Leadshine® EM882S 2-Phase Digital Stepper Motor Drive
Product Description
The Leadshine® EM882S is a high-performance digital microstep drive designed to control 2-phase and 4-phase hybrid stepper motors. It combines advanced stepper control technology with easy configuration, smooth motion, and reliable operation.
With an output current range of 0.5–8.2 A Peak (up to 5.86 A RMS) and an operating voltage range of 20–80 VDC, the EM882S is suitable for a wide range of NEMA 23, NEMA 24, and NEMA 34 stepper motors.
The drive supports both Step & Direction (PUL/DIR) and CW/CCW (double pulse) control modes, with a maximum pulse input frequency of 200 kHz. Its advanced features include automatic motor tuning, motor model selection, anti-resonance control, configurable command smoothing, and sensorless stall detection.
Microstep resolution and output current can be configured using the built-in DIP switches or Leadshine ProTuner software, providing flexibility for different motor and motion control requirements.
The EM882S is an excellent choice for CNC machinery, engraving machines, laser cutters, industrial automation, and other precision motion control applications.
Key Features
- Wide Operating Voltage: Supports 20–80 VDC power input, with 24–72 VDC recommended for typical operation.
- High Output Current: Adjustable output current from 0.5 to 8.2 A Peak (up to 5.86 A RMS).
- Wide Motor Compatibility: Designed for 2-phase and 4-phase hybrid stepper motors, including NEMA 23, 24, and 34.
- Dual Control Modes: Supports Step & Direction (PUL/DIR) and CW/CCW (double pulse) control.
- High Pulse Frequency: Maximum pulse input frequency of 200 kHz.
- Flexible Microstepping: Supports 16 microstep resolutions from 400 to 51,200 pulses/revolution via DIP switches, and 200 to 51,200 via software.
- Automatic Motor Tuning: Automatically configures current-loop parameters.
- Motor Model Selection: Provides optimized current-loop and resonance damping parameters for selected Leadshine motors.
- Anti-Resonance Technology: Helps reduce vibration and improve motion smoothness.
- Command Smoothing: Configurable pulse command smoothing helps improve acceleration and reduce motor vibration.
- Sensorless Stall Detection: Provides motor stall protection without requiring an external encoder.
- Fault Output: Provides an output signal for external monitoring when drive protection is activated.
- Idle Current Reduction: Selectable 50% or 100% holding current when the motor is stopped.
- Soft Start: Helps prevent sudden motor movement when the drive is powered on.
- Protection Functions: Includes over-voltage and over-current protection.
- Certifications: CE certified and RoHS compliant.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Leadshine |
| Model | EM882S |
| Product Type | Digital Microstep Stepper Drive |
| Series | EM Series |
| Motor Phases | 2-Phase / 4-Phase |
| Compatible Motor Types | Hybrid Stepper Motors |
| Compatible Motor Frame Sizes | NEMA 23, NEMA 24, NEMA 34 |
| Operating Voltage | 20–80 VDC |
| Recommended Power Supply Voltage | 24–72 VDC |
| Output Current Range | 0.5–8.2 A Peak |
| Maximum RMS Output Current | 5.86 A RMS |
| Maximum Pulse Input Frequency | 200 kHz |
| Minimum Pulse Width | 2.5 μs |
| Minimum Direction Setup Time | 5 μs |
| Logic Signal Voltage | 5 V |
| Control Modes | PUL/DIR, CW/CCW |
| Microstep Resolution (DIP Switches) | 400–51,200 pulses/rev |
| Microstep Resolution (Software) | 200–51,200 pulses/rev |
| Output Current Configuration | DIP Switches / ProTuner |
| Motor Tuning | Auto-tuning and Motor Model Selection |
| Stall Detection | Sensorless |
| Fault Output | Yes |
| Protection | Over-voltage, Over-current, Motor Stall |
| Cooling | Natural or Forced Cooling |
| Operating Temperature | 0–50°C |
| Ambient Temperature | 0–65°C |
| Storage Temperature | -20–65°C |
| Humidity | 40–90% RH |
| Dimensions (L × W × H) | 151 × 97 × 52 mm |
| Weight | Approx. 500 g |
| Certifications | CE, RoHS |
Output Current Configuration
The EM882S provides eight selectable output current settings through DIP switches SW1, SW2, and SW3.
| Peak Current | RMS Current |
|---|---|
| 2.1 A | 1.48 A |
| 2.7 A | 1.93 A |
| 3.6 A | 2.57 A |
| 4.6 A | 3.29 A |
| 5.5 A | 3.93 A |
| 6.4 A | 4.57 A |
| 7.3 A | 5.21 A |
| 8.2 A | 5.86 A |
The output current can also be adjusted through Leadshine ProTuner software, from 0.5 A to 8.2 A in 0.1 A increments.
