ABB 3HAC026271-001/DSQC646 Robot Drive

ABB 3HAC026271-001/DSQC646 Robot Drive

Product positioning and core values

In the ABB robot control system, the DSQC646 drive unit is a key bridge connecting the controller (such as the IRC5 series) and the actuator (robot joint motor), and its core value is reflected in the closed-loop process of "instruction decoding power conversion precision control":

1. Accurate execution of control instructions: Receive motion control instructions (such as position, speed, torque instructions) from the robot controller, decode and convert them through internal high-precision control algorithms, drive the motor to move according to the preset trajectory, and ensure that the robot end effector achieves millimeter level or even higher precision positioning.

2. Efficient driving of motor operation: Advanced power conversion technology is adopted to convert the input three-phase AC power into adjustable frequency and voltage power supply required by the motor, providing stable and efficient power support for the robot joint motor, while optimizing energy utilization efficiency and reducing operational energy consumption.

3. Core guarantee of system security: Integrating multiple safety protection mechanisms, real-time monitoring of motor operation status (such as current, temperature, speed) and its own working status. When there are abnormal situations such as overload, overcurrent, overheating, short circuit, etc., the protection action can be quickly triggered to cut off power output or issue an alarm, avoiding equipment damage and production accidents.

Core functional features

The DSQC646 drive unit is based on ABB's deep technical accumulation in the field of robot drive, and has the following outstanding functional characteristics to meet the demanding requirements of industrial scenarios:

-High precision motion control: Supports pulse width modulation (PWM) control technology and vector control algorithms, which can accurately adjust the motor speed and torque, achieve smooth motion and fast start stop of robot joints, and achieve motion control accuracy of ± 0.02mm. It is suitable for high-precision work scenarios such as precision assembly and laser welding.

-Fast response performance: Internally equipped with high-speed processors and optimized control logic, the instruction response time is as short as microseconds, which can quickly respond to dynamic adjustment instructions issued by the controller, effectively reducing the tracking error of the robot in complex trajectory movements and improving work efficiency.

-Strong compatibility adaptation: Designed specifically for ABB's specific series of robots (such as IRB 6600, IRB 7600, and other medium to large robots), it perfectly adapts to the corresponding servo motor and controller systems, supports plug and play installation, and simplifies the system integration process; Simultaneously compatible with multiple control modes of ABB robot control system (such as position control, speed control, torque control).

-Comprehensive state monitoring and diagnosis: equipped with comprehensive self diagnostic functions, real-time communication with the controller through industrial buses such as CANopen or EtherCAT, uploading motor operating parameters (current, voltage, temperature), driving unit working status (such as module temperature, power status) and fault codes, facilitating remote monitoring and quick troubleshooting by operation and maintenance personnel.

-Industrial grade reliability design: using high-grade electronic components and sealed protective structures, the working temperature range covers 0 ℃~45 ℃, the humidity adaptation range is 5%~95% (no condensation), it can resist electromagnetic interference and vibration impact in industrial sites, with a long mean time between failures (MTBF), ensuring production continuity.

3、 Key technical parameters

Model identification

3HAC026271-001/DSQC646

ABB official unique model code, used for product identification and procurement

input power

Three phase AC 380V~480V, 50/60Hz

Support wide voltage input and adapt to industrial power grids in different regions

output power

The maximum output power can reach 15kW (depending on the motor matching situation)

Provide sufficient power for joint motors of medium and large robots

output current

Continuous output current ≤ 30A, peak output current ≤ 90A

Meet the current requirements during motor start-up and sudden load changes

control accuracy

Position control accuracy ± 0.02mm, speed control accuracy ± 0.1%

Ensure high-precision operation of robots

communication interface

Supports CANopen and EtherCAT industrial buses

Realize high-speed data interaction with the controller

Protection level

IP20 (Installation of Indoor Control Cabinet)

Prevent solid foreign objects from entering, suitable for controlling the environment inside the cabinet

Suitable motor type

ABB servo permanent magnet synchronous motor

Perfectly matched with ABB robot specific motors for optimal performance

Applicable industries and typical application scenarios

The DSQC646 driver unit, with its high precision, high reliability, and strong adaptability, is widely used in various automation production fields that require robot participation. The core applicable scenarios are as follows:

1. Automotive manufacturing industry: Suitable for ABB IRB 6600 and other robots, used for automotive body welding, chassis assembly, painting and spraying processes. In welding operations, its precise speed control ensures that the welding gun moves at a constant speed, ensuring even welding seams; In assembly operations, stable torque output can prevent components from being assembled too tightly or too loosely.

