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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)
- Holding Torque range:
- Input voltage: +12 to +60 VDC
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Specifications
General Specifications
| General | ||
|---|---|---|
| Control type | — | CANopen |
| Communications interface | — | CAN Bus 2.0B |
| Communications features | — | CANopen DS301, DSP402 |
| NEMA size | — | 23 (57 mm) |
| Torque range | oz-in (N-cm) | |
| Operating temperature | [°C] heatsink | 85 |
| [°C] motor | 100 | |
| IP rating | — | IP65 |
California Residents – Click here for Proposition 65 warningElectrical Specifications
| Electrical | ||
|---|---|---|
| Input Voltage | [+VDC] | +12 to +60 |
| Power Supply Current Requirement | [A] | 3.5 |
| Aux-Logic Supply Voltage | [+VDC] | 12 … 24 |
| Aux-Logic Supply Current | [mA] max | 194 |
I/O Specifications
| Programmable I/O | |||
|---|---|---|---|
| Signal Inputs: +5 to +24 VDC | |||
| Voltage Range | [+VDC] | 5 … 24 | |
| Input Current | [mA @ +5 VDC] | 8.7 | |
| Input Current | [mA @ +24 VDC] | 14.6 | |
| Input Frequency | [kHz] | 5 | |
| Isoation | — | Galvanic | |
| Protection class | — | III | |
| Analog Input (Not available on LMD models with absolute encoder) | ||
|---|---|---|
| Voltage Mode | [0 … 5 VDC} | 0 … 5 |
| Voltage Mode | [0 … 10 VDC} | 0 … 10 |
| Current Loop Mode | [mA] | 0 … 20 |
| Resolution | [Bits] | 12 |
| Isolation | — | None |
| Power Outputs | ||
|---|---|---|
| Number | Open or closed loop | 2 |
| Absolute encoder | 1 | |
| Voltage rating | [+VDC] | -24 … +24 |
| Current rating | [mA] | -100 … +100 mA |
| Protection | — | over temp, short circuit, transient, over voltage, inductive clamp |
| Isolation | — | Galvanic |
| Signal Outputs: 1 – 5.5 mA | ||
|---|---|---|
| Voltage open-collector | [+VDC] | 60 |
| Voltage open-emitter | [+VDC] | 7 |
| Current open-collector | [mA] | 5.5 |
| Current open-emitter | [mA] | 5.5 |
| Isolation | — | Galvanic |
Motion Specifications
| Motion | |||
|---|---|---|---|
| Open Loop (No encoder or hMT/Encoder functions off) | |||
| Microstep resolution | # of settings | 20 | |
| Range [steps/rev] | 200 … 51200 | ||
| Counter type | [32-bit] | Position | |
| Counter edge rate | [MHz] (max.) | 5 | |
| Velocity range | [steps/sec | RPM] | ± 2560000 | ± 3000 | |
| Velocity resolution | [steps/sec] | 0.5961 | |
| Accel/Decel range | [steps/sec2] | 1.5 X 109 | |
| Accel/Decel resolution | [steps/sec2] | 90.9 | Closed Loop (hMT/Encoder functions on) |
| Incremental encoder | |||
| Encoder type | Internal, magnetic | ||
| Encoder resolution | [Lines / Edges] | 1000 / 4000 | |
| Multi-turn Absolute encoder | |||
| Encoder type | Internal, magnetic | ||
| Data retention | on internal power | 30 days | |
| with battery pack | 5 years | ||
| Common | |||
| Scaling | [Encoder counts : Full step] | 20:1 | |
| Counter type | [32-bit] | Encoder | |
| Encoder functions | [hMTecnology OFF] | Position maintenance | |
| Find index | |||
| Stall detect | |||
| [hMTechnolgy ON] | Anti-stall | ||
| Variable current control | |||
| Torque mode | |||
Software Specifications
| Software | |||
|---|---|---|---|
| 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 | ||
| 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 & Mechanical
Motor Performance
Screw key
| Screw G | 0.3750′ (9.525 mm) per revolution |
| Screw A | 0.20′ (5.08 mm) per revolution |
| Screw B | 0.167′ (4.233 mm) per revolution |
| Screw D | 0.0833′ (2.116 mm) per revolution |
NOTE: Do not exceed the rated thrust limit of the nut being used:
- General purpose nut: 60 lbs (27 kg)
- Anti-backlash nut: 25 lbs (11 kg)
| Spec | Notes | Value | Maximum screw misalignment | ° | ±1 |
|---|---|---|
| General purpose nut | ||
| Maximum thrust | lbs | 60 |
| kg | 27 | |
| Maximum repeatability | in | 0.005 |
| (mm) | (0.127) | |
| Anti-backlash nut | ||
| Maximum thrust | lbs | 25 |
| kg | 11 | |
| Maximum repeatability | in | 0.0005 |
| mm | 0.0127 | |
| Motor | ||
| Rotor inertia | oz-in-sec2 | 0.0025 |
| kg-cm2 | 0.18 | |
| Weight (without screw) | oz | 24.8 |
| g | 703 | |
Leadscrew Characteristics
Screw travel specifications
| Travel per revolution | ||
|---|---|---|
| Screw | inches | mm |
| Screw G | 0.375 | 9.525 |
| Screw A | 0.20 | 5.08 |
| Screw B | 0.167 | 4.233 |
| Screw D | 0.0833 | 2.116 |
| Travel per full step | ||
| Screw | inches | mm |
| Screw G | 0.001875 | 0.0476 |
| Screw A | 0.001 | 0.0254 |
| Screw B | 0.000835 | 0.0212 |
| Screw D | 0.0004165 | 0.0106 |
Dimensional information
| Dimensional information | |
|---|---|
| in / mm | |
| A | 3.0 to 24.0 / 77.5 to 610.0 in 0.1 / 0.25 increments |
| B | 0.50 / 12.7 |
| C | 0.375 / 9.525 |
Nut specifications
General purpose nut
For applications not requiring backlash and wear compensation. Round flange shape.
Max Thrust: 25 lbs (11 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)
General purpose nut
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: 25 lbs (11 kg)
End treatment options
| End treatments | ||
|---|---|---|
| None | — | |
| Smooth | Ø 0.2362″ ±0.001 Ø 6mm ±0.003 | |
| Threaded | Metric: M6 x 1.0mm thread to within 0.03″/ 0.76 mm of shoulder | UNC: 1/4-20 UNC-2A thread to within 0.05″/ 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/Dimensional Information
Documents & Downloads
3D Models
Click the 3D Configurator link below for corresponding product models.
