Mesa Configuration Tool

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2 years 3 months ago #305919 by PCW
Replied by PCW on topic Mesa Configuration Tool
Are you using PWM or the 7I76's analog output?

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2 years 3 months ago #305923 by besriworld
Replied by besriworld on topic Mesa Configuration Tool
I am using a 7i98 and a custom daughter card. I had described the problem in the other thread.
forum.linuxcnc.org/26-turning/52640-old-...-cnc?start=20#304966

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2 years 2 weeks ago #311833 by flyingbrick
Replied by flyingbrick on topic Mesa Configuration Tool
What a great tool!!

I'm kinda stuck with the spindle on my machine too. 7i97. I just want one of the analogue outputs configured to output to the spindle.

Any help or direction appreciated :-)

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2 years 2 weeks ago #311834 by PCW
Replied by PCW on topic Mesa Configuration Tool
Not directly MesaCT related but its best to use analog outs 4 or 5 for spindle control
because these channels have separate enables

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1 year 11 months ago #315441 by tommy
Replied by tommy on topic Mesa Configuration Tool
I have 7i95T + 7i78 as I need 7 axis to control (closed loop) + 1 pwm for spindle.
Which firmware is preferred in this case? Should I use the one that configures joint 5 on 7i95T as a pwm output and then use 2 axis on 7i78?
 

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1 year 11 months ago #315473 by PCW
Replied by PCW on topic Mesa Configuration Tool
Do you need PWM or analog for the spindle?

If analog then using the 7I78s analog output would be best.

Here is 7I95T firmware for a 7I95T +7I78: (10 stepgens, 7 encoders, 3 sserial channels, analog spindle out on 7I78)

 

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1 year 11 months ago #315484 by tommy
Replied by tommy on topic Mesa Configuration Tool
VFD only works with 0-10V so I planned to use PWM signal to voltage converter.
Does 7i78 output 0-10V analog directly?

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1 year 11 months ago #315494 by PCW
Replied by PCW on topic Mesa Configuration Tool
The 7I78 has a PWM to isolated analog output circuit.
It does require an external 10V source. Normally the VFD
supplies this. (its commonly used for the potentiometer)

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1 year 11 months ago #315516 by tommy
Replied by tommy on topic Mesa Configuration Tool
This are terminal connections on VFD: 

 

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So proper solution would be to take +10V Reference output on VFD, connect it to SPINDLE+ on 7i78 and Local voltage speed reference input (A1) on VFD and connect it with SPINDLE- on 7i78?
Any need to connect also 0V COMMON from VFD?
 

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1 year 11 months ago #315523 by tommylight
Replied by tommylight on topic Mesa Configuration Tool
A1 goes to AOUT (or spindle out) on Mesa.
0V common goes to spindle-.

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