Integrated Stepper Motors
Liberty MDrive®
Liberty MDrive® LMD23 NEMA 23 CANopen External Linear Actuator with M12 Connectors
Compact integrated motor with CANopen CiA301 and CiA402. Feedback options include open loop, or closed loop with an incremental or multi-turn absolute encoder with hMTechnology
- Motor size: NEMA 23 (57 mm)
- Input voltage: +12 to +60 VDC
General Specifications
| Specification | Value |
|---|---|
| Control Type | CANopen |
| Communications Interface | CAN Bus 2.0B |
| Communications Features | CANopen DS301, DSP402 |
| NEMA Size | 23 (57 mm) |
| Torque Range | 103 … 242 oz-in (73 … 171 N-cm) |
| Heatsink Operating Temperature | 85°C |
| Motor Operating Temperature | 100°C |
| IP Rating | IP65 |
Electrical Specifications
| Specification | Value |
|---|---|
| Input Voltage | +12 … +60 VDC |
| Power Supply Current Requirement | 3.5 A |
| Aux-Logic Supply Voltage | 12 … 24 VDC |
| Aux-Logic Supply Current | 194 mA max |
I/O Specifications
| Specification | Value |
|---|---|
| Signal Inputs: +5 to +24 VDC | |
| Voltage Range | 5 … 24 VDC |
| Input Current @ +5 VDC | 8.7 mA |
| Input Current @ +24 VDC | 14.6 mA |
| Input Frequency | 5 kHz |
| Isolation | Galvanic |
| Protection Class | III |
| Analog Input | |
| Voltage Mode | 0 … 10 VDC |
| Current Loop Mode | 0 … 20 mA |
| Resolution | 12 bits |
| Isolation | None |
| Power Outputs | |
| Number of Open or Closed Loop | 2 |
| Number of Absolute Encoder | 1 |
| Voltage Rating | -24 … +24 VDC |
| Current Rating | -100 … +100 mA |
| Protection | Over temp, short circuit, transient, over voltage, inductive clamp |
| Isolation | Galvanic |
| Signal Outputs: 1 – 5.5 mA | |
| Voltage Open-Collector | 60 VDC |
| Voltage Open-Emitter | 7 VDC |
| Current Open-Collector | 5.5 mA |
| Current Open-Emitter | 5.5 mA |
| Isolation | Galvanic |
Motion Specifications
| Specification | Value |
|---|---|
| Open Loop (No encoder or hMT/Encoder Functions Off) | |
| Microstep Resolution (# of Settings) | 20 |
| Microstep Range | 200 … 51200 steps/rev |
| Counter Type | 32-bit Position |
| Counter Edge Rate | 5 MHz (max.) |
| Velocity Range | ±2560000 steps/sec, ±3000 RPM |
| Velocity Resolution | 0.5961 steps/sec |
| Accel/Decel Range | 1.5 X 10⁹ steps/sec² |
| Accel/Decel Resolution | 90.9 steps/sec² |
| Closed Loop (hMT/Encoder Functions On) | |
| Incremental Encoder Type | Internal, magnetic |
| Incremental Encoder Resolution | 1000 lines / 4000 edges |
| Multi-turn Absolute Encoder Type | Internal, magnetic |
| Multi-turn Absolute Encoder Data Retention (Internal Power) | 30 days |
| Multi-turn Absolute Encoder Data Retention (Battery Pack) | 5 years |
| Common Scaling (Encoder Counts : Full Step) | 20:1 |
| Common Counter Type | 32-bit Encoder |
| Common Encoder Functions (hMTechnology OFF) | Position maintenance, Find index, Stall detect |
| Common Encoder Functions (hMTechnology ON) | Anti-stall, Variable current control, Torque mode |
Software Specifications
| Specification | Value |
|---|---|
| CANopen – CiA Standards Compliance | |
| Application Layer | DS301: CANopen application layer and communication profile |
| Profile | DSP402: CANopen device profile for drives and motion control |
| Connectivity | DR303-1: Cabling and connector pin assignment |
| Commisioning | DS305: CANopen layer setting services (LSS) and protocols |
| CANopen – General Features | |
| Setup Parameters | Storable to NVM |
| Transmit PDOs | 4 Dynamically Mappable |
| Receive PDOs | 4 Dynamically Mappable |
| Manufacturer Specific Objects | I/O Configuration, Run/Hold Current |
| Modes of Operation | Profile Position, Homing Mode, Profile Velocity, Profile Torque¹, Cyclic Synchronous Position |
| Input Functions | General purpose, home, limit |
| Output Functions | General purpose, braking |
Motor Performance
Screw G
Screw A
Screw B
Screw D
Screw Key
| Screw G | 0.3750 in (9.525 mm) per revolution |
| Screw A | 0.20 in (5.08 mm) per revolution |
| Screw B | 0.167 in (4.233 mm) per revolution |
| Screw D | 0.0833 in (2.116 mm) per revolution |
Do not exceed the nut’s rated thrust: 60 lbs (27 kg) for general‑purpose nuts and 25 lbs (11 kg) for anti‑backlash nuts.
