IC42 Integrated Closed-Loop Stepper System
The IC42 is an integrated closed-loop stepper system with a 42mm frame size, combining a closed-loop stepper motor, drive circuit, and encoder in one compact unit. This all-in-one solution features step-loss prevention, high torque at high speeds, low vibration, and easy installation, making it ideal for equipment miniaturization and high-precision positioning applications.
System Overview
Product Definition
The IC42 is a 3-in-1 pulse closed-loop stepper system integrating motor, drive, and encoder within a 42mm frame. Equipped with a 32-bit DSP/ARM chip and vector closed-loop algorithm, it enables real-time position feedback via encoder to achieve precise position, speed, and current three-loop control.
Core Advantages
- Step-loss free operation
- Minimal torque decay at high speeds
- Low noise during low-speed operation
- Reduced heat generation
- Simplified wiring and easy installation
- Combines stepper motor affordability with servo system precision
Typical Applications
3C manufacturing equipment, automatic labeling machines, small robotic arms, precision motion stages, semiconductor testing equipment, automated instruments and meters, and other precision motion control applications.
Technical Specifications
| Parameter |
Specification |
| Motor Type |
Two-phase hybrid 42 closed-loop stepper motor, step angle 1.8° |
| Holding Torque |
0.4~0.8N*m (range of regular models) |
| Drive Core |
32-bit DSP/ARM chip, full-bridge PWM drive |
| Phase Current |
Rated 0.8~2.5A/phase, peak up to 3.2A/phase |
| Input Voltage |
DC 24~48V |
| Encoder |
1000-line incremental magnetic encoder (equivalent to 4000PPR) |
| Control Signal |
Pulse+Direction/Double Pulse modes, support differential/single-ended input with optocoupler isolation |
| Max Pulse Response Frequency |
200kHz |
| Microstepping Range |
Adjustable from 200 to 51200 Pulse/r |
| Protection Functions |
Overcurrent, overvoltage, undervoltage, overheating and position deviation protection |
System Component Features
42 Closed-Loop Motor
The stator features a two-phase winding design with a permanent magnet built into the rotor. Equipped with a 1000-line incremental magnetic encoder for real-time rotor position feedback, the drive dynamically corrects position errors through closed-loop algorithms. Provides stable operation without jitter at low speeds, significant improvement in torque output at high speeds, and lower heat generation compared to traditional open-loop stepper motors. Installation dimensions are fully compatible with standard 42 open-loop stepper motors for direct replacement and upgrade.
Built-in Drive
Supports three control modes: position control (pulse command), speed control (analog/communication command), and torque control to meet various application requirements. Interface configuration includes power interface, differential pulse (DIR/PUL) interface, enable (ENA) interface, alarm (ALM) interface, and encoder feedback interface. Features quick setting of microstepping, current, motion direction and other parameters via DIP switches or buttons. Equipped with vector control, intermediate frequency vibration suppression and digital filtering algorithms to effectively reduce motor running noise and vibration while improving motion smoothness.
Model Selection Guide
| Load Torque Range |
Recommended Model |
Application Scenarios |
Recommended Supply Voltage |
| 0.4~0.5N*m |
IC42-04/IC42EC04 |
3C small assembly equipment, desktop labeling machines |
DC 24~48V |
| 0.6~0.72N*m |
IC42-06/IC42EC06 |
Small robotic arm joints, precision sliding tables |
DC 24~48V |
| 0.7~0.8N*m |
IC42-08/IC42EC08 |
Automated instrument positioning axes, small CNC feed axes |
DC 36~48V |
Selection Principle: For light-load scenarios, prioritize small-torque models to reduce cost and energy consumption; for heavy-load or high-speed operation scenarios, match large-torque models with high-voltage power supply to ensure stable torque output.
DIP Switch Configuration
The IC42 drive is equipped with 8-bit DIP switches (SW1-SW8) divided into three functional groups: microstepping setting (SW1-SW4), current setting (SW5-SW6), and direction/control mode setting (SW7-SW8). All DIP switch adjustments must be performed with power off.
Microstepping Settings (SW1-SW4)
| Microstepping Value |
Pulses per Revolution |
SW1 |
SW2 |
SW3 |
SW4 |
Application Scenarios |
| 200 |
200 |
OFF |
OFF |
OFF |
OFF |
High-speed and low-precision feeding/transmission scenarios |
| 400 |
400 |
ON |
OFF |
OFF |
OFF |
Scenarios balancing regular speed and precision |
| 1000 |
1000 |
OFF |
ON |
OFF |
OFF |
Mainstream positioning scenarios (Recommended) |
| 2000 |
2000 |
ON |
ON |
OFF |
OFF |
High-precision positioning stages |
| 5000 |
5000 |
OFF |
OFF |
ON |
OFF |
High-resolution micro-displacement scenarios |
| 10000 |
10000 |
ON |
OFF |
ON |
OFF |
Ultra-high-precision testing equipment |
| 16000 |
16000 |
OFF |
ON |
ON |
OFF |
Precision semiconductor processing equipment |
| 51200 |
51200 |
ON |
ON |
ON |
ON |
Nano-level micro-positioning scenarios |
Recommended Common Settings: 1000~2000 Pulse/r, balancing positioning precision and system response speed.
Current Settings (SW5-SW6)
| Set Current |
SW5 |
SW6 |
Matching Recommendations |
| 0.8A |
OFF |
OFF |
Suitable for IC42-04 under light-load conditions to reduce motor temperature rise |
| 1.6A |
ON |
OFF |
Rated current configuration for IC42-04, ensuring basic torque output |
| 2.0A |
OFF |
ON |
Rated current configuration for IC42-06, suitable for medium-load scenarios |
| 2.5A |
ON |
ON |
Rated current configuration for IC42-08, must be used with 36~48V power supply |
Setting Recommendations: Prioritize configuration according to motor rated current; for light-load conditions, reduce the current level appropriately to lower heat generation and energy consumption.
Direction/Control Mode Settings (SW7-SW8)
| Function Type |
Function Description |
SW7 |
SW8 |
| Motion Direction |
Forward rotation (default direction) |
OFF |
- |
| Motion Direction |
Reverse rotation |
ON |
- |
| Control Mode |
Pulse+Direction (Recommended) |
- |
OFF |
| Control Mode |
Double Pulse (independent control of forward/reverse pulses) |
- |
ON |
Installation and Operation Guidelines
- Torque Matching: Select the corresponding model according to the actual load torque to avoid step loss or motor burnout caused by under-matching.
- Power Supply Requirements: Recommended DC 24~48V power supply; for heavy-load and large-torque models, 36~48V voltage is recommended to improve torque output at high speeds.
- Microstepping Configuration: Choose high microstepping for high-precision positioning scenarios and low microstepping for high-speed motion scenarios to balance precision and response speed.
- Heat Dissipation: Reserve sufficient heat dissipation space during installation to ensure optimal performance and longevity.
Product Images
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