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Frequently Asked Questions

Genesis direct drive motors are compatible with most industry-standard servo drives. We have verified compatibility with at least one model from each of the following manufacturers.

  • B&R
  • Beckhoff
  • Bosch Rexroth
  • Elmo
  • KEBA
  • Rockwell Automation
  • Schneider Electric
  • STXi Motion
  • Yaskawa

Drive compatibility is generally limited by the encoder communication protocols supported. Please contact the drive manufacturer for compatibility details.

LDD Series housed motors can be configured with one of the four encoder communication protocols listed below.
  • EnDat 2.2
  • BiSS-C®
  • One cable technology, with HIPERFACE DSL®
For more information see, LDD specifications.

LDD direct drive motors offer various sizes and winding options for a range of high-torque applications. Motors can be configured with one of four encoder options. A holding brake can be integrated into the assembly if needed. Temperature sensors are included for temperature sensitive applications.
For more information see, LDD specifications .

The holding torque of the brake is 18 Nm. The brake engages as soon as power is cutoff.

Dimensions and weights vary for each LDD frame size. For specific values see, LDD specifications.

The LDD Series includes one outer-diameter size with four length options.
For more information, go the LDD Series product page.

Cogging torque is typically less than 5% of continuous torque.

Standard LDD Series motors have two winding options that are designed for 400-480 VAC and 200-230VAC. Other voltages can be used, but motor performance will be impacted. If you have voltage concerns, contact us for more information.

LDD Series motors are rated at 30,000 hours lifetime. This is significantly higher than a typical gearbox which is rated at 20,000 hours lifetime.

LDD Series housings are finished with a black anodized coating.

The thermal constraints of an LDD Series motor varies significantly depending on, the application environment,  housing dimensions, and material. All LDD motors are tested with a representative heat sink to determine motor specifications. For more information, see LDD specifications.

LDD housed motors are BLAC, PMSM type motors. In general, servo drives designed for this type of motor can be used. Be aware that certain servo drives may require digital nameplates that are proprietary to the drive manufacturer.
Verify that the drive selected is compatible with one of the four encoder communication protocols offered in the LDD Series.
For drive commissioning, the following motor information is usually required.
  • Pole or pole-pair dount
  • Rated current
  • Line-to-line resistance
  • Line-to-line inductance
The following encoder parameters may be needed.
  • Encoder communication protocol
  • Resolution

For more information of motor specifications, go to LDD specifications.

LDD Series motors offer higher torque-to-length with a 50% reduction in length which decreases machine footprint. They are slightly larger in diameter (180mm vs. 110-130mm) and slightly heavier (10-15kg vs. 8-12kg) than some servo motor and gearbox combinations.

Frameless motor kits consists of an unhoused rotor and stator. They can also  include digital hall sensors for communication.
Integrating a frameless motor offers design flexibility to component integrators such as:
  • reducing the overall size of the joint;
  • offering a large through-hole for cable routing;
  • and removing the need for additional mechanical components that introduce resonances and instability to a system. For example, flexible couplings.

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