7I96 Encoder Spindle tuning

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2 years 8 months ago #294243 by PCW
Replied by PCW on topic 7I96 Encoder Spindle tuning
First the connections must be correct:

7I96 TB2  pin 1 --> SPINX1A pin 1  (GND)
7I96 TB2 pin 3 --> SPINX1A pin 3  (PWM)
7I96 TB2 pin 5 --> SPINX1A pin 5  (DIR)
7I96 TB2 pin 6 --> SPINX1A pin 6 (5V)

7I96 TB3 pin 14  --> SPINX1A pin 4 (/ENA) SSR0+
7I96 TB3 pin 13 --> 5V GND (SSR0-)
 

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2 years 8 months ago #294258 by kbec
Replied by kbec on topic 7I96 Encoder Spindle tuning
I did wire it like you described. At 100% I’m getting about 2.5v and 80rpm, at 50% I have 0v and about 10 rpms

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2 years 8 months ago #294263 by PCW
Replied by PCW on topic 7I96 Encoder Spindle tuning
What is the voltage between SP+ and SP- ?
 (measure at 0 % 50 % and 100%)

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2 years 8 months ago #294318 by kbec
Replied by kbec on topic 7I96 Encoder Spindle tuning
At 0(off) I have .058 disconnected and 2.62 connected to the motor control board

At 50% I have -.183 disconnected and 2.73 connected to the motor control board

At 100% I have -.210 disconnected and 2.51 connected to the motor control board

That is with my negative on sp- and positive lead on sp+

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2 years 8 months ago #294321 by PCW
Replied by PCW on topic 7I96 Encoder Spindle tuning
So what that means is that the motor control board cannot supply
the few mA of current that the SPINx1A requires.

Does the motor control card have any specifications for the speed control input?

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2 years 8 months ago #294404 by kbec
Replied by kbec on topic 7I96 Encoder Spindle tuning
I came across another similar post where he used another controller board. I have ordered one and hopefully that will fix the issue.

Thanks for your help

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2 years 8 months ago #294410 by PCW
Replied by PCW on topic 7I96 Encoder Spindle tuning
I could also possibly be done with an external (and well isolated) 10V supply

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2 years 7 months ago #294930 by kbec
Replied by kbec on topic 7I96 Encoder Spindle tuning
How would I connect that? The manual for the board says it is supplied with a 5K potentiometer.

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2 years 7 months ago #294937 by PCW
Replied by PCW on topic 7I96 Encoder Spindle tuning
Can you post a link to the manual here?
 

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2 years 7 months ago #294974 by kbec
Replied by kbec on topic 7I96 Encoder Spindle tuning
I have the 240-DS if it matters, The motor runs fine when attached to the potentiometer that came with it. 

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