View Full Version : ax-12 servo: failed to read?

12-21-2013, 12:35 PM
What would cause all 12 of my ax-12 servos to fail to read when using NUKE? They all have 7.5v of power and are wired into my arbotix chip?

12-21-2013, 01:24 PM
A 9V 5A power supply is the minimum for reliable operation of AX servos. 12V 5A is most common other than 11.1V (3S) LiPo batteries.

12-22-2013, 01:39 AM
The ax-12 manuals online say that it uses 7 to 10V. How do people use lipOS? Is this really the problem?

12-22-2013, 02:02 AM
The pdf is for the old versions of the AX-12 that were intended for 8S NiMH batteries in the CM-5, but Robotis kits always included a 12V 5A SMPS. All new AX-12 are rated 9~12V (http://support.robotis.com/en/techsupport_eng.htm#product/dynamixel/ax_series/dxl_ax_actuator.htm), and all Robotis kits now ship with 3S LiPo batteries and 12V 5A SMPS.

12-22-2013, 11:41 AM
How do people use lipOS?

3S LiPos, which are rated 11.1V and range from 9.6V to 12.6V, work pretty well.