Gentlemen, I need your help.
I'm just tried to start using TinyG
PS=13.5V (temporary).
Blue power indicator LED is lit, but red LED (PWM) is being lit also. First a few second after start its blinks a little and then - permanently light.
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Is it wrong condition? How can I solve it?
CoolTermWin shows string - see the picture please.
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Thank you.
PWM LED always lighted
From the original Synthetos forum (2011–2025)
You are running the most current FW, good.
LED is on because , likely, $p1pof=0.1, the default value.
For deeper discussion, see:
https://dl.dropboxusercontent.com/u/50261731/Spindle%20Test%201.doc
Thank you, but there are CJM Controller installed and have reason to set up, or change value of $p1pof.
Let me know please, same condition, like mine - is it normal mode of LED, CoolTermWin return?
I am not sure what you are asking.
$p1pof = 0.1 means that in the off state, the PWM phase (pulse width) is 10%.
This may, or may not, be the correct value for your PWM controller IF you have one.
$p1pof=0.1 WILL result in the LED being on all the time (actually 10% ON but hard to tell defference between 10% and 100%)
If you are using a PWM spindle, you have to set up for your particular controller, etc. The reference I provide is for one particular (and common) interface.
If you are not using PWM, but want the LED to turn off when spindel not running, set $p1pof to 0.0
"$p1pof = 0.1 means that in the off state, the PWM phase (pulse width) is 10%."
- I understand now. Thank you.
The LED is illustrate indefinite state of pulse width on the moment. I'm just wonder - usualy that LED isn't lighting on the video from other people -that's why I worried.
Will be nice to get table of state for LED's, pin's volumes for any operations...
There is no one location for all LED indicators; a good rainy day project I suppose.
You can start here:
Then wander thru other wiki items that will reveal what the LEDs are telling you.
Enjoy
Of course I learn this page and will do that many times.. Thank you for your help.
By the way. Many times I met attention about polarity of PS for TinyG. is it difficult to install diode and close that sourse of disaster?
It would have to be a substantial diode and perhaps a fuse of some sort - Vmot can be some substantial current Power Supply.
Even with that, Silicon diode might not be adequate.
I have had same thought; it is a challenge for sure.
Pardon me. I use the command $p1pof = 0.0, but it's Lighting anyway. Just interesting... how it's work?!
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Bingo! solve it. already :) I connected to TinyG stepper motor from CDROM as Motor 4 and decreased trimpot to 9 oclock. Stepper moved, LED is off. I'm almost happy.
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In CoolTerm, issue an M5 (spindle off) Gcode command.
Or you may have to issue M3 (Spindle on) then an M5.
The spindle was off.
You have to give tinyG a reason to read the new parameter value for off state.
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