I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

I am finally getting smooth motion no lost steps etc etc. Everything works except.

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

In my opinion, you should contact Vince at?storm2313@.... he is very knowledgeable and always ready to help you. He is fanatical about unwanted noise in your system. I think he sells a USB cable that is shielded.

On Fri, Mar 27, 2020, 12:32 spencer@... <spencer@...> wrote:

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

anyone know of a signal conditioned for usb that does work?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

I am finally getting smooth motion no lost steps etc etc. Everything works except.

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

In my opinion, you should contact Vince at?storm2313@.... he is very knowledgeable and always ready to help you. He is fanatical about unwanted noise in your system. I think he sells a USB cable that is shielded.

On Fri, Mar 27, 2020, 12:32 spencer@... <spencer@...> wrote:

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

anyone know of a signal conditioned for usb that does work?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

I am finally getting smooth motion no lost steps etc etc. Everything works except.

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

You are trying to fix a wrong schematic with cosmetic changes. You sure have a ground loop somewhere. Check your shields, they should be connected one side only with heavy short wire to good ground. Preferably star connection.

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

anyone know of a signal conditioned for usb that does work?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

I am finally getting smooth motion no lost steps etc etc. Everything works except.

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

Electrical noise can be a bear.? Steve Spallings mentioned PC grounds and system or motor grounds.? I have his PMDX-126 and unfortunately the PC I'm using internally somewhere has the DC ground connected to the system frame which is the third earth prong on the power cord which then connects to the motor frames through the machine metal. The CUI encoders on the DC servos serve to further muck things up where their DC ground is connected to the frame.? Which is of course connected to the 3 prong and so DC ground earth ground are connected in several places. ?Shielding has no rhyme or reason here but it's one place where a single ended connection for a shield is a bit more logical.

?

My EE book on electrical noise states that the signal grounds should never be connected to the DC power grounds or frame. ?The whole point of shielding is that it isolates the two.

?

For your system also look at magnetic coupling.? The way a transformer works is a changing magnetic field introduces current in windings that are also in the magnetic field.? So the spindle motor current flowing through the wires can generate a field picked up encoder or limit switch wires. ?Short of what is called mu metal shielding the only solution to electromagnetic interference is distance.? Route them far apart.

?

Electrostatic shielding is different.? Twisted pairs help to null out electric field noise. Shielding can be grounded at one end or both of the frame (third prong) earth.? The point is you only want the noise current flowing back through the shield into the frame.? Not through your signal wires which includes the DC 0V wires.? People tend to forget what goes out a signal wire is still a signal as it comes back through what is commonly called the ground or common wire.? (Some manufacturers have called the +5V to +24V 'common' for limit switches)

?

John Dammeyer.

?

From: [email protected] [mailto:[email protected]] On Behalf Of Todor Boshnakov
Sent: March-27-20 2:39 PM
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

You are trying to fix a wrong schematic with cosmetic changes. You sure have a ground loop somewhere. Check your shields, they should be connected one side only with heavy short wire to good ground. Preferably star connection.

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

From: "John Dammeyer" <johnd@...>

To: [email protected]

Sent: 3/27/2020 3:58:44 PM

Subject: Re: [MachCNC] strange stopping

?

Electrical noise can be a bear.? Steve Spallings mentioned PC grounds and system or motor grounds.? I have his PMDX-126 and unfortunately the PC I'm using internally somewhere has the DC ground connected to the system frame which is the third earth prong on the power cord which then connects to the motor frames through the machine metal. The CUI encoders on the DC servos serve to further muck things up where their DC ground is connected to the frame.? Which is of course connected to the 3 prong and so DC ground earth ground are connected in several places.? Shielding has no rhyme or reason here but it's one place where a single ended connection for a shield is a bit more logical.

?

My EE book on electrical noise states that the signal grounds should never be connected to the DC power grounds or frame.? The whole point of shielding is that it isolates the two.

?

For your system also look at magnetic coupling.? The way a transformer works is a changing magnetic field introduces current in windings that are also in the magnetic field.? So the spindle motor current flowing through the wires can generate a field picked up encoder or limit switch wires.? Short of what is called mu metal shielding the only solution to electromagnetic interference is distance.? Route them far apart.

?

