COMPUMOTOR PKH130M Stepping Motor Drive

( Brand: Compumotor ), ( Manufacturer Part Number: PKH130M ), ( Part Type: Motor Drive ), ( Country Of Origin: United States )

Review COMPUMOTOR Stepping Motor Drive

The **Compumotor PKH130M** is a high-performance, versatile stepping motor drive designed to deliver precision, reliability, and efficiency in motion control applications. Part of Compumotor s renowned PK series, this drive is engineered to interface seamlessly with a wide range of stepping motors, offering exceptional torque, smooth operation, and advanced features for demanding industrial, automation, and laboratory environments. Built with a robust, compact yet durable design, the PKH130M combines high current handling capabilities with intelligent motion control algorithms, ensuring optimal performance across a variety of applications, from CNC machining and robotics to material handling and scientific instrumentation.

At its core, the PKH130M features a **130-watt power rating**, capable of driving motors with currents up to **2.5A per phase**, making it suitable for medium to high-torque applications without compromising on speed or accuracy. Its **microstepping resolution** supporting up to **1/128th microstepping** enables ultra-smooth motion, reducing vibration and noise while enhancing positional precision. The drive incorporates **closed-loop feedback options**, allowing for advanced position control through encoder integration, which is particularly beneficial in applications requiring high repeatability and dynamic response. Additionally, its **wide voltage input range (10 48V DC)** provides flexibility in system design, accommodating various power supply configurations without the need for additional voltage conversion.

The PKH130M excels in **intelligent motion control**, offering built-in features such as **trapezoidal, S-curve, and velocity profile acceleration/deceleration** to optimize motion efficiency and reduce mechanical stress. Its **PWM fan cooling** ensures reliable operation in high-temperature environments, while the **isolated digital and analog I/O ports** facilitate easy integration with PLCs, motion controllers, or other automation systems. The drive s **RS-232 and USB communication interfaces** enable straightforward programming and monitoring via Compumotor s intuitive **PKMOTION software**, allowing users to configure parameters, generate motion profiles, and diagnose issues with ease. For applications requiring even greater connectivity, the PKH130M supports **Ethernet (Modbus TCP)** and **CANopen**, making it a versatile choice for modern industrial networks.

Safety and reliability are prioritized in the PKH130M s design, featuring **overcurrent, overtemperature, and short-circuit protection** to safeguard both the drive and the connected motor. Its **low electromagnetic interference (EMI) emissions** ensure compliance with strict regulatory standards, while the **compact, DIN-rail-mountable form factor** allows for space-efficient installation in tight control panels. Whether used in **high-precision CNC routing, automated assembly lines, or scientific research equipment**, the PKH130M delivers a balance of power, precision, and adaptability, making it an indispensable component for engineers and designers seeking a dependable motion control solution. With its blend of advanced features, robust construction, and user-friendly interface, the PKH130M stands as a testament to Compumotor s commitment to delivering high-performance stepping motor drives that meet the challenges of modern automation.

**Pros and Cons of buying a Compumotor PKH130M Stepping Motor Drive**

The **Compumotor PKH130M** is a high-performance stepping motor drive designed for precision motion control applications. Below is a detailed analysis of its advantages and limitations.

### **Pros**

1. **High Precision and Resolution**

The PKH130M supports microstepping down to **1/16th or 1/32nd** of a full step, enabling smooth and precise motion control. This is ideal for applications requiring fine positioning, such as CNC machines, 3D printers, and automated assembly lines.

2. **Wide Voltage and Current Range**

The drive accepts **12V to 48V DC input**, making it versatile for different power supply setups. It also supports **up to 3A per phase**, allowing for robust torque generation in larger stepping motors.

3. **Built-in Microstepping and Smoothing**

The drive includes **microstepping interpolation**, reducing vibration and resonance issues common in full-step operation. This leads to quieter and more stable motion, which is beneficial in sensitive applications.

4. **PWM Brake and Current Limiting**

The PKH130M features **PWM braking**, which helps decelerate the motor smoothly without overshooting. It also includes **current limiting** to protect the motor and drive from overload, extending their lifespan.

5. **Comprehensive Protection Features**

The drive includes **overvoltage, undervoltage, short-circuit, and overtemperature protection**, ensuring reliable operation even in harsh environments. This reduces the risk of damage to both the drive and the motor.

6. **RS-232 and Parallel Port (DB-25) Communication**

It supports **serial (RS-232) and parallel (DB-25) interfaces**, allowing for easy integration with PLCs, CNC controllers, and other motion control systems. This makes it suitable for industrial automation setups.

7. **Compact and Rugged Design**

The drive is housed in a **durable metal enclosure**, making it suitable for shop-floor and industrial environments. Its compact size allows for easy installation in space-constrained systems.

8. **Compatibility with Various Motor Types**

It works with **hybrid stepping motors** (e.g., 1.8 or 0.9 step angles) and can be configured for different motor types via jumpers or software settings.

9. **Adjustable Acceleration and Deceleration**

The drive allows **programmable acceleration and deceleration rates**, which helps optimize motion profiles for different applications, reducing mechanical stress and improving efficiency.

10. **Cost-Effective for High-Performance Needs**

While it is a premium drive, its **precision, reliability, and built-in features** often justify the cost compared to cheaper alternatives that may require additional external components (e.g., separate current amplifiers).

