Product
28 Backpack-type Integrated Motor (RS485)
Product Overview
LC28BK-R integrated stepper driver, with ultra-compact structure and integrated wiring, can greatly save equipment space and reduce wiring complexity.-in high-precision encoder with 16384PPR, paired with closed-loop feedback algorithm, positioning accuracy up to ±0.02°, which effectively eliminate missing steps, suitable for high-precision positioning scenarios.It supports Modbus-RTU protocol, contains 8 segments of internal position table (supporting automatic cycle segments), with functions such as homing, IO position trigger, JOG, alarm reset, etc.; multi-axis control can be achieved via touch screen or controller with485 interface, adapting to different working occasions.
Features
Product Specifications
Item | Description |
Power Supply Voltage | DC20V～30V |
Power Supply Power | Single Motor Power ≥30W |
Output Peak Current | 2A |
Encoder Resolution | 16384ppr (No encoder for open-loop model) |
Communication Interface | COM: Serial port, requires special serial cable for communication; RS485: 485 communication port. |
Communication Protocol | Modbus RTU |
Storage Temperature | -20℃～65℃ |
Protection Measures | Features overcurrent, overvoltage, large deviation alarm protection functions |
Operating Temperature | 0℃～50℃ |
Operating Humidity | 40～90%RH (non-condensing) |
Vibration Frequency | Less than 0.5G (4.9m/s²) 10Hz～55Hz (non-continuous operation) |
Operating Environment | Avoid dust, oil stains, corrosive gases, excessive humidity and strong vibration; combustible gases and conductive dust are prohibited. |
Technical Parameters
RS485 Model | Step Angle (°) | Body Length L (mm) | Holding Torque (N.m) | Phase Current (A) | Rotational Inertia (g.cm²) | Motor Weight (kg) | Encoder Line Count (PPR) |
LC28BK-R-32N009 | 1.8 | 51.5 | 0.09 | 1.0 | 20 | 0.14 | None |
LC28BK-R-51N018 | 1.8 | 70.5 | 0.18 | 0.7 | 30 | 0.22 | None |
LC28BK-RC-32N009 | 1.8 | 51.5 | 0.09 | 1.0 | 20 | 0.14 | 1000 |
LC28BK-RC-51N018 | 1.8 | 70.5 | 0.18 | 0.7 | 30 | 0.22 | 1000 |
Wiring Diagram / Dimension Drawing
Motor Shaft Output Description
Model (Open-loop) | Model (Closed-loop) | Shaft Diameter D (mm) | Shaft Extension (mm) | Shaft Length (mm |
LC28BK-R-32N009 | LC28BK-RC-32N009 | φ5 | Flat 0.5×23 | 26 |
LC28BK-R-51N018 | LC28BK-RC-51N018 | φ5 | Flat 0.5×23 | 26 |
Electrical Parameters
28 Series Backpack Integrated Machine (RS485 Model) | ||||
Category | Minimum Value | Typical Value | Maximum Value | Unit |
Input Voltage | 20 | 24 | 30 | V |
Drive Current | 0.7/1 | A | ||
Protection Functions | Overcurrent, overvoltage, undervoltage, phase loss, large position deviation (closed-loop) | |||
Signal Terminal Definition and Wiring Instructions
Terminal Number | Function | Description | IO Signal Wiring Diagram |
1 | VDC | Power Input Positive Terminal (DC20～30V) |  |
2 | GND | Power Input Negative Terminal | |
3 | R485- | RS485 Communication Port | |
4 | R485+ | ||
5 | DI1 | Input Signal Port 1 | |
6 | DI2 | Input Signal Port 2 | |
7 | DI3 | Input Signal Port 3 | |
8 | DICOM | Input Signal Common Terminal (24V) | |
9 | DO1+ | Output Signal Port | |
10 | DO1- |
Fault Handling
Fault Phenomenon | Solution |
Red light steady on or red light flashes once every 3 seconds | Driver overcurrent alarm, check if motor wires have issues, or unplug motor wires and power only the driver; if fault persists, internal driver fault requires factory repair. |
Red light flashes continuously 2 times | Driver overvoltage alarm, check if input voltage is within power supply range. |
Red light flashes continuously 3 times | Driver undervoltage alarm, check if input voltage is within power supply range. |
Red light flashes continuously 4 times | Motor phase loss alarm, driver motor wire may be disconnected, requires factory repair. |
Red light flashes continuously 7 times | Large position deviation alarm, check if speed is too high or motor is stalled. |
Red light flashes continuously 8 times | EEPROM storage failure, try initializing parameters and then restart. If the alarm persists, return to factory for repair. |
Red light flashes continuously 9 times | Homing timeout alarm, check if PA_055 is 16515. |
Red light flashes continuously 10 times | Homing error alarm, check homing parameters and sensor switch, reset alarm and re-home. |
Motor is enabled normally but cannot trigger operation | Use control word to trigger emergency stop, then check if internal position parameters are set incorrectly, and then try to trigger position operation again. |
Motor is whining | 1. Set PA_006 to 0, then restart the driver; 2. Reduce PA_009 and PA_010; 3. Reduce PA_011 and PA_013. |
Motor swings back and forth | Is the load inertia too large? Increase deceleration time. |
Main application fields
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Model
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Shenzhen Lichuan Electric Co., Ltd.
Technical Support
Engineer Peng:+86-135-3098-8140
Engineer Xie:86-159-0755-7836
Engineer Rao:86-180-2520-1553
Engineer Zuo:86-180-2901-2526
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