Page 2 of 2
Re: Fuse T6.3AL 250V
Posted: Mon 24 Aug , 2009 13:48 pm
by Denford Admin
Try another fuse, but first remove the 3 orange connectors to the motors (marked X Y and Z with 4 wires in each)
If it still blows, then the bottom board will need repairing (look closely at the big chips mounted onto the black heatsink to the right of the fuse)
If not, then you will need to check the stepper motors wiring with an ohm-meter for a short circuit in the wires or motors themselves.
Re: Fuse T6.3AL 250V
Posted: Mon 24 Aug , 2009 13:51 pm
by Martin
Check the transistors for damage but it sounds like you need a replacement card.
Re: Fuse T6.3AL 250V
Posted: Tue 25 Aug , 2009 0:50 am
by ar2noo
Denford Admin wrote:Try another fuse, but first remove the 3 orange connectors to the motors (marked X Y and Z with 4 wires in each)
I removed the 3 orange connectors and it still blew.
If it still blows, then the bottom board will need repairing (look closely at the big chips mounted onto the black heatsink to the right of the fuse)
How do I repair this chip? can I find it in a local shop?
If not, then you will need to check the stepper motors wiring with an ohm-meter for a short circuit in the wires or motors themselves.
I have no experience using ohm-meter.. 
Re: Fuse T6.3AL 250V
Posted: Tue 25 Aug , 2009 0:56 am
by ar2noo
Martin wrote:Check the transistors for damage but it sounds like you need a replacement card.
Is there any other way that I can check this transistor? I have no idea how.. Sorry I'm not into electronic.
Re: Fuse T6.3AL 250V
Posted: Tue 25 Aug , 2009 1:36 am
by ar2noo
Ok let say I buy a new card which is the bottom board, Is it comes with the big chips mounted onto the black heatsink? anyone knows where to find the new card?
Re: Fuse T6.3AL 250V
Posted: Tue 25 Aug , 2009 10:16 am
by bradders
Can you see / feel any damage on the surfaces of the transistors on the heat sink ?
Re: Fuse T6.3AL 250V
Posted: Tue 25 Aug , 2009 13:46 pm
by Martin
The Baldor bottom card comes with the transistors mounted on. You may be best contacting youre Denford agent in order to perchase a replacement or have it repaired.
Re: Fuse T6.3AL 250V
Posted: Wed 26 Aug , 2009 1:33 am
by ar2noo
No i dont see any damages on the transistors, I would like to order one soon. Have to find out the dealer first. Thank you everybody.. I really appreciate your help..
