ABB DSQC 633A 3HAC031851-001 SMB Unit

Product Overview

The ABB DSQC 633A (3HAC031851-001) is a vital Serial Measurement Board (SMB) that functions as the communication bridge between the robot's mechanical arm and the IRC5 controller. Its primary role is to interpret the complex analog signals from the motor resolvers and convert them into a digital serial data stream. This board is the "custodian" of the robot's coordinates; it continuously tracks the joint angles and maintains the revolution counters, ensuring the robot "knows" its exact position even after a power cycle.

Technical Specifications

• Part Number: 3HAC031851-001

• Model Designation: DSQC 633A

• Country of Origin: Lithuania

• Net Weight: 0.5 kg

• Customs Tariff Number: 85176200

• System Compatibility: IRC5 Controllers (M2004 and newer)

• Part Type: New / Spare Part

Key Features

• Precision Resolver Processing: Converts analog sine/cosine resolver waves into high-resolution digital positional data.

• Serial Data Integrity: Uses robust serial protocols to minimize the number of cables required between the robot and controller while maintaining high-speed updates.

• Position Retention: Designed to work with a backup battery to store "Revolution Counters," eliminating the need for frequent robot calibration (homing).

• Multi-Channel Support: Capable of managing multiple motor feedback channels simultaneously, typically covering all 6 robot axes.

• Enhanced Reliability: Manufactured in Lithuania to strict EU industrial standards, ensuring stable operation in high-vibration and high-temperature environments.