Help needed to get my 7i76E + 7i85S + 7i73 on my mill going.

# ---Setup spindle at speed signals---

sets spindle-at-speed true

setp hm2_7i76e.0.7i76.0.0.spinout-scalemax 2400
setp hm2_7i76e.0.7i76.0.0.spinout-maxlim 2500

net spindle-enable hm2_7i76e.0.7i76.0.0.spinena
net spindle-vel-cmd-rpm-abs hm2_7i76e.0.7i76.0.0.spinout
net spindle-ccw hm2_7i76e.0.7i76.0.0.spindir

My thoughts

# ---Setup spindle at speed signals via gearcomp3---

sets spindle-at-speed true

setp hm2_7i76e.0.7i76.0.0.spinout-scalemax 2400
setp hm2_7i76e.0.7i76.0.0.spinout-maxlim 2500

net spindle-enable => gearcomp3.0.enable-in
net spinenable => gearcomp3.0.enable-out => hm2_7i76e.0.7i76.0.0.spinena

net spindle-vel-cmd-rpm-abs => gearcomp3.0.speed

net spindlespeed => gearcomp3.0.speedratio => hm2_7i76e.0.7i76.0.0.spinout

net spindle-ccw hm2_7i76e.0.7i76.0.0.spindir

Did you try it yet?

In principle I think it is okay.
But the speedratio I mentioned. There is an issue.
From the speedratio pin you only get out 0.064 0.108 etc depending on which gear is engaged.

Either you keep it that way, and then you need to get the motorspeed as speed/ratio and do that in hal using for example mult2.

Or modify the component to instead of speedratio deliver speed_out calculated as speed/ratio inside the component.

Depends if you need the ratio for something else. If all you need is the motor_speed I would say best to modify the component.

No, will try it tomorrow.

As I see this is, that whatever gear is involved the speed VFD gets max at max speed and drops down to achieve necessary min speed of motor.

Today S2500 revs up the motor to max at 10V (or is it 5V I don´t remember)
and min in Higear + A would be 1500 so 40% less = 6V

This is what it should be on all gears. The comp is there to calculate gear from Sxxxx input only and only give OK if the gear condition is OK. Also I think a short delay should be implemented so no accidents will happen with gearbox.

But where will you calculate the motor rpms for the different gears?

First gear running at max 160 rpm => 2500 rpm on the motor. This give 10V at 160 spindle-rpm when the first gear is engaged.
160 / 0.064 = 2500 motor-rpms.

This calculation need to be done. Either in hal. Or in the component.

Well that is a good question, motor rpm is the same for all gears max down to min always the same.

I think the intention was to merge your version with another version.
The speed_out pin was lost in that process.

Bengt, you need to

1. Add the speed_out pin in the gearcomp3 component
2. In the "if" statement at the end, add at the endwhen the right gear is engaged, andwhen the wrong gear is engaged.

3. halcompile and resinstall component

4. Change the hal file to

andypugh wrote:

Hakan wrote:

But where will you calculate the motor rpms for the different gears?.

The component I wrote did this. But I see that you seem to have abandoned my version about 40 posts ago.

Not abandoned but put on hold as I can not solve the puzzle. I´m a novice at this so it is what it is on my part I put things on hold whenever I can not solve task at hand.

Cheers
Bengt

Hakan wrote:

I think the intention was to merge your version with another version.
The speed_out pin was lost in that process.

Bengt, you need to

1. Add the speed_out pin in the gearcomp3 component

pin   out float speed_out "Motor speed needed";

2. In the "if" statement at the end, add at the end

speed_out = speed/speedratio;

when the right gear is engaged, and

speed_out = 0.0;

when the wrong gear is engaged.

3. halcompile and resinstall component

4. Change the hal file to

net spindlespeed <= gearcomp3.0.speed_out => hm2_7i76e.0.7i76.0.0.spinout

]net spindlespeed <= gearcomp3.0.speed-out => hm2_7i76e.0.7i76.0.0.spinout[

PROGRESS

I think there is something wrong with speedratio that is shown as 0.18 and should be just about 1.0 or a bit less.
Some tweaking but what to change?