Home Index 7i96s can't detect Signal
- abdulasis12
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24 Jan 2024 04:38 #291485
by abdulasis12
Home Index 7i96s can't detect Signal was created by abdulasis12
Hi
I use 7i96s for Lathe
I use encoder for X-Axis feedback control.
A,B phase encoder run good and can feedback control.
then I change in ini file change to HOME_USE_INDEX = YES , for use home index with Z-phase encoder.
I click home Z use mechanic home switch its work good.
I click home X use index home when x axis touch home switch will back off but it's not stop it's keep walking.(before change to index home i use home switch good work.).
I try use osihoscope check Z phase , scope can detect 1 pulse every 1turn motor.
I try open Hal scope in linuxcnc open signal hm2_7i96s.0.encoder.00.index-enable I run x axis and observed but no any change.
please help what i'm setup wrong in hal or ini file please.
Thank you
Asis,
I use 7i96s for Lathe
I use encoder for X-Axis feedback control.
A,B phase encoder run good and can feedback control.
then I change in ini file change to HOME_USE_INDEX = YES , for use home index with Z-phase encoder.
I click home Z use mechanic home switch its work good.
I click home X use index home when x axis touch home switch will back off but it's not stop it's keep walking.(before change to index home i use home switch good work.).
I try use osihoscope check Z phase , scope can detect 1 pulse every 1turn motor.
I try open Hal scope in linuxcnc open signal hm2_7i96s.0.encoder.00.index-enable I run x axis and observed but no any change.
please help what i'm setup wrong in hal or ini file please.
Thank you
Asis,
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24 Jan 2024 05:16 - 24 Jan 2024 05:17 #291487
by PCW
Replied by PCW on topic Home Index 7i96s can't detect Signal
In general its not likely that you can detect the index signal with halscope
since it only samples the hal pin at 1 KHz and the index pulse will tend to
be much shorter.
The way to test index is to (with halcmd -kf):
halcmd: sets x-index-enable
Then monitor x-index-enable (with halmeter or halshow)
to see if it gets cleared at the Index position of the encoder
when the encoder shaft is rotated slowly.
since it only samples the hal pin at 1 KHz and the index pulse will tend to
be much shorter.
The way to test index is to (with halcmd -kf):
halcmd: sets x-index-enable
Then monitor x-index-enable (with halmeter or halshow)
to see if it gets cleared at the Index position of the encoder
when the encoder shaft is rotated slowly.
Last edit: 24 Jan 2024 05:17 by PCW.
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30 Jan 2024 08:39 - 30 Jan 2024 08:39 #291963
by abdulasis12
Replied by abdulasis12 on topic Home Index 7i96s can't detect Signal
Hi MR.PCW
I Try open X-index-enable on hallshow
all setting in .hall and .ini same in first file
seem x-index-enable change status from red to yellow after touch home switch and back off in second.
But Servo X axis not stop just go away.
Please see in clip.
youtube.com/shorts/DYzESCKYgpI?feature=share
I Try open X-index-enable on hallshow
all setting in .hall and .ini same in first file
seem x-index-enable change status from red to yellow after touch home switch and back off in second.
But Servo X axis not stop just go away.
Please see in clip.
youtube.com/shorts/DYzESCKYgpI?feature=share
Last edit: 30 Jan 2024 08:39 by abdulasis12.
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- tommylight
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30 Jan 2024 10:02 #291966
by tommylight
Replied by tommylight on topic Home Index 7i96s can't detect Signal
Servo tuning is wayyyy off, both axis are moving more than 1mm without correction from the controller, try adding more P.
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30 Jan 2024 14:51 #291984
by PCW
Replied by PCW on topic Home Index 7i96s can't detect Signal
Is the index signal single ended or differential?
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30 Jan 2024 18:17 #291999
by abdulasis12
Thank you MR. Tommylight.
Replied by abdulasis12 on topic Home Index 7i96s can't detect Signal
Tomorow I will try itServo tuning is wayyyy off, both axis are moving more than 1mm without correction from the controller, try adding more P.
Thank you MR. Tommylight.
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30 Jan 2024 18:18 #292000
by abdulasis12
Differential encoder signal. (from 26ls31 IC)
Replied by abdulasis12 on topic Home Index 7i96s can't detect Signal
Hi MR.PCWIs the index signal single ended or differential?
Differential encoder signal. (from 26ls31 IC)
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30 Jan 2024 18:45 #292001
by PCW
Replied by PCW on topic Home Index 7i96s can't detect Signal
Can you temporarily disconnect the encoder, jumper index for single ended,(W1 left)
and see if grounding the index+ input changes the state of the index pin in hal?
Also can you read the firmware pinout?
mesaflash --device 7i96s --addr [ip-address] --readhmid > pinout.txt
and post pinout.txt here
[ip-address] is 192.168.1.121 or 10.10.10.10 depending on 7I96S address jumpering
and see if grounding the index+ input changes the state of the index pin in hal?
Also can you read the firmware pinout?
mesaflash --device 7i96s --addr [ip-address] --readhmid > pinout.txt
and post pinout.txt here
[ip-address] is 192.168.1.121 or 10.10.10.10 depending on 7I96S address jumpering
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- abdulasis12
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31 Jan 2024 03:54 #292041
by abdulasis12
You mean for I try to change signal of index encoder from differential to singlw end right ?
I check in manual , explanded about W1,W2,W3
W1 = A
W2 = B
W3 = Index
please make sure for me again change W1 or W3 to left ?
Thank you
Asis,
Replied by abdulasis12 on topic Home Index 7i96s can't detect Signal
Hi MR.PCWCan you temporarily disconnect the encoder, jumper index for single ended,(W1 left)
and see if grounding the index+ input changes the state of the index pin in hal?
Also can you read the firmware pinout?
mesaflash --device 7i96s --addr [ip-address] --readhmid > pinout.txt
and post pinout.txt here
[ip-address] is 192.168.1.121 or 10.10.10.10 depending on 7I96S address jumpering
You mean for I try to change signal of index encoder from differential to singlw end right ?
I check in manual , explanded about W1,W2,W3
W1 = A
W2 = B
W3 = Index
please make sure for me again change W1 or W3 to left ?
Thank you
Asis,
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31 Jan 2024 04:07 - 31 Jan 2024 04:09 #292042
by abdulasis12
Replied by abdulasis12 on topic Home Index 7i96s can't detect Signal
this pinout.txt
and I try
- W1 to left and try home with index result : same old
- W3 to left can't stop Jog and I think W3 is A encoder now I chnage back to Right position
and I try
- W1 to left and try home with index result : same old
- W3 to left can't stop Jog and I think W3 is A encoder now I chnage back to Right position
Last edit: 31 Jan 2024 04:09 by abdulasis12.
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