Electrostatic shielding is different.? Twisted pairs help to null out electric field noise. Shielding can be grounded at one end or both of the frame (third prong) earth.? The point is you only want the noise current flowing back through the shield into the frame.? Not through your signal wires which includes the DC 0V wires.? People tend to forget what goes out a signal wire is still a signal as it comes back through what is commonly called the ground or common wire.? (Some manufacturers have called the +5V to +24V 'common' for limit switches)

?

John Dammeyer.

?

From: [email protected] [mailto:[email protected]] On Behalf Of Todor Boshnakov
Sent: March-27-20 2:39 PM
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

You are trying to fix a wrong schematic with cosmetic changes. You sure have a ground loop somewhere. Check your shields, they should be connected one side only with heavy short wire to good ground. Preferably star connection.

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

A quick addition to John’s good comments:

Make sure that all AC line cords are plugged into one wall outlet through a power strip.

Using two different wall outlets can add a lot of unrelated noise.

?

I am a firm believer in tightly twisted pair power and signal wires.

It cancels out both electrostatic and inductive radiated and picked up signals.

Bertho

?

?

From: [email protected] <[email protected]> On Behalf Of John Dammeyer
Sent: Friday, March 27, 2020 18:59
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

Electrical noise can be a bear.? Steve Spallings mentioned PC grounds and system or motor grounds.? I have his PMDX-126 and unfortunately the PC I'm using internally somewhere has the DC ground connected to the system frame which is the third earth prong on the power cord which then connects to the motor frames through the machine metal. The CUI encoders on the DC servos serve to further muck things up where their DC ground is connected to the frame.? Which is of course connected to the 3 prong and so DC ground earth ground are connected in several places.? Shielding has no rhyme or reason here but it's one place where a single ended connection for a shield is a bit more logical.

?

My EE book on electrical noise states that the signal grounds should never be connected to the DC power grounds or frame.? The whole point of shielding is that it isolates the two.

?

For your system also look at magnetic coupling.? The way a transformer works is a changing magnetic field introduces current in windings that are also in the magnetic field.? So the spindle motor current flowing through the wires can generate a field picked up encoder or limit switch wires.? Short of what is called mu metal shielding the only solution to electromagnetic interference is distance.? Route them far apart.

?

Electrostatic shielding is different.? Twisted pairs help to null out electric field noise. Shielding can be grounded at one end or both of the frame (third prong) earth.? The point is you only want the noise current flowing back through the shield into the frame.? Not through your signal wires which includes the DC 0V wires.? People tend to forget what goes out a signal wire is still a signal as it comes back through what is commonly called the ground or common wire.? (Some manufacturers have called the +5V to +24V 'common' for limit switches)

?

John Dammeyer.

?

From: [email protected] [mailto:[email protected]] On Behalf Of Todor Boshnakov
Sent: March-27-20 2:39 PM
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

You are trying to fix a wrong schematic with cosmetic changes. You sure have a ground loop somewhere. Check your shields, they should be connected one side only with heavy short wire to good ground. Preferably star connection.

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

I had a lot of noise problems with my Mach 4 and a Pokeys controller using the USB interface.? My wiring was carefully done.

I removed the USB cable and switched to ethernet and I have not had a problem since that time.

Bertho

?

From: [email protected] <[email protected]> On Behalf Of spencer@...
Sent: Friday, March 27, 2020 12:32
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

Spencer

?

First, your comment about the A stopping at the same value each? time. I seem to remember from a few years back that there was a bit of a discussion about the A having a move limit in Mach 3. ?Don’t remember the detials

?

Second , a noise issue seldom, if? ever, fails at exactly the same point every time. I kind of? doubt that this is your problem.

?

On the second ?point though I had issues when I switched PCs a few years back. ?Chased ?noise ?issues for a few weeks until I discovered my PC LPPT port was a 3.5vdc port vs a 5 vdc one, very common on later PC’s. (I didn’t discover that but was pointed to check that by the group) .That voltage would allow “ANY” noise in. ?A later BOB that would handle the 3.5vdc signals solved that issue.

?

Don

?

.?

?

---

From: [email protected] [mailto:[email protected]] On Behalf Of spencer@...
Sent: Friday, March 27, 2020 5:45 PM
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

one more thing. i never had this problem until i switched to the Pokeys from the parallel port. so i am pretty sure that the noise is getting into the Pokeys through the USB cable.?

?

so should i put a braid over the USB cable or try to find a better shielded version and connect the ground only at the BOB ground which is common to everything else.?

