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- program starts before the spindle has reached the rotation speed
program starts before the spindle has reached the rotation speed
- mgm
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25 Jan 2022 13:03 #233059
by mgm
program starts before the spindle has reached the rotation speed was created by mgm
Hello
when I start a program, LCNC does not wait until the milling spindle has reached its expansion number.
What do I have to do to make the program wait until the speed is reached?
when I start a program, LCNC does not wait until the milling spindle has reached its expansion number.
What do I have to do to make the program wait until the speed is reached?
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- tommylight
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25 Jan 2022 13:25 #233063
by tommylight
Replied by tommylight on topic program starts before the spindle has reached the rotation speed
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25 Jan 2022 13:52 #233065
by mgm
Replied by mgm on topic program starts before the spindle has reached the rotation speed
do I need to make an additional connection to the FU?
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25 Jan 2022 14:07 #233067
by tommylight
Replied by tommylight on topic program starts before the spindle has reached the rotation speed
FU = frequency umrichter ??? or similar.
You can also add a pause in gcode after M3 like
G04 P10
that will give it 10 seconds before the machine moves.
You can also add a pause in gcode after M3 like
G04 P10
that will give it 10 seconds before the machine moves.
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25 Jan 2022 14:09 #233068
by mgm
Replied by mgm on topic program starts before the spindle has reached the rotation speed
Yes FU = Frequenz umrichtet
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25 Jan 2022 14:20 - 25 Jan 2022 14:32 #233070
by Aciera
Replied by Aciera on topic program starts before the spindle has reached the rotation speed
To use the "spindle-at-speed" pin you need a feedback signal from the spindle (eg a sensor that sends a pulse once per revolution. If you don't have that then you will need to use the suggested G04 delay.
[edit]
Some VFDs can be configured to output an 'at-speed' signal that can also be brought into hal.
[edit 2]
if you don't have feedback and don't want the g04 in the gcode you could also try a hal delay as suggested in this post:
forum.linuxcnc.org/21-axis/29564-automat...arted?start=20#70340
[edit]
Some VFDs can be configured to output an 'at-speed' signal that can also be brought into hal.
[edit 2]
if you don't have feedback and don't want the g04 in the gcode you could also try a hal delay as suggested in this post:
forum.linuxcnc.org/21-axis/29564-automat...arted?start=20#70340
Last edit: 25 Jan 2022 14:32 by Aciera.
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25 Jan 2022 14:52 - 25 Jan 2022 14:52 #233074
by mgm
Replied by mgm on topic program starts before the spindle has reached the rotation speed
I could make the inverter switch a relay when the requested frequency is reached.
Can I then connect this to a digital input of the 7i76 and connect it to the pin spindle at speed in the hal.
so like this:
sets spindle-at-speed <= hm2_7i76e.0.7i76.0.0.input-28
Can I then connect this to a digital input of the 7i76 and connect it to the pin spindle at speed in the hal.
so like this:
sets spindle-at-speed <= hm2_7i76e.0.7i76.0.0.input-28
Last edit: 25 Jan 2022 14:52 by mgm.
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25 Jan 2022 15:02 #233077
by tommylight
Replied by tommylight on topic program starts before the spindle has reached the rotation speed
Yes, that would be the best way of doing it.
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26 Jan 2022 11:56 - 26 Jan 2022 11:57 #233165
by mgm
Replied by mgm on topic program starts before the spindle has reached the rotation speed
I have now solved my problem as follows:
In my frequency converter (Sourcetronic ST 500 5,5kw) I have assigned a relay output with the signal "reaching the target frequency" (Parameter F2.04 with 4).
This relay output switches a digital input of the mesa card.
In the hal I have now connected the parameter "spindle at speed" with the input of the mesa card.
net spindle-at-speed spindle.0.at-speed <= hm2_7i76e.0.7i76.0.0.input-29
Now the automatic evaluates until the milling spindle has reached its speed.
Thanks for the support to solve my problem!
In my frequency converter (Sourcetronic ST 500 5,5kw) I have assigned a relay output with the signal "reaching the target frequency" (Parameter F2.04 with 4).
This relay output switches a digital input of the mesa card.
In the hal I have now connected the parameter "spindle at speed" with the input of the mesa card.
net spindle-at-speed spindle.0.at-speed <= hm2_7i76e.0.7i76.0.0.input-29
Now the automatic evaluates until the milling spindle has reached its speed.
Thanks for the support to solve my problem!
Last edit: 26 Jan 2022 11:57 by mgm.
The following user(s) said Thank You: tommylight
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