Motor Specifications
| Attribute | Value |
|---|---|
| Maximum Screw Misalignment | ±1° |
| General Purpose Nut | |
| Maximum Thrust | 60 lbs (27 kg) |
| Maximum Repeatability | 0.005 in (-0.127 mm) |
| Anti-Backlash Nut | |
| Maximum Thrust | 25 lbs (11 kg) |
| Maximum Repeatability | 0.0005 in (0.0127 mm) |
| Motor | |
| Rotor Inertia | 0.0025 oz-in-sec² (0.18 kg-cm²) |
| Weight (Motor+Driver) | 24.8 oz (703 g) |
Leadscrew Characteristics
Screw Travel Specifications
| Travel Per Revolution | |
| Screw G | 9.525 mm (0.375 in) |
| Screw A | 5.08 mm (0.2 in) |
| Screw B | 4.233 mm (0.167 in) |
| Screw D | 2.116 mm (0.0833 in) |
| Travel Per Full Step | |
| Screw G | 0.0476 mm (0.001875 in) |
| Screw A | 0.0254 mm (0.001 in) |
| Screw B | 0.0212 mm (0.000835 in) |
| Screw D | 0.0106 mm (0.0004165 in) |
Dimensional Information
| A | 3.0–24.0 in / 77.5–610.0 mm; 0.1 in / 0.25 mm increments |
| B | 0.5 in (12.7 mm) |
| C | 0.375 in (9.525 mm) |
Nut Specifications
General Purpose Nut
For applications not requiring backlash and wear compensation. Round flange shape.
Max Thrust: 25 lbs (11 kg)
For applications not requiring backlash and wear compensation. Round flange shape.
Max Thrust: 60 lbs (25 kg)
Anti-Backlash Nut
For applications requiring backlash-free operation for high accuracy and low drag torque. Triangle flange shape.
Factory-preloaded: The anti-backlash nut ships pre-loaded from the factory. Should you need to remove it please read the assembly instructions.
Max Thrust: 5 lbs (2 kg)
For applications requiring backlash-free operation for high accuracy and low drag torque. Triangle flange shape.
Factory-preloaded: The anti-backlash nut ships pre-loaded from the factory. Should you need to remove it please read the assembly instructions.
Max Thrust: 25 lbs (11 kg)
End Treatment Options
| None | — |
| Smooth | Ø 0.2362 in ± 0.001 (Ø 6 mm ± 0.003) |
| Threaded (Metric) | M6 x 1.0 thread to within 0.76 mm (0.03 in) of shoulder |
| Threaded (UNC) | 1/4‑20 UNC‑2A thread to within 0.05 in (1.3 mm) of shoulder |
Need a Custom Leadscrew Solution?
SEM offers numerous customization options for your lead screw. Contact us to learn more!
Leadscrew Maintenance Statement
While under optimal conditions lubrication interval is expected to occur approximately once every 1000 hours of service. Actual life will depend on application and environment. Based upon this, frequent inspections must be performed and a maintenance interval determined based on actual conditions.
Recommended lubricant: Dupont Krytox GPL 206
Mechanical Dimensions
- Filter by Part Number
- ICP0531
- MD-CS650-000
- MD-CS630-000
- MD-CS620-000
- PLG-M12TP
- MD-CS660-000
- MD-CC502-000
| Part Number | Description | ||
|---|---|---|---|
 |
ICP0531 |
The ICP0531 Encoder Back-up Battery Pack will provide back-up power for the Liberty* MDrive Absolute Encoder circuitry, retaining and updating the position data for a period of up to five (5) years. The battery pack requires three (3) Energizer L91 1.5V AA Lithium batteries. |
|
 |
MD-CS650-000 |
The MD-CS650-000 is a 5-position, A-coded M12 female with flying leads cable used to interface the CAN bus to Liberty* MDrive products. Pre-wired shielded cables with straight M12 connector end for interfacing a CAN network. 10′ (3 m) M12 to flying leads cable. |
|
 |
MD-CS630-000 |
The MD-CS630-000 is a 12-position, A-coded M12 male with flying leads cable used to interface I/O signals to the Liberty* MDrive product. Pre-wired shielded cables with straight M12 connector end for interfacing logic and I/O. 10′ (3 m) M12 to flying leads cable. |
|
 |
MD-CS620-000 |
The MD-CS620-000 is a 4-position, B-coded M12 female with flying leads cable used to interface DC power to Liberty* MDrive products. Pre-wired shielded cables with straight M12 connector end for interfacing DC power. 10′ (3 m) M12 to flying leads cable. |
|
|
|
PLG-M12TP |
Terminator Plug for CANopen IP65 products. Use with MD-CS660-000 |
|
 |
MD-CS660-000 |
Connect multiple CAN units together in sequence with this Y cable. A termination plug, such as PLG-M12TP, is required at end of run. |
|
 |
MD-CC502-000 |
USB to CANopen pluggable converters set/program communication parameters in 32- or 64-bit. Includes converter, cable& terminating resistor plug. |
|
Talk to an Application Engineer
Work directly with our technical team to optimize motion configuration, system integration, and control interfaces.