Missing Steps Poss TB6600 Fault

[john swift]

are you sure its an alarm and not an activity light ???

a link to the advert or photo of the TB6600 driver would help to find the data for your driders

John

[neilricketts]

hi my stepper drivers are these http://www.ebay.co.uk/itm/CNC-Single...EAAOSwnH1WXWIT the two led clearly state pwr/alrm

Cheers Neil

[Doddy]

I've literally these last 10 minutes just come in from the shed from dismantling two of these which were not working correctly (new design, first time I've tried these). From the outset, though they are called TB6600 - they certainly don't have a Toshiba TB6600 on board - instead, some surface mount QFP device with a splodge of heat-sink compound with a best-hope bonding to the heatsink. Also, the alarm alternates for every received clock signal - it's not a fault, but it's a poo design.

I actually came to this site on the offchance someone was selling some drivers, failing that I'm online to get something a bit more respectable.

[neilricketts]

hi doddy i am glad someone else is having the alarm light flickering on and off. I am in the market for some better drivers at a reasonable price. I am considering these if i can find someone who has used them.

http://cgi.ebay.co.uk/ws/eBayISAPI.d...e&talgo=origal

http://www.ebay.co.uk/itm/2625479434...%3AMEBIDX%3AIT

Would you let me know what you decide to go with.

Cheers Neil

[Clive S]

I actually came to this site on the offchance someone was selling some drivers, failing that I'm online to get something a bit more respectable.

Doddy As you know its hard to beat the AM882 drives

[Doddy]

Doddy As you know its hard to beat the AM882 drives

...or to find them in the UK.

Gnngh!, I've spent the last week and then some crafting two folded steel sleds (one power, one control) that fit in the mount-frame of a Starmill... now anything larger than the original drivers isn't going to fit and I'm back to the start, making a tray to take all the gubbins.

Time to go find a cat to kick.

[neilricketts]

Hi does anyone know of good supplier of shielded 2 or 4 core cable.

Cheers Neil

[Clive S]

Hi does anyone know of good supplier of shielded 2 or 4 core cable.

Cheers Neil

Search for 1mm or 0.75mm cy4 cable like https://quickbit.co.uk/Cable/CY-Cabl...-0-75mm-4-core or https://www.cse-distributors.co.uk/a...Y_4C_0_75.html

edit only connect the screen at one end to a star point

[jagmeetk22]

This is issue is due to low speed optocoupler .

Replace Direction and Pulse(CLock) optocoupler(p817) with 6n137 optocoupler.

This will solve problem and not loss steps.