Error,
- tommylight
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15 Dec 2016 16:08 #84188
by tommylight
Replied by tommylight on topic LinuxCNC error on Enshu VMC530
Ok, does linuxcnc start? Does the machine move. Anything?
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15 Dec 2016 16:24 #84191
by tjamscad
Linux CNC loads, estop reset and machine on. As soon as it loads it gives the real time error. I can turn it on and home all it moves fast and gives a following error.
Replied by tjamscad on topic LinuxCNC error on Enshu VMC530
Ok, does linuxcnc start? Does the machine move. Anything?
Linux CNC loads, estop reset and machine on. As soon as it loads it gives the real time error. I can turn it on and home all it moves fast and gives a following error.
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15 Dec 2016 16:38 #84196
by tommylight
Replied by tommylight on topic LinuxCNC error on Enshu VMC530
Ok that is nice progress, now you are getting real time errors so you have to use a larger base thread in the ini file.
Start linuxcnc and move all the axis by hand one by one while checking the dro on screen, the values should change with movement. If it does, check the acceleration and velocity values, and check if you are using inch or metric .
Start linuxcnc and move all the axis by hand one by one while checking the dro on screen, the values should change with movement. If it does, check the acceleration and velocity values, and check if you are using inch or metric .
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16 Dec 2016 20:39 #84288
by tjamscad
Replied by tjamscad on topic LinuxCNC error on Enshu VMC530
I have was put under the impression that the PPMC stuff doesn't use the base thread. It is commented out in my machine.
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17 Dec 2016 08:15 #84310
by tommylight
Replied by tommylight on topic LinuxCNC error on Enshu VMC530
I do not recal seeing a base thread now that you mention it. So check the value of servo thread, it should be 1000000.
If you are getting real time errors with the correct servo thread, the PC is acting up or there is something causing delays.
If you are getting real time errors with the correct servo thread, the PC is acting up or there is something causing delays.
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22 Dec 2016 14:20 - 22 Dec 2016 14:51 #84554
by tjamscad
Last edit: 22 Dec 2016 14:51 by tjamscad.
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- cncnoob1979
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22 Dec 2016 15:27 #84557
by cncnoob1979
Replied by cncnoob1979 on topic Error,
Have you checked the power source for the relays?
If you have a faulty power source the voltage drop maybe enough to cause your relays to cycle as you described. Using a voltmeter could quickly rule it out.
Check for shorts ect from the source of power to the next relay then work your way downstream of the power flow.
If you have a faulty power source the voltage drop maybe enough to cause your relays to cycle as you described. Using a voltmeter could quickly rule it out.
Check for shorts ect from the source of power to the next relay then work your way downstream of the power flow.
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22 Dec 2016 15:43 #84559
by tommylight
Replied by tommylight on topic Error,
Also check for AC voltage on the DC side, that would indicate a shorted diode. Check also the power drop on the DC side when that occurs, capacitors might be dry.
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23 Dec 2016 14:59 #84616
by cncnoob1979
Replied by cncnoob1979 on topic Error,
Try to identify if you have a ground that switches to power/enable your relay.
Meaning - instead of a power source going to your relay to power it, another relay controls the ground [-neg/0V] to activate the relay. Power already present at that specific relay waiting on a [-neg/0V] source to activate.
In my set-up on the the interact I had a relay that switched [fluttered] like you stated and it was controlled by a [-neg/0V] switching relay, I found a bad [-neg/0V] wire. It rang out fine, but could not handle any significant load.
Is this all your relays doing this? Or is it a section that controls a specific area?
Can you try to disable/disconnect relays in the series [assuming the problematic ones are in a series] to identify if one is failing causing a cascading effect. I know electrical gremlins are difficult to track down.
If you want give me a call and I can try to give you hand in troubleshooting.
Meaning - instead of a power source going to your relay to power it, another relay controls the ground [-neg/0V] to activate the relay. Power already present at that specific relay waiting on a [-neg/0V] source to activate.
In my set-up on the the interact I had a relay that switched [fluttered] like you stated and it was controlled by a [-neg/0V] switching relay, I found a bad [-neg/0V] wire. It rang out fine, but could not handle any significant load.
Is this all your relays doing this? Or is it a section that controls a specific area?
Can you try to disable/disconnect relays in the series [assuming the problematic ones are in a series] to identify if one is failing causing a cascading effect. I know electrical gremlins are difficult to track down.
If you want give me a call and I can try to give you hand in troubleshooting.
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