Hello Guest it is January 29, 2020, 09:26:59 AM

Author Topic: tb6600 fried - what now?  (Read 4996 times)

0 Members and 1 Guest are viewing this topic.

Offline kiark

*
  •  12 12
    • View Profile
tb6600 fried - what now?
« on: August 28, 2014, 02:25:19 PM »
Hi!

i fried my chinese Tb6600 5a controller today... even after i reworked the cooling :/ i should not have bought that cheap stuff i guess! or is there a possibility to burn this down using false mach3 settings? wrong velocity or something?

im running a 4 axis (double Y) cnc mill and it would be nice to have a one-in-all controller solution which is solid and doesnt burn down again. im using 4 Nema23 Motors and already have a 36v power source.

Any recommendations would be really nice

kiark

Offline ger21

*
  • *
  •  6,291 6,291
    • View Profile
    • The CNC Woodworker
Re: tb6600 fried - what now?
« Reply #1 on: August 28, 2014, 02:28:26 PM »
Gecko G540.

No, there are no settings in Mach3 that can damage your hardware.

A large portion of the people that can't afford the better hardware, actually end up paying for both the cheaper hardware, and the better hardware when the cheap stuff dies.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline kiark

*
  •  12 12
    • View Profile
Re: tb6600 fried - what now?
« Reply #2 on: August 28, 2014, 02:32:17 PM »
Hi,

i already saw the gecko G540 and it looks really nice! do i only need the G540 or do i need any extra boards that will be attached to the motors? (sorry, kinda newbie regarding this)

thanks for the quick answer and help

Offline ger21

*
  • *
  •  6,291 6,291
    • View Profile
    • The CNC Woodworker
Re: tb6600 fried - what now?
« Reply #3 on: August 28, 2014, 02:35:26 PM »
Just the G540 and power supply.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline kiark

*
  •  12 12
    • View Profile
Re: tb6600 fried - what now?
« Reply #4 on: August 28, 2014, 02:54:21 PM »
so the 36v wouldnt fit?

it says 15 - 50v or am i missing something?

thanks

Offline ger21

*
  • *
  •  6,291 6,291
    • View Profile
    • The CNC Woodworker
Re: tb6600 fried - what now?
« Reply #5 on: August 28, 2014, 03:00:17 PM »
Yes, the 36V supply will be fine.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline kiark

*
  •  12 12
    • View Profile
Re: tb6600 fried - what now?
« Reply #6 on: August 28, 2014, 03:03:12 PM »
ok, just ordered one!

thanks for the help!

Offline kiark

*
  •  12 12
    • View Profile
Re: tb6600 fried - what now?
« Reply #7 on: August 29, 2014, 01:11:44 PM »
Hi

i just found something that makes me wonder a little bit:

im using 4 Nema23 Motors: 57BYGHM201 on http://de.wantmotor.com/ProductsView.asp?id=165&pid=80

the phase inductance is stated as 14mH

following the tutorial to calculate my needed power source i have to 32*(square root of 14) then... makes 134,...v

i guess im missing something again?

the steppers have 1.7A so the resistors i need are 1.7k 5% 1/4W, right? i could only find 1.8k ones... could i use those?

thanks,

kiark

Offline ger21

*
  • *
  •  6,291 6,291
    • View Profile
    • The CNC Woodworker
Re: tb6600 fried - what now?
« Reply #8 on: August 29, 2014, 01:28:35 PM »
Quote
i guess im missing something again?

The fact that your motors aren't any good?

Even at 36V, they should run much faster with the G540 than with the chinese board.

You could gain another 20% speed by going with a 48V power supply, but replacing the motors would probably be a better option.

The 1.8 resistor should be fine.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline kiark

*
  •  12 12
    • View Profile
Re: tb6600 fried - what now?
« Reply #9 on: August 29, 2014, 01:33:48 PM »
oh ok, well... that makes sense then ;)

any suggestions on the motors?