3ME963.90-1 Servo Drive

The 3ME963.90-1 is a high-performance servo drive developed by B&R Industrial Automation, designed as a core motion control unit for industrial automation applications. Adopting advanced digital control technology and industrial-grade power electronic design, this drive is capable of precise speed, position and torque control for servo motors. It features a compact structural layout, integrated protective circuits and strong electromagnetic compatibility, ensuring stable and reliable operation in complex and harsh industrial environments. The standard rail mounting design allows for easy installation inside industrial control cabinets, which helps optimize cabinet space and simplify system wiring and layout. As a mature product in B&R’s drive product line, it can work independently for single-axis motion control or collaborate with other controllers and modules to build multi-axis linkage automation systems.

The official product model is 3ME963.90-1, a standard servo drive produced by B&R with strict adherence to the group’s global quality management system and international electrical safety standards. It has obtained CE certification and complies with relevant EU directives on safety and electromagnetic compatibility. The drive has an IP20 protection rating and is intended for indoor installation in standard industrial control cabinets. It supports standard industrial power supply specifications and is compatible with mainstream B&R servo motors and automation control systems. The product comes with complete factory testing and quality inspection, and is supplied as a new original part for new equipment assembly and replacement of old units in existing production lines. All configuration, parameter setting, programming, debugging and maintenance operations are carried out through the unified B&R Automation Studio software platform, which provides a consistent and efficient operation environment for users.

As a key component of the servo motion control system, the 3ME963.90-1 undertakes the core task of driving and controlling servo motors. It supports three mainstream control modes including position control, speed control and torque control, and allows seamless switching between different modes according to actual production requirements. In position control mode, it delivers high-precision positioning to meet the demands of precise machining, positioning and indexing. In speed control mode, it maintains stable motor speed even under variable load conditions. In torque control mode, it achieves accurate output of motor torque for applications requiring constant tension or constant force. The drive integrates regenerative braking and dynamic braking functions, which can effectively consume the regenerative energy generated during motor deceleration and stopping, shorten the braking time and improve the safety of motion processes. It is also equipped with complete voltage monitoring and under-voltage warning functions to monitor the power supply status in real time and avoid equipment faults caused by abnormal voltage. With rich built-in digital input and output interfaces, it can connect with external sensors, limit switches, relays and other peripheral devices to realize interlock control and signal interaction. Meanwhile, it supports multiple industrial communication protocols, enabling seamless data exchange with upper-level controllers, human-machine interfaces and other field devices, and adapting to both stand-alone and networked control architectures.

The 3ME963.90-1 adopts a high-speed digital signal processor as the control core, which can execute complex control algorithms and ensure fast dynamic response of the system. It supports a wide range of input voltages that adapt to mainstream industrial power grids, and the output frequency can cover the operating frequency range of conventional servo motors. In terms of control accuracy, the speed control precision reaches ±0.1%, and the position control accuracy meets the requirements of high-precision industrial positioning scenarios. The drive has excellent overload capacity, which can withstand short-term overload current to cope with instantaneous load impact during equipment operation. It is compatible with incremental and absolute encoder feedback signals, and the high-resolution feedback system further improves the overall control precision and operation stability of the servo system.

Regarding environmental adaptability, the rated operating temperature ranges from 0°C to 60°C, and the storage temperature ranges from -25°C to 70°C. It can work normally under relative humidity of 5% to 95% non-condensing, and resists common industrial dust, moisture and electromagnetic interference. Multiple LED status indicators are arranged on the front panel of the drive to display real-time operating status such as power-on, operation, fault and communication, facilitating on-site personnel to conduct status observation, fault diagnosis and daily maintenance. Built-in multiple safety protection mechanisms include over-current protection, over-voltage protection, under-voltage protection, over-temperature protection and motor stall protection. Once an abnormal condition occurs, the drive will trigger protection actions immediately and record fault information to protect the drive, motor and the entire mechanical equipment from damage.

For on-site installation and commissioning, dedicated power cables, motor connecting cables and encoder cables need to be equipped separately to ensure stable power supply and signal transmission. The drive is fully compatible with standard installation rails, brackets and wiring accessories used in B&R automation systems. To realize communication functions, corresponding communication cables and protocol matching accessories are required according to the selected communication mode. B&R Automation Studio serves as the exclusive supporting software for parameter configuration, program editing, online debugging, data monitoring and fault analysis of this servo drive. It can be matched with various B&R servo motors of corresponding specifications, as well as industrial peripheral devices such as PLCs, human-machine interfaces, sensors and actuators, to form a complete servo motion control system.

The 3ME963.90-1 servo drive is widely applicable to various industrial automation scenarios that require precise motion control. It is commonly used in general mechanical manufacturing, packaging machinery, textile machinery, printing equipment, food processing machinery, automated assembly lines and electronic manufacturing equipment. It also performs well in light industrial robots, gantry equipment, material handling devices and small and medium-sized numerical control processing equipment. Whether it is single-axis independent motion control or multi-axis synchronous linkage control, this drive can deliver stable and efficient performance. Its highly integrated and compact design effectively reduces the overall volume of the control system, lowers the difficulty of equipment integration, and helps users reduce system construction and subsequent operation and maintenance costs. It is suitable for both new automation projects and renovation and upgrading of old production lines.

The 3ME963.90-1 is an original genuine product of B&R. All production processes are carried out in accordance with strict international industrial quality standards, and each unit undergoes comprehensive testing and inspection before leaving the factory. The product has passed CE certification and meets international standards for electrical safety and electromagnetic compatibility. With excellent electromagnetic interference resistance and environmental adaptability, it can maintain long-term continuous and stable operation in various harsh industrial working conditions. B&R provides a complete quality assurance system and a global after-sales service network, offering users reliable technical support and after-sales guarantee. The drive features a long service life and low failure rate, which can fully satisfy the long-term uninterrupted operation requirements of industrial production sites.