PC86 Pulse Closed Loop Stepper Motor Driver
Professional 2-phase stepper motor driver compatible with 86mm flange NEMA 34 motors, operating with DC24-110V or AC18-80V power supply.
Application Areas
Ideal for small to medium-sized automation equipment and instruments including:
- Engraving machines and marking systems
- Cutting machines and laser phototypesetting
- Plotters and CNC machine tools
- Automatic assembly equipment
Particularly effective in applications requiring low noise operation and high-speed performance.
Compatible Motor and Driver Combinations
| Stepper Motor Model |
Flange (mm) |
Torque (N.m) |
Current (A) |
Features and Applications |
Matching Driver |
| NEMA 23 |
57 |
0.6-3.2 |
1.0A-4.0A |
Suitable for small and medium-sized CNC equipment |
PC86 Closed-loop |
| NEMA 24 |
60 |
1.5-4.0 |
2.0A-5.0A |
Suitable for small to medium-sized CNC equipment, with slightly higher torque than NEMA23 |
PC86 Closed-loop |
| NEMA 34 |
86 |
3.0-12.0 |
3.0A-8.0A |
Suitable for heavy-load, high-rigidity applications |
PC86 Closed-loop |
| NEMA 42 |
110 |
10.0-30.0 |
5.0A-15.0A |
Suitable for large machine tools and heavy-duty conveyor lines |
PC86 Closed-loop |
Product Images
DIP Switch Configuration
The PC86 digital integrated low-voltage servo driver features an 8-bit DIP switch for setting subdivision precision, motor rotation direction, self-test, and function mode selection.
Subdivision Settings
| Pulse/rev |
SW1 |
SW2 |
SW3 |
SW4 |
| Default | On | On | On | On |
| 800 | Off | On | On | On |
| 1600 | On | Off | On | On |
| 3200 | Off | Off | On | On |
| 6400 | On | On | Off | On |
| 12800 | Off | On | Off | On |
| 25600 | On | Off | Off | On |
| 51200 | Off | Off | Off | On |
| 1000 | On | On | On | Off |
| 2000 | Off | On | On | Off |
| 4000 | On | Off | On | Off |
| 5000 | Off | Off | On | Off |
| 8000 | On | On | Off | Off |
| 10000 | Off | On | Off | Off |
| 20000 | On | Off | Off | Off |
| 40000 | Off | Off | Off | Off |
Additional Switch Functions
SW5: Controls motor direction - ON activates clockwise rotation (CW), OFF activates counterclockwise rotation (CCW).
SW6: Rigidity setting - When OFF, the actuator is rigid; when ON, it is less rigid.
Motor Housing Selection
| Motor |
SW7 |
SW8 |
| 60-30 | ON | ON |
| 86-45 | OFF | ON |
| 86-85 | ON | OFF |
| 86-120 | OFF | OFF |
Frequently Asked Questions
Common Application Issues and Solutions
| Phenomenon |
Potential Issues |
Countermeasure |
| The motor is not turning |
Power light is not on, motor shaft force, subdivision too small, drive protection, enable signal low, no response to control signal, motor circuit open, voltage too high or too low, motor or driver damaged |
Check power supply circuit, increase signal current to 7-16mA, select correct subdivision, power on again, pull up or disconnect enable signal, check power connection, check and connect motor circuit, check power supply, replace motor or driver |
| Location is inaccurate |
Signal interference, improper shielded ground connection, motor circuit open, subsection error |
Suppress interference, ensure reliable grounding, check and connect motor circuit, set correct subdivision |
| Motor stall during acceleration |
Acceleration time too short, motor torque too low, low voltage |
Prolong acceleration time, select high-torque motor, appropriately increase voltage |
Driver Technical Questions
What are the advantages of segmented servo drives?
- Reduces step angle per step, improving control precision and step uniformity
- Significantly reduces motor vibration and eliminates low-frequency oscillation
- Effectively reduces torque pulsation and improves output torque
Why does my motor only rotate in one direction?
- Directional signal may be too weak, wiring polarity incorrect, or signal voltage too high
- Pulse mode mismatch - ensure driver is set to pulse/direction mode
Product Warranty Terms
One-Year Warranty
Our company provides a one-year warranty on raw materials and manufacturing defects from the date of shipment. During the warranty period, we offer free repair services for defective products.
Warranty Exclusions
- Improper wiring, such as reversed polarity of power supply or unplugging while powered
- Unauthorized modification of internal components
- Use beyond electrical and environmental requirements
- Poor environmental heat dissipation
Maintenance Process
Please contact the relevant agent or our sales representative for warranty service.
Warranty Limitations
Our product warranty covers only components and manufacturing processes. We cannot guarantee suitability for specific applications, as this depends on technical specifications, operating conditions, and environmental factors.