The DDSM115 is a direct-drive servo motor made for easy and solid motion control. Its direct-drive mechanism provides a fast response without delays, making it ideal for projects needing precise control.
It has multiple operating modes, including current loop, position loop, and velocity loop. The design gives the motor smooth torque, steady speed, and accurate positioning without requiring an external reducer. Its speed can go as low as 1 RPM and can provide torque up to 2Nm.
The DDSM115 has a hall sensor to detect and measure the proximity, position, and speed of the motor. Only a one-channel RS485 bus is required to control multiple direct-drive servo motors at the same time. Its IP54 protection rating guards against dust and water, which lets the motor work nicely in conditions that can get a bit messy!
If you’re looking for a driver board to get this motor running, click here to find one in our shop
We also have a DDSM210 and DDSM400 in the shop.
Other motors and the robot are NOT included
Features
- Low noise
- High precision and zero-backlash
- Fast response, direct drive without delay
- Integrated motor and driver, compact structure and high integration
- Support RS485 communication mode
- Motor feedback information such as position, speed, current, error code, etc. can be obtained through communication.
- Hall position detection, over-current protection, etc.
- Support electric brake
- No drive mechanical friction, drive efficiency close to 100%
Specifications
| No-load Speed | 200±10rpm |
| No-load Current | ≦0.25A |
| Rated Speed | 115rpm |
| Rated Torque | 0.96Nm |
| Degree of protection | IP54 |
| Locked-rotor Torque | 2.0Nm |
| Locked-rotor Current | ≦2.7A |
| Rated Voltage | 18V DC (5S LiPo) |
| Torque Constant | 0.75Nm/A |
| Speed Constant | 11.1rpm/V |
| Operating Temperature | -20~45℃ |
| Total Weight | 765±15g |
| Encoder Resolution | 4096 |
| Rated Current | 1.25±0.05A |
| Noise Level | ≦50dB |
| Mechanical Time Constant | 30ms |
| Rotor Inertia | 1.67kg-m² |
| Phase Resistive Elements | 2.15Ω |
| Phase Inductance | 3.6mH |
| Number of Pole Pairs | 10 |
Resources
- Product Wiki
Package Contents
- 1x DDSM115
- 1x ZH1.5 4-pin Signal Cable
- 1x XH2.54 2-pin Power cable



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