7i76E SPINDLE OUT Problem

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15 Jun 2022 03:32 #245159 by shanham67
All,

I am in the process of retrofitting a Bridgeport Interact MkII to a linuxcnc+7i76E machine.  I have most everything working but I cannot seem to get anything out of the SPINDLEOUT pin.  The spindle drive is a Control Techniques Mentor II.

SPINDLE+ TB4-PIN3 <---> +10V (TB1-Pin1 on Mentor)
SPINDLEOUT TB4-PIN2 <---> Reference (TB1-Pin3 on Mentor)
SPINDLE- TB4-PIN1 <----> 0V (TB4-Pin40 on Mentor)

With the spindle enabled and using HAL meter I am able to see hm2_7i76e.0.7i76.0.0.spinout vary between 0.0 and 1.0 when I move the spindle override slider but I am never seeing a voltage between PIN2 and PIN1 (SPINDLOUT & SPINDLE-).

What am I missing?

My .ini file is:

[SPINDLE_0] P = 0.0 I = 0.0 D = 0.0 FF0 = 1.0 FF1 = 0.0 FF2 = 0.0 BIAS = 0.0 DEADBAND = 0.0 MAX_OUTPUT = 2000.0 OUTPUT_SCALE = 2000 OUTPUT_MIN_LIMIT = -2000 OUTPUT_MAX_LIMIT = 2000

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15 Jun 2022 03:54 - 15 Jun 2022 03:57 #245160 by PCW
Replied by PCW on topic 7i76E SPINDLE OUT Problem
0 to 1 would be 0 to 5mV if the output scale is 2000

2000 sounds like a reasonable scale value (if the spindle RPM is 2000 at 10V)
but it sounds like the slider setup is not right
Last edit: 15 Jun 2022 03:57 by PCW.

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15 Jun 2022 12:20 #245189 by shanham67
Replied by shanham67 on topic 7i76E SPINDLE OUT Problem
Thanks for looking at this. I have not modified the configs at all. I am using what was generated by pncconf. Any suggestions for what config file parameters to tweak to adjust the output voltage?

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15 Jun 2022 12:25 #245191 by tommylight
Check the hal file, see if this line is there:
net spindle-enable      => hm2_7i76e.0.7i76.0.0.spinena

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15 Jun 2022 14:48 #245201 by shanham67
Replied by shanham67 on topic 7i76E SPINDLE OUT Problem
net spindle-enable => hm2_7i76e.0.7i76.0.0.spinena

...is present.

If I put a jumper from 10V to Ref on the drive and disconnect the SPINDLEOUT connection. I am able to run the spindle at full speed in forward and reverse with Axis.

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15 Jun 2022 14:55 #245202 by shanham67
Replied by shanham67 on topic 7i76E SPINDLE OUT Problem
If I am watching hm2_7i76e.0.7i76.0.0.spinout in 'HAL meter' should I see values ranging from 0.0 to 1.0 as I adjust the slider or values scaled to rpm, e.g. 0.0 to 2000? I am seeing values between 0.0 and 1.0.

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15 Jun 2022 18:48 #245214 by PCW
Replied by PCW on topic 7i76E SPINDLE OUT Problem
I would watch the values of hm2_7i76e.0.7i76.0.0.spinena and hm2_7i76e.0.7i76.0.0.spinout
as you do the test

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15 Jun 2022 22:17 #245233 by shanham67
Replied by shanham67 on topic 7i76E SPINDLE OUT Problem
hm2_7i76e.0.7i76.0.0.spinena = TRUE
hm2_7i76e.0.7i76.0.0.spinout follows the slider all the way to the left/min = 0.0, all the way to the right/max = 1.0

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16 Jun 2022 00:58 #245238 by PCW
Replied by PCW on topic 7i76E SPINDLE OUT Problem

hm2_7i76e.0.7i76.0.0.spinena = TRUE
hm2_7i76e.0.7i76.0.0.spinout follows the slider all the way to the left/min = 0.0, all the way to the right/max = 1.0
 

Right so a spinout value of 1 = 5 mV
You need a spinout value of 2000 to get 10V
 

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16 Jun 2022 01:14 #245239 by tommylight
Upload the hal and ini files here so we can have a look.

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