2. Electronic and electrical industry: used for precision assembly of electronic products such as mobile phones and computers, such as chip soldering and component mounting. Its millimeter level position control accuracy can meet the small installation gap requirements of electronic components, and its fast response performance can improve the operation cycle of the assembly line.

3. Logistics and warehousing industry: compatible with ABB palletizing robots for automatic palletizing, unpacking, and handling of goods. The driving unit can provide stable power output for the robot, ensuring smooth operation when handling heavy goods (such as 50kg or more) and improving the automation efficiency of warehousing and logistics.

4. Metal processing industry: used for robot laser cutting, polishing and other operations. In laser cutting, its precise trajectory control can ensure the accuracy of the cutting path; In polishing and grinding, the adjustable torque output can adapt to the surface treatment requirements of different workpieces and improve the processing quality.

5. Food and beverage industry: Suitable for food grade robots, used for sorting, packaging, and boxing of food. The stable operation of the driving unit can prevent food from being damaged by collisions during transportation, and its reliable protective design can adapt to the clean environment requirements of the food workshop.

Precautions for use

To ensure the long-term stable operation of the DSQC646 drive unit and the entire robot system, the following specifications must be strictly followed during installation, debugging, and maintenance:

-Installation environment requirements: The drive unit should be installed in a well ventilated, dry, dust-free, and corrosive gas free control cabinet, avoiding direct sunlight and rainwater erosion; The temperature inside the control cabinet should be controlled between 0 ℃ and 45 ℃, and the relative humidity should not exceed 95% (without condensation); The installation distance between the drive unit and other heating devices (such as frequency converters) should not be less than 10cm to ensure good heat dissipation.

-Electrical connection specifications: Power wiring must be operated by professional electricians, strictly distinguishing between three-phase live wire, neutral wire, and ground wire to avoid reverse connection or short circuit; The input power supply should be equipped with suitable circuit breakers and fuses (specifications refer to the product manual) to achieve overcurrent protection; The connection cables between the drive unit, motor, and controller need to use ABB recommended specialized cables to ensure good contact and reduce signal interference.

-Debugging operation specifications: Before debugging, it is necessary to confirm that the drive unit model matches the robot model and motor model; Configure parameters through ABB robot teaching pendant or debugging software, including motor model, control mode, motion parameters, etc. After parameter settings are completed, perform no-load testing to check whether the motor runs smoothly and has no abnormal noise; During load testing, it is necessary to gradually increase the load and observe the temperature and current changes of the driving unit to ensure that it operates within the rated range.

-Daily maintenance points: Regularly clean the dust on the surface of the drive unit and the cooling fan to avoid dust accumulation and poor heat dissipation; Check the fastening of the wiring terminals once a week to prevent loosening and poor contact; Check the running logs of the driver unit every month through debugging software to analyze whether there are potential faults; Regularly check the condition of vulnerable components such as cooling fans and capacitors, and replace them in a timely manner when approaching their service life.

-Fault handling specifications: When a fault alarm occurs in the drive unit, the robot should be stopped immediately. The fault code should be checked through the controller or the fault indicator light of the drive unit, and the cause of the fault should be investigated by referring to the product manual; It is strictly prohibited to forcefully start the equipment without troubleshooting; When replacing the driver unit, it is necessary to ensure that the model and firmware version of the new unit are consistent with the original unit. After replacement, parameter configuration and debugging need to be carried out again.