Description

SL2236A Stepper Driver is a high-performance digital motor controller engineered to deliver smooth, accurate, and reliable motion control for a wide range of industrial automation applications. Designed to work seamlessly with 2-phase stepper motors, the SL2236A Stepper Driver provides precise current regulation, advanced microstepping technology, and stable pulse processing, making it an ideal solution for CNC machinery, laser equipment, automated assembly systems, packaging machines, textile equipment, and precision positioning devices.

As industrial automation continues to demand higher efficiency and greater positioning accuracy, the SL2236A Stepper Driver offers an excellent balance between performance, reliability, and cost-effectiveness. By optimizing motor operation and reducing resonance, it helps improve machine productivity while extending motor service life.

Precise Control and Smooth Motor Performance

One of the key advantages of the SL2236A Stepper Driver is its advanced digital control algorithm. Unlike conventional analog drivers, this driver continuously adjusts motor current to achieve smoother motion, lower vibration, and reduced acoustic noise. As a result, machines operate more quietly while maintaining exceptional positioning accuracy.

Furthermore, the driver supports multiple microstep resolutions, allowing users to fine-tune motion performance according to specific application requirements. Whether used in a precision CNC router, automated inspection system, or laboratory equipment, the SL2236A Stepper Driver delivers stable torque output and accurate speed control throughout the operating range.

Designed for Industrial Reliability

Reliability is critical in automation environments. Therefore, the SL2236A Stepper Driver incorporates multiple protection functions, including over-voltage protection, over-current protection, short-circuit protection, and overheating protection. These intelligent safeguards help prevent unexpected downtime and protect both the driver and motor from damage.

In addition, the compact housing design allows easy integration into electrical control cabinets and automation equipment. The driver maintains stable performance even during continuous operation, making it suitable for demanding industrial production lines and long-duty-cycle applications.

Precision Manufacturing and Quality Assurance

Every SL2236A Stepper Driver is manufactured using high-quality electronic components and advanced SMT production technology. Precision circuit assembly, strict quality control procedures, and comprehensive functional testing ensure consistent performance and long-term durability.

Before shipment, each unit undergoes electrical verification, load simulation testing, thermal stability evaluation, and operational inspections. This rigorous manufacturing process guarantees dependable performance in real-world industrial environments.

SL2236A Stepper Driver – Technical Specifications

General Information

Product Model: SL2236A Stepper Driver
Product Type: Digital 2-Phase Stepper Motor Driver
Control Technology: Advanced DSP-Based Digital Control
Compatible Motors: NEMA 17, NEMA 23, NEMA 24, NEMA 34 Hybrid Stepper Motors
Motor Phase: 2-Phase Stepper Motors
Installation Method: DIN Rail or Panel Mounting

Electrical Specifications

Input Voltage Range: 20VAC – 60VAC / 24VDC – 80VDC
Output Current Range: 0.5A – 3.6A Peak (Adjustable)
Logic Signal Voltage: 5V – 24V Compatible
Pulse Input Frequency: Up to 200 kHz
Power Consumption: Optimized Low-Power Design
Current Control Method: Automatic Dynamic Current Regulation

Motion Control Features

Microstep Resolutions: 400, 800, 1600, 3200, 6400, 12800, 25600 Pulses/Rev
Control Interface: PUL/DIR/ENA Standard Signals
Positioning Performance: High-Resolution Microstepping Control
Motor Operation: Smooth Low-Speed and High-Speed Performance
Anti-Resonance Function: Digital Resonance Suppression Technology
Idle Current Reduction: Automatic Current Reduction During Standstill

Protection Functions

Over-Voltage Protection: Built-In
Over-Current Protection: Built-In
Short-Circuit Protection: Built-In
Motor Phase Error Detection: Supported
Over-Temperature Protection: Intelligent Thermal Monitoring
Power Reversal Protection: Enhanced Circuit Protection Design

Mechanical Specifications

Housing Material: Industrial-Grade Aluminum Alloy Case
Cooling Method: Natural Air Cooling with Heat-Dissipation Structure
Dimensions: Compact Industrial Design for Space-Saving Installation
Weight: Approximately 0.3 – 0.6 kg

