질문 하시기 전에 검색을 통해 원하는 질문/답변 내용을 찾아봐주세요.

Overload Error on MX-28

조회 수 3483 추천 수 0 2012.03.21 22:48:14
Aneoshun *.157.18.251

Hi,

When I use a MX-28, I get sometimes an overload error.

In order to remove the alarm, I reset the Torque limit value like it's explained here http://www.robotis.com/xe/?mid=qna_en&search_keyword=error&search_target=title&document_srl=77594.( register 34 and 35 torque limit = 03 FF).

I can see the MX-28 moving again during a very very short moment, but just after that it loses its torque again (Torque limit =0 and the servo is in overload error) (even if I remove the load on the servo).

It seems that the torque is correctly reset during a short moment, but not the alarm flag. This could explain why the Torque limit is immediatly and automaticly reset to 0.


I succesfully tested  my function which reset the Torque limit register on AX12+ and AX18 without any probleme. 

The firmware version of the MX-28 is 0x1E (version 30).


Should I do something special when an overload error occurs on MX-28 in order to let it move again?


Regards.


NaN

2012.03.22 01:28:16
*.137.20.72

If it is an over-temperature alarm, the motor and electronics will have to cool off a bit before the alarm will no longer occur (or increase the alarm temperature - which is not recommended).  To speed up the cooling, you could try some compressed air/coolant as was required by competitors here.  CO2 spray cans used for dusting electronics could work (spray them upside down and you get the liquid which is much, much colder and may cause damage to human and bot alike).

Aneoshun

2012.03.22 05:22:53
*.178.11.47

Thank you for your reply,


The error is not an over-temperature alarm. I checked with robotPlus that the error is really an overload one. The error arrives sometimes juste after the start up of my robot, so I can be certain that it's not an over-temperature alarm.

Aneoshun

2012.03.26 18:13:05
*.157.18.251

No idea?

It's really a boring problem. I can't correctly use my MX-28 because of that!

[레벨:30]ROBOTIS

2012.03.27 14:33:27
*.112.9.210

Aneoshun,

 

First of all, are you sure it's an overload shutdown? When the symptoms you mention above happen, can you send the status packer?

The instruction packet doesn't really matter. It may be an overheat shutdown like NaN mentioned.

 

Secondly, if you repeatedly set the goal position before it arrives, the overload shutdown can kick in. Try setting the goal position AFTER it arrives.

 

ROBOTIS

Aneoshun

2012.04.02 16:36:55
*.157.18.251

Thank you for your reply,


Yes, I'm sure it's an Overload Shutdown because I can see it explicitly with RobotPlus.

It could be normal to have this error knowing the current load on my servo and this is not a problem.

But I don't understand why I can't remove this error without un-plug and re-plug the power cable.(This remove immediatly the error which should not happen if it's an overHeat shutdown?)

As I mention above, I re-wrote the torque limit value, but the alarm was not removed.

I did the same with Ax-12 and Ax-18 and it worked.

[레벨:30]ROBOTIS

2012.04.06 10:59:25
*.112.9.210

We apologize for the inconvenience caused by this.

We are seeing this as a firmware bug, and will have this fixed on our next update.

 

Even if you change the torque limit, the overload shutdown function does not close/cancel.

 

ROBOTIS

[레벨:30]ROBOTIS

2012.05.03 11:37:52
*.112.9.210

Hi Aneoshun,

 

The firmware bug has been fixed with our update.

Can you please check if this solves your problem?

 

ROBOTIS

List of Articles
번호 제목 글쓴이 날짜 조회 수
공지 [NOTICE] FAQ [1] ROBOTIS 2014-05-26 1513

questions about read the Present Position in every 20 milisecond [1]

  • ll
  • 2012-04-05
  • 조회 수 2275

USB2Dynamixel and other serial devices [1]

  • Saurya
  • 2012-04-04
  • 조회 수 7199

Present Voltage error on MX-28 (Firm.30) [2]

  • Yannis
  • 2012-04-03
  • 조회 수 2397

What do the serial function in embedded c mean [1]

  • yang1988
  • 2012-03-29
  • 조회 수 1953

RoboPlus Motion not working with CM-5 [3]

  • aprendiendo
  • 2012-03-25
  • 조회 수 2256

Dynamixel ex106+ initial baudrate [1]

  • Yaroslav
  • 2012-03-22
  • 조회 수 2247

Bioloid Premium - Zigbee Questions [3]

  • BenW
  • 2012-03-22
  • 조회 수 3945

Overload Error on MX-28 [7]

  • Aneoshun
  • 2012-03-21
  • 조회 수 3483

Zig2Serial and ZigBee [1]

  • Yulia
  • 2012-03-20
  • 조회 수 2855

Setting goal position on MX-28 [2]

  • prounds
  • 2012-03-15
  • 조회 수 2496

How can I download my own .hex into the CM-700 via Robotplus Te... [7]

  • hou zhenyu
  • 2012-03-14
  • 조회 수 2717

Communication distance [1]

  • David
  • 2012-03-14
  • 조회 수 2024

Darwin Constant Improper Shutdown [1]

  • Ahmad
  • 2012-03-14
  • 조회 수 2933

How To Correct Alarm Error [1]

  • Sri
  • 2012-03-11
  • 조회 수 2710

Compliance / Punch on MX-28 [1]

  • prounds
  • 2012-03-11
  • 조회 수 2576

MX 106 and MX 64 estimated release date [1]

  • yaro
  • 2012-03-01
  • 조회 수 2546

Dynamixel Wizard [1]

  • Alexey
  • 2012-02-27
  • 조회 수 2979

CM-510 motion names got junk characters on upgrade to Total Articles ... file [3]

  • Deepak
  • 2012-02-26
  • 조회 수 4438

problem starting humanoid [2]

  • ALexey
  • 2012-02-24
  • 조회 수 1993

Roboplus Motion Offset [4]

  • wiweet
  • 2012-02-24
  • 조회 수 2451

XE Login