Help with a Custom Setup!

[daniel.odonnell]

My group had a project of setting up a 3-axis controller. Previous units built used TMCM-310. We have upgraded motors to 3.15 amp Stepping Motors and now am told we will be using 3 of TMCM-035 and BB-035 and 1 of TMCM-302 and BB-302 to get the required amperage to each motor.

We have previously used Celetron power supplies but I have not been able to find their website to confirm what is available.

Can you recommend a supplier for a Power Supply? Do I need multiple outputs for the BB-302 and the BB-035s or can I use a single 15V 3.7A Power Supply?

[Andrew]

I am not sure why you favour TMCM302.
It might be a more neat solution with TMCM301.

Namely:
1x TMCM301
1x BB301
3x TMCM035

The BB301 provides both the interface to TMCM035 and an interface to a computer, if needed.

As for makers of power supplies.
In a laboratory almost any power supply does suffice.
But when you serialize your set, you need something serial.
I have not found any suitable enough manufacturer on the market.
So I made my own. See here:
http://www.trinamic.com/ttdg/viewtopic.php?t=394

I can recommend my power supplies. They are produced as single pieces. Can also be done serially.
No certification. But it can be done for greater orders.

I am not aware of other manufacturers of power supplies who would make analogue design, rather than PWM with its inherent noise.

My supplies can be completely custom, with as many leads as required.

Custom and analogue is the combination, which is even harder to come by.

BB302 takes motor voltage and converts into voltage for logics (5V). BB035 does the same. There seems to be no galvanic isolation on board.
Because a single source is used for both power circuits and logics anyway, there seems not a big advantage in separating them galvanically. Especially that you connect the two modules electrically.

Otherwise galvanic isolation of motors between them, and from logics would be of benefit for the sake of reliability. Failure or noise from one item would be isolated from the rest.

If maker of the boards (Trinamic) confirms that they do have optical or other galvanic isolation of powers circuits from logics, then separate power lines for logics, and each separate motor might be justified.

There still would be no need for separate power supply for each board and motor. A custom power supply can have several galvanically isolated outputs. Physical separation into separate transformers (instead of a single analogue power transformer), and filtering of each output line, would be an option in order to further decrease mutual interference over power lines. But still it would be one power supply - not several.

To be merged