axis go to emergency after 1 hour of work
04 Jun 2015 21:21 #59434
by bkt
axis go to emergency after 1 hour of work was created by bkt
I try to be a week, the source of the problem but can not find. I have a gantry with linuxcnc 2.6 ubuntu 10.04, 2 parallel port, 4 brushless motor drive in step+dir.
Of course I have followed all the precautions for wiring ..... only limit swich not have the resistance of push -pull .... but so far everything is fine ( the machine works from 6 months ). the limit switch is on primary parallel port (on pc motherboard ...intel d255).
All work fine but every 1 hour axis go to emergency stop!!!
I try to connect and disconnect every emergency and chrge-pump switch .... but nothing change.
Normal and standard ubuntu 10.04 crontab action can do this (crontab of linuxcnc installation)?
I have touch screen with evede driver.
Of course I have followed all the precautions for wiring ..... only limit swich not have the resistance of push -pull .... but so far everything is fine ( the machine works from 6 months ). the limit switch is on primary parallel port (on pc motherboard ...intel d255).
All work fine but every 1 hour axis go to emergency stop!!!
I try to connect and disconnect every emergency and chrge-pump switch .... but nothing change.
Normal and standard ubuntu 10.04 crontab action can do this (crontab of linuxcnc installation)?
I have touch screen with evede driver.
![:blink: :blink:](/media/kunena/emoticons/blink.png)
![:blink: :blink:](/media/kunena/emoticons/blink.png)
![:blink: :blink:](/media/kunena/emoticons/blink.png)
Please Log in or Create an account to join the conversation.
05 Jun 2015 20:48 #59475
by andypugh
Replied by andypugh on topic axis go to emergency after 1 hour of work
Is there any error message on screen? Is there any message in dmesg?
Please Log in or Create an account to join the conversation.
05 Jun 2015 21:11 #59478
by bkt
Replied by bkt on topic axis go to emergency after 1 hour of work
no message only my custom hal messages and limit switch messages.... sometime appear limit switch alarm ..... but I think it is false ..... (for 4-5 time no messages.... 1 time limit switch... some time switch 1 sometime 2 sometime 3 ..... but it is no real and I have debounce in every limit switch) ..... today I have see "voltage to ground" alarm in one drive for the first time .... a few hours after the protection fuse inside the drive is break .... i think i have some kind of discharges to ground.
thanks andy-pugh for the interest
I update the post with the cause and the solution of discharges to ground as soon as I will find.
I you have some other ideas, I listen to all the advice.
thanks andy-pugh for the interest
I update the post with the cause and the solution of discharges to ground as soon as I will find.
I you have some other ideas, I listen to all the advice.
Please Log in or Create an account to join the conversation.
- tommylight
-
- Away
- Moderator
-
Less
More
- Posts: 18509
- Thank you received: 6182
07 Jun 2015 06:50 #59551
by tommylight
Replied by tommylight on topic axis go to emergency after 1 hour of work
If it does that in exactly 1 hour, disable your screen saver and power save options, in BIOS too. Also check your groundings, if you are getting random limit switch errors.
If even that does not help, you have power problems, be it power supply or power grid ( in some countries the latter is really bad ).
Regards,
Tom
If even that does not help, you have power problems, be it power supply or power grid ( in some countries the latter is really bad ).
Regards,
Tom
Please Log in or Create an account to join the conversation.
09 Jun 2015 02:56 - 09 Jun 2015 02:57 #59641
by bkt
Is no exactly 1 hour .... save screen an other in bios is disabled ....
my dmesg ... example:
In my dsmeg I do not see things done wrong .... you will see some of them? I only see these errors due to the limit switch, but are dependent error of grounding ....
I add emi and emc filter in L/N power of pc .... in second time I think I add some filter or isolation transformer for the power part .... today not see other solution ....
Replied by bkt on topic axis go to emergency after 1 hour of work
Is no exactly 1 hour .... save screen an other in bios is disabled ....
my dmesg ... example:
limite asse Z = limit switch Z axis (is a custom messages, go out when press limit switch .... but no limit switch is pressed in this case .... I think is only a grounding error) ... rifare gli zeri = make zero axis (an other custom messages ... depend of custom hal file)
In my dsmeg I do not see things done wrong .... you will see some of them? I only see these errors due to the limit switch, but are dependent error of grounding ....
I add emi and emc filter in L/N power of pc .... in second time I think I add some filter or isolation transformer for the power part .... today not see other solution ....
Last edit: 09 Jun 2015 02:57 by bkt.
Please Log in or Create an account to join the conversation.
15 Jun 2015 16:34 #59834
by emcPT
Replied by emcPT on topic axis go to emergency after 1 hour of work
Maybe debounce all the pins that could place the machine in emergency status.
Please Log in or Create an account to join the conversation.
16 Jun 2015 15:31 #59872
by bkt
Replied by bkt on topic axis go to emergency after 1 hour of work
5 day ago I've installed a surge arrester in the input 3F power .... these solve some strange problem .... than I checked all input pin whit hal scope .... I've found 2ms "0" random signal in pressure switch (normally my pressure signal is hight) ... I've debounce it ..... almost all emergencies disappeared ... now we have only 2 emergency event per day.
I believe that I will follow the advice of emcPT and put the debouncing of all signals that cause emergency for a time of 10ms....
N.B.: surge arrester He has taken away all that was not at all logical and without explanation.
Next day update
I believe that I will follow the advice of emcPT and put the debouncing of all signals that cause emergency for a time of 10ms....
N.B.: surge arrester He has taken away all that was not at all logical and without explanation.
Next day update
Please Log in or Create an account to join the conversation.
Time to create page: 0.204 seconds