Mesa 5i24-25 stucked

More
18 Dec 2022 06:11 - 18 Dec 2022 06:14 #259798 by yrsiddhapura
Replied by yrsiddhapura on topic Mesa 5i24-25 stucked
ok it's showing all pins but i am still not able to get 2khz pwm afters settings pwm_frequancy to 2000 it's still got about. But according to mine volt meter it change voltages 0-5v so it is safe to use it as analogue my drive supports both 10v and 5v analogue input or i should connect/TX5B => pwm in and TX5B => GND , currently i have connected TX5B => pwm in and GND to GND of 7i52s
Last edit: 18 Dec 2022 06:14 by yrsiddhapura.

Please Log in or Create an account to join the conversation.

More
18 Dec 2022 15:58 #259829 by PCW
Replied by PCW on topic Mesa 5i24-25 stucked
I can verify PWM frequency setting on that particular firmware but I suspect a measurement error.

One thing to verify PWM frequency is setting the PWM frequency very low
(say 5 Hz) which you can check with a LED.

You should chose the output that makes your PWM-->Analog converter output
0V before LinuxCNC starts. (and you may need to invert the PWM output so you don't
end up with 5V --> 0V instead of 0 --> 5V)
The following user(s) said Thank You: yrsiddhapura

Please Log in or Create an account to join the conversation.

More
18 Dec 2022 18:30 #259843 by yrsiddhapura
Replied by yrsiddhapura on topic Mesa 5i24-25 stucked
Ok will got try. Well i am not expert with differential signals so i believe to invert pwm signals i have to connect /TX5B to pwm and GND to GND from TX5B to pwm and GND to GND. Is that right.

Please Log in or Create an account to join the conversation.

More
18 Dec 2022 18:59 #259844 by PCW
Replied by PCW on topic Mesa 5i24-25 stucked
If your PWM to analog converter has 0 output with 0 PWM input,
you would use the TX5B output (and /TX5B would be left unconnected).
You would then invert the PWM output pin in the hal file
The following user(s) said Thank You: yrsiddhapura

Please Log in or Create an account to join the conversation.

More
19 Jan 2023 11:07 - 19 Jan 2023 11:08 #262403 by yrsiddhapura
Replied by yrsiddhapura on topic Mesa 5i24-25 stucked
@pcw now getting pwm out put and getting voltage output but only getting 5.2v at 54% duty cycle and  not increasing while increasing duty cycle so yes it's faulty converter ordered industrial one from china will take 2 to 3 week so mean while I want to run machine so is there any way that i could scale 100%rpm at 50% duty cycle mine drive supports both 0-5v as well as 0-10v too ?
Last edit: 19 Jan 2023 11:08 by yrsiddhapura.

Please Log in or Create an account to join the conversation.

More
24 Jan 2023 08:52 - 24 Jan 2023 09:02 #262804 by yrsiddhapura
Replied by yrsiddhapura on topic Mesa 5i24-25 stucked
@pcw

I have setup mesa 7i73 in 4x8 keypad no lcd mode but i am not able to get inputs that only associated with column 0(key 8 pin 11 of P1 connector) i have checked pin 11 is not shorted with any other pin and i also checked from switch to pin 11 (6th pin out side ) and it's show continuity on each switch here i am attaching some pics


 
Attachments:
Last edit: 24 Jan 2023 09:02 by yrsiddhapura.

Please Log in or Create an account to join the conversation.

More
24 Jan 2023 22:01 #262836 by PCW
Replied by PCW on topic Mesa 5i24-25 stucked
Sounds like maybe a wiring error or cable issue
The following user(s) said Thank You: yrsiddhapura

Please Log in or Create an account to join the conversation.

More
25 Jan 2023 03:25 #262852 by yrsiddhapura
Replied by yrsiddhapura on topic Mesa 5i24-25 stucked
@pcw yes it might be but like I said i checked continuity of connection from 7i73 pin 11(back side of 7i73 all cables connected) to switch and it shows continuity and 0.1 resistance which means there is no problem in connections and also checked if any pin is shorted but still it's there is no evidence of it so i swapped board with another 7i73 but still same problem

Please Log in or Create an account to join the conversation.

More
25 Jan 2023 04:59 #262857 by PCW
Replied by PCW on topic Mesa 5i24-25 stucked
Still sounds like a wiring error. I verified that all column 0s work
(P1 pin 11 to 7,8,9,10 =R0C0,R1C0,R2C0,R3C0)
The following user(s) said Thank You: yrsiddhapura

Please Log in or Create an account to join the conversation.

More
25 Jan 2023 13:02 #262878 by yrsiddhapura
Replied by yrsiddhapura on topic Mesa 5i24-25 stucked
will check again

Please Log in or Create an account to join the conversation.

Moderators: PCWjmelson
Time to create page: 0.445 seconds
Powered by Kunena Forum