X Alarm Issue

[mistajack]

Hi folks. Running into an issue with my setup flashed with GRBL 1.1f and not sure if this can be fix via configuration or if I have a faulty CNC Shield board.



With nothing connected to the end stop pins, I'm getting a triggered alarm only on X. When I do a $5=1 command, I get  a Y & Z alarm so it seems like only the X stop pins are inverted. Is there a way to invert only one axis? Some insight will be greatly appreciated. Cheers!

[Derek the Admin]

Hey. Have you flashed the board. You should not have flashed anything as it already has the version of Grbl that we intend you to have installed.

Let see your settings please. You can type $$ in the command line and press enter to see those settings.

[mistajack]

Jan 13, 2020 22:47:02 GMT Derek the Admin said:

Hey. Have you flashed the board. You should not have flashed anything as it already has the version of Grbl that we intend you to have installed.

Let see your settings please. You can type $$ in the command line and press enter to see those settings.

I picked up a new Jtech laser, followed the "Laser Setup Instructions version 1.03 for JTech Laser Systems" instructions and flashed using the "Carve King Homing and No Homing Laser Spindle.hex" file.

$0 = 10 (Step pulse time, microseconds)

$1 = 25 (Step idle delay, milliseconds)

$2 = 0 (Step pulse invert, mask)

$3 = 0 (Step direction invert, mask)

$4 = 0 (Invert step enable pin, boolean)

$5 = 0 (Invert limit pins, boolean)

$6 = 0 (Invert probe pin, boolean)

$10 = 1 (Status report options, mask)

$11 = 0.010 (Junction deviation, millimeters)

$12 = 0.002 (Arc tolerance, millimeters)

$13 = 0 (Report in inches, boolean)

$20 = 0 (Soft limits enable, boolean)

$21 = 0 (Hard limits enable, boolean)

$22 = 0 (Homing cycle enable, boolean)

$23 = 0 (Homing direction invert, mask)

$24 = 25.000 (Homing locate feed rate, mm/min)

$25 = 500.000 (Homing search seek rate, mm/min)

$26 = 250 (Homing switch debounce delay, milliseconds)

$27 = 1.000 (Homing switch pull-off distance, millimeters)

$30 = 1000 (Maximum spindle speed, RPM)

$31 = 0 (Minimum spindle speed, RPM)

$32 = 0 (Laser-mode enable, boolean)

$100 = 250.000 (X-axis travel resolution, step/mm)

$101 = 250.000 (Y-axis travel resolution, step/mm)

$102 = 250.000 (Z-axis travel resolution, step/mm)

$110 = 500.000 (X-axis maximum rate, mm/min)

$111 = 500.000 (Y-axis maximum rate, mm/min)

$112 = 500.000 (Z-axis maximum rate, mm/min)

$120 = 10.000 (X-axis acceleration, mm/sec^2)

$121 = 10.000 (Y-axis acceleration, mm/sec^2)

$122 = 10.000 (Z-axis acceleration, mm/sec^2)

$130 = 200.000 (X-axis maximum travel, millimeters)

$131 = 200.000 (Y-axis maximum travel, millimeters)

$132 = 200.000 (Z-axis maximum travel, millimeters)

ok

[Bruce]

Looks like the default values for the Carve King were written over. The default settings are in the last page of the assembly manual.
Make sure $32=1 to enable laser mode.

[mistajack]

Jan 14, 2020 1:02:53 GMT Bruce said:

Looks like the default values for the Carve King were written over. The default settings are in the last page of the assembly manual.
Make sure $32=1 to enable laser mode.

Got it. Updated the values but still getting an "Alarm X" warning.

