Time to setup my lathe with 7i76e

Is is this way to do this?

# --- SPINDLE-ENABLE ---
net spindle-enable hm2_7i76e.0.7i76.0.0.output-06

# --- SPINDLE-DIR ---
net spindle-enable hm2_7i76e.0.7i76.0.0.output-06 => net spindle-dir hm2_7i76e.0.7i76.0.0.output-05

I think I have found why M4 is not working.



If I have M3 300 spindle is running OK, in above video I do short VFD Common and reverse and it changes direction.

I think that as it is now the spindle output from 7i76e is ±5V and not 0-5V.





How to change this?

DOH...

Some dinner and a cup of coffee.

Wiring problem at enable to dir relay, the enable was cut as soon as dir relay was enegised.
net spindle-vel-cmd-rpm-abs (abs was missing)

So tomorrow I will turn parts for mounting the new encoder.

So now I have the encoder mounted on spindle motor (easiest to do and belt-drive is 1:1)



I have the spindle encoder connected to 7i85s W1, W2, W4 UP - ENCODER 2

How do I set this up in hal?

Is this all that is needed in HAL and INI

additons to CNC3000.hal

setp hm2_7i76e.0.encoder.02.scale [AXIS_2]ENCODER_SCALE

# ---Encoder feedback signals/setup---

setp hm2_7i76e.0.encoder.02.counter-mode 0
setp hm2_7i76e.0.encoder.02.filter 1
setp hm2_7i76e.0.encoder.02.index-invert 0
setp hm2_7i76e.0.encoder.02.index-mask 0
setp hm2_7i76e.0.encoder.02.index-mask-invert 0

net spindle-revs <= hm2_7i76e.0.encoder.02.position
net spindle-vel-fb-rps <= hm2_7i76e.0.encoder.02.velocity
net spindle-index-enable <=> hm2_7i76e.0.encoder.02.index-enable


Additions to CNC3000.ini

#********************
# Spindle
#********************

MAX_OUTPUT = 3000.0
ENCODER_SCALE = ???? (1250ppr)

I am getting nowhere with this spindle encoder.

num_encoders=4

# ---Encoder feedback signals/setup---

setp hm2_7i76e.0.encoder.03.counter-mode 0
setp hm2_7i76e.0.encoder.03.filter 1
setp hm2_7i76e.0.encoder.03.index-invert 0
setp hm2_7i76e.0.encoder.03.index-mask 0
setp hm2_7i76e.0.encoder.03.index-mask-invert 0
setp hm2_7i76e.0.encoder.03.scale [SPINDLE_9]ENCODER_SCALE

net spindle-revs <= hm2_7i76e.0.encoder.03.position
net spindle-vel-fb-rps <= hm2_7i76e.0.encoder.03.velocity
net spindle-index-enable <=> hm2_7i76e.0.encoder.03.index-enable


ENCODER_SCALE = 5000


Now I get following error on joint 0 (x-axis will not move!)




Any hints on what is wrong here?

The following error has nothing to do with the encoder
Its probably because you have the PID maxerror setting of .0005
it should be commented out or set to 0

Hmmm it works OK with HAL without encoder so there must be a bobo somewhere. Been messing around quite a bit

Here working HAL

tecno wrote: net spindle-revs <= hm2_7i76e.0.encoder.02.position
net spindle-vel-fb-rps <= hm2_7i76e.0.encoder.02.velocity
net spindle-index-enable <=> hm2_7i76e.0.encoder.02.index-enable

Are the "other ends" of these signals set up?

I am curious to see how your encoder works, Vee-belts probably don't run exactly 1:1, I think you might see index creep when threading.

Morning Andy,

" other ends " = I´m lost here

I agree to your suspicion about creeping but this is the closest I can get for the moment. In future when I change the spindle motor to AC servo I will have wide toothed belt and rely on encoder in motor.

These are the latest *untested* HAL and INI, can you see any errors here?



Happy Holidays
Bengt