PC60 Dual-Phase Closed-Loop Pulse Stepper Drive

The PC60 is a pulse-type closed-loop stepper drive designed for dual-phase hybrid closed-loop stepper motors. It focuses on high positioning accuracy, step loss prevention, stable low-speed operation and low heat generation, balancing the cost of stepper drives and the performance of servo drives. Suitable for 57/60 series motors, it is widely applied in automatic equipment.

I. Core Positioning & Architecture

- Control Mode: Pulse + Direction / Dual-Pulse control, compatible with 57/60mm dual-phase closed-loop stepper motors.

- Control Architecture: Three-loop control (position loop / speed loop / current loop) equipped with a real-time encoder feedback to completely eliminate step loss.

- Core Technology: 32-bit DSP + FOC Vector Control + SVPWM, minimizing vibration and heat emission.

II. Key Typical Parameters

- Power Supply: DC20-80V, 36V recommended.

- Current: Continuous 1.4-5.6A per phase, peak current up to over 6A.

- Pulse Response: Maximum 200-300KHz, suitable for high-speed positioning.

- Micro-Stepping: Up to 256 micro-steps (51,200 pulses per revolution), with positioning accuracy up to ±0.007°.

- Encoder: Compatible with 1000/2500 PPR (Pulses Per Revolution), supporting differential / single-ended signal input.

- Protection Functions: Overvoltage, undervoltage, overcurrent, position deviation, phase loss and overheating protection, improving system reliability.

III. Core Advantages

1. High Precision & Step Loss Prevention: Real-time encoder feedback enables immediate correction of position deviation.

2. High Efficiency & Low Heat Rise: Variable current + variable frequency technology automatically reduces the static current by half, significantly lowering heat generation.

3. Stable Operation & Low Vibration: Resonance suppression + precise current control ensures smoother low-speed operation.

4. User-Friendly Interface: Optocoupler-isolated input/output with strong anti-interference ability; supporting multiple control modes such as Pulse + Direction and Dual-Pulse.

5. Easy Operation: DIP switches / software for quick setting of micro-stepping, current and pulse mode; fault alarm output (ALM).

IV. Application Scenarios

- 3C electronic equipment, laser processing, dispensing/screwdriving machines, small CNC machine tools, automatic assembly lines, testing instruments and other equipment sensitive to positioning accuracy and cost.

V. Selection & Operation Guidelines

- Matching Motor: 57/60 series dual-phase closed-loop stepper motors with 1000/2500 PPR encoders.

- Power Supply & Heat Dissipation: Select 36V/48V power supply; forced air cooling / heat sinks are recommended for high-current operation.

- Signal Interface: Pulse / Direction / Enable signals require optocoupler isolation; differential input is recommended to enhance anti-interference ability.

- Parameter Tuning: Fine-tune PID parameters according to load characteristics to balance response speed and operation stability.

VI. Comparison with Similar Products

- Compared with Open-Loop Drives: Closed-loop drives feature no step loss, higher precision and less high-speed torque decay, making them more suitable for precision positioning.

- Compared with Servo Drives: Cost is about 50% of servo drives with simpler commissioning, suitable for direct upgrade of stepper motors.