Search found 27 matches
- Tue Dec 31, 2019 3:19 pm
- Forum: Actuators
- Topic: Spring stiffness
- Replies: 1
- Views: 3571
Re: Spring stiffness
The stiffness of the actuator depend on the model and hardware revision. X-Series Actuators prior to early 2019 The stiffness is approximately linear and ranges from about 70 Nm/rad to about 170 Nm/rad. Details are provided in the hardware documentation . This applies to hardware revision A9V/B9V/C9...
- Tue Dec 31, 2019 3:10 pm
- Forum: Actuators
- Topic: Actuator certifications
- Replies: 1
- Views: 3497
Re: Actuator certifications
We have certified the X-Series and R-Series actuators for FCC part 15b testing as well as the CE Mark testing for EMC and ESD.
We do not currently have any UL certifications.
We do not currently have any UL certifications.
- Tue Dec 31, 2019 3:06 pm
- Forum: Actuators
- Topic: Temperature rating
- Replies: 1
- Views: 3487
Re: Temperature rating
The actuators can run at ambient temperatures up to 50º C. The actuator will have decreased performance at these temperatures, but it will not overheat or shut down. Above this temperature the electronics may shut down due to temperature limits. The internal temperature of the electronics, along wit...
- Tue Dec 31, 2019 3:05 pm
- Forum: Actuators
- Topic: Housing temperature when running
- Replies: 1
- Views: 3448
Re: Housing temperature when running
The housing of an X-Series or R-Series actuator can theoretically get to about 80 deg-C at near the motor if the module is stalled at full power for several minutes. In our testing here we have seen the housings of an X8 actuator get as high as 65º C.
- Tue Dec 31, 2019 3:04 pm
- Forum: Actuators
- Topic: Actuator command/feedback rate
- Replies: 1
- Views: 3439
Re: Actuator command/feedback rate
You can command up to 1kHz, although for our typical applications we control the actuators at around 100Hz. In general with a controlled wired network, the command and feedback rates are limited by the OS you are running. From macOS / Linux you can get reliable communication up to 1 kHz. On Windows ...
- Tue Dec 31, 2019 3:03 pm
- Forum: Actuators
- Topic: Sensors in actuators
- Replies: 1
- Views: 3519
Re: Sensors in actuators
There are number of sensors in the X-Series and R-Series actuators. This includes feedback related to motion control like output position, velocity, torque, IMU, motor winding temperatures, voltage, current. We also provide a large amount of additional feedback like hardware timestamps, the status L...
- Tue Dec 31, 2019 2:59 pm
- Forum: Actuators
- Topic: Control bandwidth
- Replies: 1
- Views: 3442
Re: Control bandwidth
The actuators have a roll-off frequency of about 5-30Hz, depending on the model of the actuator, the gains that set on the actuator, and the details of the commanded motion. Bode plots of the actuators under different load conditions are available in the hardware documentation: http://docs.hebi.us/h...
- Tue Dec 31, 2019 2:56 pm
- Forum: Actuators
- Topic: Positioning repeatability - Single Actuator
- Replies: 1
- Views: 3439
Re: Positioning repeatability - Single Actuator
The repeatability of a single module is effected by the module’s load, speed, gains, etc. Usually you can repeatably position to around 0.05 degrees. The actuator’s inherent backlash can be a factor when the output axis is unloaded, or when loads change direction. However, backlash has very little e...
- Tue Dec 31, 2019 2:43 pm
- Forum: Actuators
- Topic: LED Blink Codes
- Replies: 1
- Views: 3330
Re: LED Blink Codes
The status LED is used to indicate a variety of states about how it is being controlled and its internal state.
Detailed information is provided at:
http://docs.hebi.us/core_concepts.html#led-status-codes
Detailed information is provided at:
http://docs.hebi.us/core_concepts.html#led-status-codes
- Tue Dec 31, 2019 2:42 pm
- Forum: Actuators
- Topic: Water-resistance
- Replies: 1
- Views: 3414
Re: Water-resistance
The R-Series actuators are rated for IP-67. This means they can run under 1m of water for up 30 min, and are entirely dust-proof. The X-Series actuators are meant primarily for indoor use. The primary dust/water ingress points are the ethernet and power connectors on the modules. Some customers have...