?

my computer does not have a three wire power supply. it has "desktop" wall wart supply. i have no idea where the PC grounds are connected or if the chassis is connected to anything.

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "John Dammeyer" <johnd@...>

To: [email protected]

Sent: 3/27/2020 3:58:44 PM

Subject: Re: [MachCNC] strange stopping

?

Electrical noise can be a bear.? Steve Spallings mentioned PC grounds and system or motor grounds.? I have his PMDX-126 and unfortunately the PC I'm using internally somewhere has the DC ground connected to the system frame which is the third earth prong on the power cord which then connects to the motor frames through the machine metal. The CUI encoders on the DC servos serve to further muck things up where their DC ground is connected to the frame.? Which is of course connected to the 3 prong and so DC ground earth ground are connected in several places.? Shielding has no rhyme or reason here but it's one place where a single ended connection for a shield is a bit more logical.

?

My EE book on electrical noise states that the signal grounds should never be connected to the DC power grounds or frame.? The whole point of shielding is that it isolates the two.

?

For your system also look at magnetic coupling.? The way a transformer works is a changing magnetic field introduces current in windings that are also in the magnetic field.? So the spindle motor current flowing through the wires can generate a field picked up encoder or limit switch wires.? Short of what is called mu metal shielding the only solution to electromagnetic interference is distance.? Route them far apart.

?

Electrostatic shielding is different.? Twisted pairs help to null out electric field noise. Shielding can be grounded at one end or both of the frame (third prong) earth.? The point is you only want the noise current flowing back through the shield into the frame.? Not through your signal wires which includes the DC 0V wires.? People tend to forget what goes out a signal wire is still a signal as it comes back through what is commonly called the ground or common wire.? (Some manufacturers have called the +5V to +24V 'common' for limit switches)

?

John Dammeyer.

?

From: [email protected] [mailto:[email protected]] On Behalf Of Todor Boshnakov
Sent: March-27-20 2:39 PM
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

You are trying to fix a wrong schematic with cosmetic changes. You sure have a ground loop somewhere. Check your shields, they should be connected one side only with heavy short wire to good ground. Preferably star connection.

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

i think it is all plugged into one outlet. will double check. not sure how i can twist wires at this point stuff is pretty mush in place but will look at the possibility.

?

?

------ Original Message ------

From: "Bertho" <boman33@...>

To: [email protected]

Sent: 3/27/2020 4:46:36 PM

Subject: Re: [MachCNC] strange stopping

?

A quick addition to John’s good comments:

Make sure that all AC line cords are plugged into one wall outlet through a power strip.

Using two different wall outlets can add a lot of unrelated noise.

?

I am a firm believer in tightly twisted pair power and signal wires.

It cancels out both electrostatic and inductive radiated and picked up signals.

Bertho

?

?

From: [email protected] <[email protected]> On Behalf Of John Dammeyer
Sent: Friday, March 27, 2020 18:59
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

Electrical noise can be a bear.? Steve Spallings mentioned PC grounds and system or motor grounds.? I have his PMDX-126 and unfortunately the PC I'm using internally somewhere has the DC ground connected to the system frame which is the third earth prong on the power cord which then connects to the motor frames through the machine metal. The CUI encoders on the DC servos serve to further muck things up where their DC ground is connected to the frame.? Which is of course connected to the 3 prong and so DC ground earth ground are connected in several places.? Shielding has no rhyme or reason here but it's one place where a single ended connection for a shield is a bit more logical.

?

My EE book on electrical noise states that the signal grounds should never be connected to the DC power grounds or frame.? The whole point of shielding is that it isolates the two.

?

For your system also look at magnetic coupling.? The way a transformer works is a changing magnetic field introduces current in windings that are also in the magnetic field.? So the spindle motor current flowing through the wires can generate a field picked up encoder or limit switch wires.? Short of what is called mu metal shielding the only solution to electromagnetic interference is distance.? Route them far apart.

?

Electrostatic shielding is different.? Twisted pairs help to null out electric field noise. Shielding can be grounded at one end or both of the frame (third prong) earth.? The point is you only want the noise current flowing back through the shield into the frame.? Not through your signal wires which includes the DC 0V wires.? People tend to forget what goes out a signal wire is still a signal as it comes back through what is commonly called the ground or common wire.? (Some manufacturers have called the +5V to +24V 'common' for limit switches)

?