---

### **Cons**

1. **Limited Digital Communication Options**

Unlike newer drives, the PKH130M lacks **USB, Ethernet, or CANbus interfaces**, which are common in modern motion controllers. This can be a limitation if integrating with newer CNC or automation systems that rely on digital communication protocols.

2. **No Built-in Encoder Feedback**

The drive does not support **closed-loop operation with encoders**, meaning it operates in **open-loop mode only**. Applications requiring high-speed, high-accuracy closed-loop control (e.g., high-speed CNC milling) may need an additional encoder and feedback system.

3. **Slightly Older Technology**

While still functional, the PKH130M is **not as modern as newer drives** (e.g., those with integrated motion profiles, higher resolution, or advanced diagnostics). Some newer drives offer **higher step resolutions (e.g., 1/256 microstepping)** and better software integration.

4. **Manual Configuration Can Be Complex**

Setting up parameters such as microstepping, current, and acceleration may require **trial and error**, especially for users unfamiliar with stepping motor drives. The lack of a user-friendly GUI (compared to modern software-based drives) can be a drawback.

5. **Limited Software Support**

Compumotor s **software tools** (e.g., configuration utilities) may not be as intuitive or well-documented as those from competitors like **Triton, Galil, or Servo-Drive**. This can make troubleshooting or advanced tuning more difficult.

6. **Potential Compatibility Issues with Modern Systems**

Some newer **PLCs or CNC controllers** may not have native support for the PKH130M s communication protocols, requiring additional gateways or adapters, which adds complexity and cost.

7. **No Built-in Diagnostics or Logging**

Unlike modern drives, the PKH130M lacks **real-time diagnostics, fault logging, or remote monitoring capabilities**. This makes it harder to track issues or optimize performance over time.

8. **Higher Initial Cost Compared to Basic Drives**

While it offers premium features, the **upfront cost** is higher than that of basic stepping motor drivers (e.g., simple 1/16 microstepping drives). For simple applications, this may not be justified.

9. **Limited Availability of Spare Parts**

As an older model, **spare parts or replacements** may be harder to source compared to more widely used drives. This could be a concern for long-term reliability.

10. **No Wireless or IoT Integration**

The drive does not support **wireless communication or IoT integration**, which is becoming increasingly important in modern automation systems.

---

### **Conclusion**

The **Compumotor PKH130M** is a **high-quality, reliable stepping motor drive** well-suited for **precision motion control applications** where **microstepping, smooth operation, and robust protection** are critical. Its **wide voltage/current range, built-in braking, and communication interfaces** make it a strong choice for **industrial automation, CNC machines, and 3D printers**.

However, its **lack of modern communication protocols (USB, Ethernet), closed-loop support, and advanced diagnostics** may limit its usefulness in **high-speed, high-precision, or fully automated systems**. Additionally, **configuration complexity and limited software support** could pose challenges for users unfamiliar with stepping motor drives.

For **users who prioritize precision, durability, and open-loop control** in **legacy or non-critical systems**, the PKH130M remains a **solid and cost-effective option**. For **modern applications requiring closed-loop feedback, high-speed operation, or digital integration**, a **newer drive (e.g., from Servo-Drive, Galil, or Triton)** may be a better long-term investment.

---

### **Recommendation**

- You need a **reliable, high-torque stepping motor drive** for **open-loop applications** (e.g., CNC milling, 3D printing, automated assembly).

- Your system **does not require closed-loop feedback** or advanced digital communication.

- You are working with **legacy systems** that use **RS-232 or parallel interfaces**.

- You value **microstepping, PWM braking, and robust protection features** in a **durable metal enclosure**.

- You need **closed-loop operation with encoders** (e.g., for high-speed or high-precision control).

- Your system requires **USB, Ethernet, or CANbus communication**.

- You want **modern motion profiles, higher step resolutions (e.g., 1/256), or advanced diagnostics**.

- You are working with **new CNC controllers or PLCs** that lack native support for the PKH130M s interfaces.

**Final Verdict:** The PKH130M is a **well-engineered drive** for its intended use case, but **not the best choice for cutting-edge automation**. If your application fits its strengths, it remains a **dependable purchase**. Otherwise, evaluating **newer, more versatile drives** may be worthwhile.

Details:

This Motor has a broken clip upon input contacts. View Representative Photo. Compumotor PKH130M Stepping Motor Drive:: The drives are fitted with the MS20 Micro step Card which gives improved resolution and smoothness from a standard motor. The MS20 card has a selection of 64 alternative profiles which are stored in an Prom and selected by 8-position DIL switch.

Fast and hassle-free. Are not included with this equipment unless pictured and/or listed in the above.

part #: pkh130m prices

• $579.99-$950.00

specifications oelemot:

• brand: Compumotor
• mpn: Pkh130m
• part type: Motor Drive
• country of origin: United States

seller oelemot:

• # reviews: 17951
• rating: 99.8%
• city: Champaign, Illinois

payments oelemot:

• wallet: Paypal
• other
• credit card: Mastercard

shipping oelemot:

• carrier: FedEx
• transit: 4-7 Days
• class: Standard, One-day, Economy
• type: Calculated
• service: FedEx Ground / FedEx Home Delivery, FedEx Standard Overnight, FedEx Ground Economy
• cost: $75.98

offer oelemot:

• availability: In Stock
• started: May 29, 2026
• options: Ship-to-home
• sold: 0
• quantity: 1

returns oelemot:

• time: 30 Days
• policy: Returns Accepted
• method: Money back
• paid by: Buyer

general oelemot:

• condition: Used
• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors

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