Pacific Scientific SC753A-001-01 Servo Motor Driver

Multi-Mode Precision Control: Supports position mode (pulse + direction/encoder feedback), speed mode, and torque mode, with positioning accuracy up to ±1 pulse, adapting to different process scenarios (e.g., precision dispensing, material sorting).

High-Speed Dynamic Response: Current loop update frequency ≥40kHz, speed loop bandwidth ≥800Hz, enabling fast tracking of high-speed start-stop and complex trajectory movements to reduce dynamic errors.

Multi-Protocol Compatibility: Standard with Modbus RTU and CANopen communication interfaces, optional EtherNet/IP, RS485, etc., facilitating integration with upper-level systems like PLC and HMI.

Multiple Safety Protections: Equipped with overcurrent, overvoltage, overload, overheat, encoder abnormality protection, and emergency stop functions to prevent equipment damage and production accidents.

Intelligent Debugging and Monitoring: Parameters can be configured via an LCD panel or dedicated software (e.g., Pacific Motion Designer), supporting real-time status monitoring, fault code display (e.g., "AL003" indicates overload), and historical data recording.

Low Interference and Environmental Adaptation: Adopts vector control algorithm and EMI filtering design to reduce electromagnetic interference; operating temperature range -10°C~+50°C, humidity ≤90% (non-condensing), protection class IP20, adapting to dusty and vibrating industrial site environments.

Receives position, speed, or torque commands sent by upper-level systems (such as PLC), supporting input of pulse trains (e.g., AB phase pulses) or analog quantities (e.g., 0-10V corresponding to 0-100% speed).

Converts instructions into reference quantities required by control algorithms through a digital signal processor (DSP), and parses communication protocols (such as CANopen) to obtain parameter configurations.

Vector Algorithm Decomposition: Decomposes three-phase current into "excitation current" and "torque current" through Clark transformation and Park transformation, with independent control to achieve high-precision torque output.

PWM Modulation: Performs PID adjustment on excitation and torque currents to generate PWM drive signals, which are restored to three-phase PWM waveforms through inverse Park transformation and inverse Clark transformation to drive IGBT power modules.

Power Amplification: The IGBT module converts DC bus voltage (DC 140-340V) into three-phase AC voltage to drive the servo motor to rotate, with output power dynamically adjusted according to the load.

Real-Time Feedback: The encoder detects the rotor position and speed of the motor, feeds back to the DSP for comparison with the command value, and generates an error signal.

Three Closed-Loop Control: The DSP dynamically corrects the output through PID adjustment of the position loop, speed loop, and current loop. For example:

Built-in sensors real-time monitor parameters such as current, voltage, and temperature. When abnormalities are detected, PWM output is immediately blocked and the protection circuit is triggered, while fault codes are output through the communication interface or LED indicator lights.