John Dammeyer.

?

From: [email protected] [mailto:[email protected]] On Behalf Of Todor Boshnakov
Sent: March-27-20 2:39 PM
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

You are trying to fix a wrong schematic with cosmetic changes. You sure have a ground loop somewhere. Check your shields, they should be connected one side only with heavy short wire to good ground. Preferably star connection.

?

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

I did not mean to twist your existing wires.

I was referring to when making harnesses using individual wires and then twisting the pair.

Bertho

?

From: [email protected] <[email protected]> On Behalf Of spencer@...
Sent: Friday, March 27, 2020 23:43
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

i think it is all plugged into one outlet. will double check. not sure how i can twist wires at this point stuff is pretty mush in place but will look at the possibility.

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "Bertho" <boman33@...>

To: [email protected]

Sent: 3/27/2020 4:46:36 PM

Subject: Re: [MachCNC] strange stopping

?

A quick addition to John’s good comments:

Make sure that all AC line cords are plugged into one wall outlet through a power strip.

Using two different wall outlets can add a lot of unrelated noise.

?

I am a firm believer in tightly twisted pair power and signal wires.

It cancels out both electrostatic and inductive radiated and picked up signals.

Bertho

?

?

From: [email protected] <[email protected]> On Behalf Of John Dammeyer
Sent: Friday, March 27, 2020 18:59
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

Electrical noise can be a bear.? Steve Spallings mentioned PC grounds and system or motor grounds.? I have his PMDX-126 and unfortunately the PC I'm using internally somewhere has the DC ground connected to the system frame which is the third earth prong on the power cord which then connects to the motor frames through the machine metal. The CUI encoders on the DC servos serve to further muck things up where their DC ground is connected to the frame.? Which is of course connected to the 3 prong and so DC ground earth ground are connected in several places.? Shielding has no rhyme or reason here but it's one place where a single ended connection for a shield is a bit more logical.

?

My EE book on electrical noise states that the signal grounds should never be connected to the DC power grounds or frame.? The whole point of shielding is that it isolates the two.

?

For your system also look at magnetic coupling.? The way a transformer works is a changing magnetic field introduces current in windings that are also in the magnetic field.? So the spindle motor current flowing through the wires can generate a field picked up encoder or limit switch wires.? Short of what is called mu metal shielding the only solution to electromagnetic interference is distance.? Route them far apart.

?

Electrostatic shielding is different.? Twisted pairs help to null out electric field noise. Shielding can be grounded at one end or both of the frame (third prong) earth.? The point is you only want the noise current flowing back through the shield into the frame.? Not through your signal wires which includes the DC 0V wires.? People tend to forget what goes out a signal wire is still a signal as it comes back through what is commonly called the ground or common wire.? (Some manufacturers have called the +5V to +24V 'common' for limit switches)

?

John Dammeyer.

?

From: [email protected] [mailto:[email protected]] On Behalf Of Todor Boshnakov
Sent: March-27-20 2:39 PM
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

You are trying to fix a wrong schematic with cosmetic changes. You sure have a ground loop somewhere. Check your shields, they should be connected one side only with heavy short wire to good ground. Preferably star connection.

?

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular.?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

a common grounding/shielding mistake often made... you should only connect your wire shield at one end!

examples: stepper motor being grounded to a metal chassis...ground at the motor, not at the control box/driver block.

Control signals that have a ground wire, (V+ power ground, signal return ground etc, , shield should only be connected at the source of the signal.

ptegler

On 3/28/2020 12:02 AM, Bertho wrote:

I did not mean to twist your existing wires.

I was referring to when making harnesses using individual wires and then twisting the pair.

Bertho

?

From: [email protected] <[email protected]> On Behalf Of spencer@...
Sent: Friday, March 27, 2020 23:43
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

i think it is all plugged into one outlet. will double check. not sure how i can twist wires at this point stuff is pretty mush in place but will look at the possibility.

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "Bertho" <boman33@...>

To: [email protected]

Sent: 3/27/2020 4:46:36 PM

Subject: Re: [MachCNC] strange stopping

?

A quick addition to John’s good comments:

Make sure that all AC line cords are plugged into one wall outlet through a power strip.

Using two different wall outlets can add a lot of unrelated noise.

?

I am a firm believer in tightly twisted pair power and signal wires.

