DSQC346G 3HAB8101-8 ABB S4C+ Robot Servo Drive Unit Original In Stock
DSQC346G alias 3HAB8101-8 ABB old generation S4/S4C+ robot single-axis servo power amplifier, original industrial spare in stock, full pre-functional test with 12-month global warranty for vintage ABB robot workstation maintenance replacement
Product Overview
- PN: DSQC346G|Alternate No: 3HAB8101-8/10A|Brand: ABB|Series: S4 / S4C / S4C+ Vintage Robot Controller|Type: Single Axis Servo Drive Amplifier
Definition: Dedicated single-axis servo power drive module for ABB classic S4 series robot control cabinets, the core power execution unit for robot joint motion control. It receives motion trajectory instructions from robot main board DSQC202, outputs high-power three-phase AC power to robot servo motor, collects encoder real-time feedback signal to complete position/speed/torque three closed-loop precision control, discontinued original spare for aging S4 robot axis failure overhaul and drive breakdown emergency replacement
Core Features
- Three closed-loop vector servo control algorithm, high-speed PWM modulation, fast dynamic response, stable low-speed positioning for welding, handling heavy-duty robot joints
- Integrated complete hardware protection circuit: overvoltage, overcurrent, overload, overheat, motor short-circuit, encoder disconnection, emergency stop interlock protection to avoid motor and drive burnout
- Built-in robot internal rack bus communication interface, plug-and-play inserted into S4C+ cabinet backplane, automatic axis identification without complex parameter modification
- Multi-color LED status indicators on front panel, clearly display power ready, running status, bus communication, overheat, fault alarm for rapid on-site troubleshooting
- Integrated aluminum alloy heat dissipation shell, strong shock and vibration resistance, stable long-term operation in automobile welding, metal cutting high electromagnetic interference workshop environment
Modular rack plug-in design, independent single-axis drive layout, single damaged drive can be replaced separately without replacing the whole power unit, low maintenance cost
Technical Specs
- Main circuit power input: 3-phase AC 380–480V 50/60Hz
- Control circuit power supply: 24VDC supplied by robot cabinet internal power supply
- Drive capacity: Single axis matching ABB S4 series robot joint servo motor
- Communication bus: S4C+ proprietary internal rack motion bus
- Operating temperature: -10℃ ~ +55℃|Storage temperature: -40℃ ~ +85℃, RH5%–95% non-condensing
- Net weight: 3.14kg|Dimension: 370 × 175 × 120mm
- Protection grade: IP20 (cabinet internal installation only)
- HS Code: 85389091
- Certification: CE, UL certified
Product status: Discontinued legacy robot spare, no direct new replacement model
Compatibility
- Matched Controllers: ABB S4, S4C, S4C+ robot control cabinets
- Matched Robot Models: IRB2400, IRB4400, IRB6400, IRB6700 and all S4 platform heavy-duty industrial robots
- Matched internal modules: DSQC202 main computer board, DSQC series I/O signal modules of S4 generation
Incompatible: IRC5 / OmniCore new generation robot controllers, Advant DCS S400/S600/S800 I/O, 800xA DCS, AC500 PLC, ACS series inverters
Application
- Spare replacement for aging automobile welding, heavy load handling, machine tending ABB S4 series robot production line
- Robot joint jitter, axis overload alarm, drive overheat fault emergency maintenance
Old robot cell renovation, extend service life of S4 platform robotic workstation
Our Advantage
- Full motor load operation, bus communication and long-time aging testing before shipment
- 12-month global warranty for all original used spare parts
- DHL/Fedex worldwide door-to-door delivery, shipment port Xiamen
- Free technical support for S4 cabinet rack matching, motor encoder wiring, drive fault code troubleshooting










