001 harness are clear of oxidation or debris.

Field Engineering Considerations

Resolver Feedback Noise Protection: The SMB continuously processes sensitive analog position signals from robot axis resolvers. Ensure that motor power cables and feedback signal cables are routed through completely independent, shielded conduits to mitigate Electromagnetic Interference (EMI) or cross-talk.
Data Synch Management: The SMB records exact robot axis revolutions. When replacing a damaged 3HAC021905-001 unit, the "Revolution Counters" stored on the physical board will differ from the system image stored in the IRC5 main controller cabinet.
Updating Revolution Counters: Field engineers must manually update and calibrate the revolution counters via the ABB FlexPendant before operating the manipulator in automatic mode. Failing to synchronize this data can result in catastrophic mechanical crashes due to incorrect physical tracking coordinates.

Technical FAQ

Q: What is the primary function of the 3HAC021905-001 board?
A:The board functions as a critical communication bridge within the IRC5 controller framework. It processes raw positional resolver feedback directly from the robot joint motors, tracks revolution counter data, and interfaces with the Safety Motion Bus (SMB) protocol to ensure safe axis control.

Q: Which industrial robots and controllers use this module?
A: It is frequently found attached to or working alongside companion components like the DSQC633 hardware assembly.

Q: Can a damaged 3HAC021905-001 board be repaired？
A:Yes. Industrial automation repair facilities like Lektronix offer component-level repair and testing services specifically for the 3HAC021905 series variants. This commonly involves replacing degraded capacitors, logic gates, or damaged D-sub contact traces..

Q: Do you supply brand-new, original parts or second-hand refurbished items?

A: Our stock consists of Original New items; all products undergo quality inspection to ensure they are fully functional.

Q: What guarantees are included with the shipment?
A: All items in stock are tested by engineers, packed in professional ESD packaging, and shipped via express logistics with a global delivery time of 24–48 hours.

Q: How long does global shipping take?
A: Stock items are typically dispatched within 24 hours. Shipments are sent via DHL or FedEx Express, taking approximately 3–5 days to reach Asia, 4–6 days to Europe and the Middle East, and usually arriving within a week in major industrial regions worldwide.

Q: If the model I need is not listed on the website, can I request a quote?
A: Yes. We hold over 200,000 SKUs of industrial spare parts in stock, and many long-tail models are not listed in full. You can send us an RFQ (Request for Quote) directly, and we will provide wholesale pricing promptly.

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