>>> $$

$0 = 10 (Step pulse time, microseconds)

$1 = 255 (Step idle delay, milliseconds)

$2 = 0 (Step pulse invert, mask)

$3 = 0 (Step direction invert, mask)

$4 = 0 (Invert step enable pin, boolean)

$5 = 0 (Invert limit pins, boolean)

$6 = 0 (Invert probe pin, boolean)

$10 = 1 (Status report options, mask)

$11 = 0.010 (Junction deviation, millimeters)

$12 = 0.002 (Arc tolerance, millimeters)

$13 = 0 (Report in inches, boolean)

$20 = 0 (Soft limits enable, boolean)

$21 = 0 (Hard limits enable, boolean)

$22 = 1 (Homing cycle enable, boolean)

$23 = 0 (Homing direction invert, mask)

$24 = 35.000 (Homing locate feed rate, mm/min)

$25 = 1200.000 (Homing search seek rate, mm/min)

$26 = 94 (Homing switch debounce delay, milliseconds)

$27 = 4.000 (Homing switch pull-off distance, millimeters)

$30 = 12000 (Maximum spindle speed, RPM)

$31 = 5000 (Minimum spindle speed, RPM)

$32 = 1 (Laser-mode enable, boolean)

$100 = 200.000 (X-axis travel resolution, step/mm)

$101 = 200.000 (Y-axis travel resolution, step/mm)

$102 = 200.000 (Z-axis travel resolution, step/mm)

$110 = 3500.000 (X-axis maximum rate, mm/min)

$111 = 4400.000 (Y-axis maximum rate, mm/min)

$112 = 3000.000 (Z-axis maximum rate, mm/min)

$120 = 240.000 (X-axis acceleration, mm/sec^2)

$121 = 240.000 (Y-axis acceleration, mm/sec^2)

$122 = 240.000 (Z-axis acceleration, mm/sec^2)

$130 = 432.000 (X-axis maximum travel, millimeters)

$131 = 432.000 (Y-axis maximum travel, millimeters)

$132 = 200.000 (Z-axis maximum travel, millimeters)

ok

[Bruce]

Is there a number with the warning? Are you trying to home the machine when you get the alarm?

[mistajack]

Jan 14, 2020 3:27:29 GMT Bruce said:

Is there a number with the warning? Are you trying to home the machine when you get the alarm?

Yes I'm trying to home but the alarm is triggered right when I connect. Seems like X is stuck in the closed position even though nothing is plugged into the pins.

Looking at the verbose, all I see is

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|WCO:0.000,0.000,0.000>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|Ov:100,100,100>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|WCO:0.000,0.000,0.000>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|Ov:100,100,100>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|Ov:100,100,100>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|Ov:100,100,100>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|WCO:0.000,0.000,0.000>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|Ov:100,100,100>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|WCO:0.000,0.000,0.000>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X|Ov:100,100,100>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[verbose] <Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:X>

[Bruce]

Stick a wire in the +X limit switch inputs (switch close input) and see if it goes away. Looks like you have the $5=1 set but that should affect the Z and Y limit switches the same way.

[mistajack]

Jan 14, 2020 20:04:30 GMT Bruce said:

Stick a wire in the +X limit switch inputs (switch close input) and see if it goes away. Looks like you have the $5=1 set but that should affect the Z and Y limit switches the same way.

On my OP, I mentioned that I tried $5=1 and it gave me alarms for Z & Y so it looks like the issue is with the X pins. I did connect a switch to X and manually tripped the switch hoping something would register. Nothing happened so I'm certain it's a bad board. I've ordered a replacement CNC shield. They're relatively cheap (around $12) so I'm gonna give that a go and cross my fingers that solves it. Thanks!

[Derek the Admin]

Are you under warranty? If so we could replace it. Email us at [e-mail] if you are and we could send the board. It might also be on the Arduino side.

[mistajack]

Jan 15, 2020 2:18:39 GMT Derek the Admin said:

Are you under warranty? If so we could replace it. Email us at [e-mail] if you are and we could send the board. It might also be on the Arduino side.

I purchased this over a year ago so I'm no longer under warranty. I purchased another CNC shield to test and unfortunately, it's giving me the same issue so I think it's on the Arduino side. Going to order an Arduino UNO board and hope for the best. On another note,  I also tried connecting the Jtech signal to +Z and tried to do the focus test. The laser is not turning on.

[mistajack]

Update. Replaced the Arduino Uno board and that solved the alarm issue.

[Derek the Admin]

Great news. Thank you for the update!