Page 1 of 1
Laser Button on Display unit doing strange things!
Posted: Mon Jun 11, 2012 11:36 pm
by liaoh75
Hi All,
I'm now setting up my machine and doing mirror alignment. However, I ran into a very strange issue. About 75% of the time, when I press the "Laser" button to fire the laser, it does exactly as one would expect. It fires the laser for as long as you push the button. However, the other roughly 25% of the time, when I push the "Laser" button, the laser stays on and won't turn off until I push the button again.
Sometimes this delay is as long as 4-5 seconds. This is a very dangerous problem as this button is used mostly to check alignment issues. Please Help!!!
Thank You,
David
Re: Laser Button on Display unit doing strange things!
Posted: Wed Jun 13, 2012 5:33 am
by twehr
liaoh75 wrote:Hi All,
I'm now setting up my machine and doing mirror alignment. However, I ran into a very strange issue. About 75% of the time, when I press the "Laser" button to fire the laser, it does exactly as one would expect. It fires the laser for as long as you push the button. However, the other roughly 25% of the time, when I push the "Laser" button, the laser stays on and won't turn off until I push the button again.
Sometimes this delay is as long as 4-5 seconds. This is a very dangerous problem as this button is used mostly to check alignment issues. Please Help!!!
Thank You,
David
This is typically a grounding issue. Specifically, run a separate ground line from the case of the DSP controller to the case of the Laser PS to the mains in ground. You may also need to run a ground line from the case of the control panel to the case of the controller.
Re: Laser Button on Display unit doing strange things!
Posted: Thu Jun 14, 2012 6:45 am
by liaoh75
Thank you Tim, I never thought about that. I'll run a dedicated ground line from the display unit to the frame of the control unit and then to the laser power supply. I will post results after a week or so of testing.
Re: Laser Button on Display unit doing strange things!
Posted: Sun Jun 24, 2012 8:46 am
by liaoh75
Hi Tim and All,
I have done as you suggested and sure enough the laser staying on problem has gone away. Thank you so much for your input. People like you, Marco, and all other responders on this great forum really make this DSP shine. Hopefully, one day, I will have enough experience to help someone else. Thanks a million.
David
Re: Laser Button on Display unit doing strange things!
Posted: Wed Jun 27, 2012 8:35 am
by twehr
liaoh75 wrote:Hi Tim and All,
I have done as you suggested and sure enough the laser staying on problem has gone away. Thank you so much for your input. People like you, Marco, and all other responders on this great forum really make this DSP shine. Hopefully, one day, I will have enough experience to help someone else. Thanks a million.
David
Glad you got it going.