It cancels out both electrostatic and inductive radiated and picked up signals.

Bertho

?

?

From: [email protected] <[email protected]> On Behalf Of John Dammeyer
Sent: Friday, March 27, 2020 18:59
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

Electrical noise can be a bear.? Steve Spallings mentioned PC grounds and system or motor grounds.? I have his PMDX-126 and unfortunately the PC I'm using internally somewhere has the DC ground connected to the system frame which is the third earth prong on the power cord which then connects to the motor frames through the machine metal The CUI encoders on the DC servos serve to further muck things up where their DC ground is connected to the frame.? Which is of course connected to the 3 prong and so DC ground earth ground are connected in several places.? Shielding has no rhyme or reason here but it's one place where a single ended connection for a shield is a bit more logical.

?

My EE book on electrical noise states that the signal grounds should never be connected to the DC power grounds or frame.? The whole point of shielding is that it isolates the two.

?

For your system also look at magnetic coupling.? The way a transformer works is a changing magnetic field introduces current in windings that are also in the magnetic field.? So the spindle motor current flowing through the wires can generate a field picked up encoder or limit switch wires.? Short of what is called mu metal shielding the only solution to electromagnetic interference is distance.? Route them far apart.

?

Electrostatic shielding is different.? Twisted pairs help to null out electric field noise. Shielding can be grounded at one end or both of the frame (third prong) earth.? The point is you only want the noise current flowing back through the shield into the frame.? Not through your signal wires which includes the DC 0V wires.? People tend to forget what goes out a signal wire is still a signal as it comes back through what is commonly called the ground or common wire.? (Some manufacturers have called the +5V to +24V 'common' for limit switches)

?

John Dammeyer.

?

From: [email protected] [mailto:[email protected]] On Behalf Of Todor Boshnakov
Sent: March-27-20 2:39 PM
To: [email protected]
Subject: Re: [MachCNC] strange stopping

?

You are trying to fix a wrong schematic with cosmetic changes. You sure have a ground loop somewhere. Check your shields, they should be connected one side only with heavy short wire to good ground. Preferably star connection

?

On 27 Mar 2020, at 18:32, "spencer@..." <spencer@...> wrote:

?

i forgot to mention that, i have ferrites everywhere. that is one of the first things i do.? i have them on the signal leads to each stepper and even on the usb cable to the pokeys although the mfg suggested it would not do anything. i tried a usb signal conditioner thing but it did not work, meaning that most things plugged into it stopped working.

?

anyone know of a signal conditioned for usb that does work?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@...


(425) 791-0309
(707) 223-8212

?

------ Original Message ------

From: "gayhurst56 via Groups.Io" <robin.howie@...>

To: [email protected]

Sent: 3/27/2020 4:03:12 AM

Subject: Re: [MachCNC] strange stopping

?

I would probably try adding ferrite beads to the leads.

On 27 Mar 2020, at 00:20, "spencer@..." <spencer@...> wrote:

I have my router working really well with the following configuration. Solid state tiny computer running win 10. Mach 3 latest version Pokeys USB CNC thing connected to a PDMX.

?

I am finally getting smooth motion no lost steps etc etc. Everything works except.

?

Occasionally Mach3 just stops and is totally unresponsive. Can not reset, jog etc. The diag screen shows all ins and outs off. I have to kill Mach 3 and start again.

?

I am pretty sure that every time it does this, when I restart the 4th axis DRO shows 4099.xxx? the 4th axix is angular?

?

I am running a gcode with a subroutine that repeats over and over with a tool change to allow inserting a new part for machining. i am also using the subroutine to make it possible to count parts.?

?

when this failure happens is always close to the spindle motor going on or off. it is a three phase servo run by a high quality US inverter. Forgot the name right now but it is a good inverter not Chinese no name stuff.

?

I am pretty sure the spindle motor is causing noise that kills the Pokeys. I have proper grounding and shielding.?

?

I changed the inverter carrier frequency from the default of 5Khz to 2khz and have not had the problem yet but it some times does not happen for a considerable time.?

?

any ideas? does the 4099 signify some overflow?? does it sound like it is inverter noise? might the lower carrier frequency be the fix?

?

?

?

Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...
Spencer@...
Spencer@mcnorg


(425) 791-0309
(707) 223-8212

?

-- 
Paul Tegler
ptegler@...