JMC 2DM542 4.2A 2-Phase Digital Stepper Motor Driver

Specifications:

• Type: 2-phase digital stepper motor driver
• Motor Compatibility: Suitable for 2-phase hybrid stepper motors
• Power Supply: 24-50V DC (recommended to use switching power supply)
• Max Output Current: 4.2A peak, 3.0A RMS

2. Power and Input Specifications:

• Power Input Voltage Range: 24V to 50V DC
• Max Output Voltage: 50V DC
• Min Input Voltage: 20V DC (for stable operation)
• Current Setting: Adjustable in 8 levels, ranges from 1.0A to 4.2A
• Microstep Resolution: Configurable from full-step to 128 micro-steps

3. Control Signals:

• Input Signal Types: Pulse (PUL), Direction (DIR), Enable (ENA)
• Pulse Input Frequency: 0-200 kHz (optocoupler isolated)
• Control Mode: Step and Direction
• Signal Logic: Can accept both PNP and NPN signals
• Isolation Voltage: 500V (pulse/direction enable signals)

4. Motor Control Features:

• Microstepping Settings: 16 types of micro-step divisions (from full-step to 128 micro-steps)
• Self-Test Functionality: Self-test mode available for driver diagnostic
• Auto Half-Current Function: The driver automatically reduces current by half when the motor is at a standstill to reduce power consumption and heating
• Anti-Resonance Feature: Smooths the motor operation in low-speed range, reducing noise and vibration
• Idle Current Adjustment: Can be adjusted between 50%-100% of the rated current

5. Protection Features:

• Overvoltage Protection: The driver will shut down if the input voltage exceeds the rated limit (50V DC).
• Undervoltage Protection: The driver will shut down if the input voltage is too low (below 20V DC).
• Overcurrent Protection: Protects against phase-to-phase short circuits or excessive motor current.
• Overheating Protection: Integrated over-temperature protection, shuts down if the internal temperature exceeds 70°C.
• Fault Output: LED indicator to signal fault status like overcurrent, overvoltage, and phase errors.

6. Mechanical & Environmental:

• Dimensions: 118mm × 75.5mm × 34mm
• Weight: Approx. 0.25 kg
• Mounting Type: Wall-mounted or panel-mounted
• Operating Temperature: 0°C to +50°C
• Storage Temperature: -20°C to +70°C
• Humidity Range: <80% (non-condensing)
• Cooling Method: Natural cooling or forced air cooling

7. Performance Specifications:

• Speed-Torque Characteristics: Optimized to maintain torque over a wide speed range
• Dynamic Response: High performance at both low and high speeds, maintaining smooth motor rotation
• Efficiency: Energy-efficient design with low heat generation

8. Connector Pinouts:

• Power Input: V+ (positive), V- (negative)
• Control Signals: PUL+, PUL-, DIR+, DIR-, ENA+, ENA- (for pulse, direction, and enable signals)
• Motor Outputs: A+, A-, B+, B- (motor winding connections)