Environmental Specifications

Operating Temperature: -10°C to +50°C
Storage Temperature: -20°C to +70°C
Humidity Range: 10% – 90% RH (Non-Condensing)
Vibration Resistance: Industrial Automation Standard
Protection Rating: IP20

Typical Applications

CNC routers and engraving machines
Laser cutting and marking systems
Automated packaging equipment
Textile and printing machinery
Semiconductor processing equipment
Electronic assembly systems
Pick-and-place automation platforms
Precision positioning devices
Industrial robotics and material handling systems

Key Features

Advanced digital stepper control technology
High-speed pulse response up to 200 kHz
Adjustable output current for flexible motor matching
Low noise and reduced vibration operation
Multiple built-in protection mechanisms
Reliable performance for continuous industrial operation
Excellent compatibility with a wide range of hybrid stepper motors

Performance index:

1. Electric index:

Explain

SL2236A

SL2236A Subdivide Setting list

min value

Typical value

Max value

Unit

Subdivide No.

128

Output current (peak value)

0.2

–

2.2

Supply Voltage

VDC

OFF

Control signal current

OFF

Stepping pulse frequency

–

300

KHz

Stepping pulse width

–

Indicator light pin function description

Direction signal width

100

–

Mark symbol

Function

Annotation

Undervoltage protection point

–

7.5

–

VDC

PWR

Power light

When the power is on, the indicator light is on

Overvoltage protection point

–

VDC

Motor coil current setting potentiometer

Adjust the motor phase current; counterclockwise to reduce and clockwise to increase

Drive initialization time

–

Input signal optoelectronic isolation positive end

Connect signal power supply; +5 V, ~ +24 V can be driven

Insulation resistance

500

–

MΩ

Stepping pulse signal

The falling edge is effective. Whenever the pulse changes from high to low, the motor takes a step, and the pulse width is required>2.5us

2. Environmental index

Direction control signal

Used to change motor steering

Type of cooling

Natural cooling or forced air cooling

Motor release signal

When effective (low level), turn off the motor coil current, and the motor is in a free state

Environmental conditions

Occasion

Can’t be put next to other hot equipment; avoid dust, oil, corrosive gas, humidity, and places with strong vibration; no combustible gas and conductive dust

V+

Power supply positive electrode

DC6~30v, Direct current input, Power >100W

V-

Power supply negative electrode

Temperature

0~+50°C

A+, A-

Motor connection electrical wiring

B-,B+ ——Ｍ——A+,A-

Humidity

40~90%RH

B+, B-

Vibration

10~55Hz/0.15mm

Storage temperature

（-20°C~65°C）

Remark: 1. Do not connect the power in reverse. Input voltage must not exceed DC36V.

Weight

180g

2. The green indicator PWR will turn on when the driver is powered on

COM port and connection:

Name

Function

PUL+(CCW+)

Pulse input signal: The pulse effective edge is adjustable; default pulse rising edge is valid. In order to reliably respond to the pulse signal, the pulse width should be greater than 1.2µs. Input voltage range:3.3~28V. Double pluse mode(under) : CCW

PUL-(CCW-)

DIR+(CW+)

Direction input signal: High/low electrical level signal. In order to ensure reliable motor reversing, the direction signal should be established at least 5µs before the pulse signal. The initial running direction of the motor is related to the wiring of the motor windings. The direction of the initial running of the motor can be changed by interchanging any one-phase winding (such as A+ and A- exchange). Double pluse mode(under) : CW

DIR-(CW-)

ENA+(ALM+)

Enable control signals: this input signal is used to enable or disable drive output.ENA is connected to a low level (or the internal optocoupler turns on), the driver will cut off each phase of the motor current, put the motor in a free state, and it can’t respond to the stepping pulse. When this function is not needed, suspending the enable signal terminal is OK. Input voltage range: 3.3~28V. Can be set according to the customer’s requirements as an alarm output terminal or a running speed-adjusted output terminal

ENA-(ALM-)

GND

Direct current source

VDC

Direct current power positive, Range: +8~+36V, recommended +24V