For a 4-lead stepper motor, Leadshine recommends setting the drive's peak output current to no more than 1.2 times the motor's rated phase current to help prevent overheating.
Microstep Resolution
The EM882S supports 16 microstep settings through its DIP switches, covering 400 to 51,200 pulses per revolution for a 1.8° stepper motor.
Additional resolutions can be configured using Leadshine ProTuner software, with settings ranging from 200 to 51,200 pulses per revolution.
This flexibility allows the drive to be configured for different motion requirements, balancing positioning resolution, smoothness, and motor performance.
Motor Compatibility and Connections
The EM882S is designed to drive 2-phase and 4-phase bipolar hybrid stepper motors with 4, 6, or 8 leads.
- 4-Lead Motors: Recommended for straightforward connection and excellent performance.
- 6-Lead Motors: Can be connected using half-coil or full-coil configurations.
- 8-Lead Motors: Can be connected in series or parallel, depending on the required speed and torque characteristics.
The drive supports NEMA 23, NEMA 24, and NEMA 34 motor sizes.
Motor Model Selection and Auto-Tuning
The EM882S includes a rotary switch for selecting supported Leadshine motor models. This function automatically configures current-loop and resonance damping parameters when the drive is powered on.
Supported motor selections include:
| Motor Model | Rotary Switch Code |
|---|---|
| Default | 0 |
| 57CM23 | 1 |
| 60CM30X | 2 |
| 86CM35 | 3 |
| 86HS40 | 4 |
| 86CM45 | 5 |
| 86CM80 | 6 |
| 86CM85 | 7 |
After changing the rotary switch setting, the drive must be restarted to activate the selected configuration.
Fault Output and Protection
The EM882S includes a fault output connector (ALM+ and ALM-) that can be connected to an external controller or monitoring system.
The drive provides protection against:
- Over-current.
- Over-voltage.
- Motor stall.
The red status LED indicates protection conditions through different flashing patterns. The fault output can also be used to detect protection events externally.
Applications
The Leadshine EM882S is suitable for a wide range of motion control applications, including:
- CNC routers and milling machines.
- CNC engraving machines.
- Laser cutting and plasma cutting machines.
- Woodworking machinery.
- Industrial automation systems.
- Electronics manufacturing equipment.
- Packaging and production machinery.
- Factory assembly lines.
- Positioning and material handling systems.
- Vending machines.
Frequently Asked Questions
1. What type of stepper motors are compatible with the Leadshine EM882S?
The EM882S supports 2-phase and 4-phase hybrid stepper motors with NEMA 23, NEMA 24, and NEMA 34 frame sizes. It can also drive motors with 4, 6, or 8 leads when connected according to the appropriate wiring configuration.
2. What is the maximum output current of the EM882S?
The maximum output current is 8.2 A Peak, equivalent to approximately 5.86 A RMS. The drive also provides multiple current settings and software-based adjustment.
3. What power supply is required for the EM882S?
The operating voltage range is 20–80 VDC. Leadshine recommends a 24–72 VDC power supply for typical operation, allowing a margin for voltage fluctuations and back EMF.
4. Does the EM882S support both Pulse/Direction and CW/CCW control?
Yes. The drive supports Step & Direction (PUL/DIR) and CW/CCW (double pulse) control modes. The control mode can be configured through Leadshine ProTuner software.
5. What is the maximum pulse input frequency?
The maximum pulse input frequency is 200 kHz, with a minimum pulse width of 2.5 μs.
6. What is the purpose of the motor model selection switch?
The rotary switch allows users to select specific supported Leadshine motor models. The drive then automatically configures current-loop and resonance damping parameters for the selected motor. The power supply must be restarted after changing the selection.
7. Does the EM882S support automatic motor tuning?
Yes. The EM882S includes auto-tuning, which automatically configures current-loop parameters when the drive is powered on. It also provides motor model selection for supported Leadshine motors.
8. Can the EM882S be used with stepper motors from other manufacturers?
Yes. The manual specifies that the EM882S can drive compatible stepper motors manufactured by Leadshine or other manufacturers. However, the motor's phase current, wiring configuration, voltage requirements, and electrical characteristics must be checked to ensure compatibility.
Download:
- Driver Datasheet
- شهادة المطابقة للمواصفات (Certificate of Conformity)
- شهادة المطابقة للمواصفات (Certificate of Conformity - LVD)