45W Laser Power Supply Wiring for Manual Power Control

ToddWatson
Posts: 4
Joined: Tue Mar 21, 2017 12:43 pm

45W Laser Power Supply Wiring for Manual Power Control

Postby ToddWatson » Sat Apr 08, 2017 1:15 pm

Could you please verify or correct the following diagram to manually control the laser power by a Potentiometer.

I tried this connection setup and the laser did not fire at any power in manual mode. I also have an X7 module controlling the power as well (That works when I use the controller test button) The controller is isolated from the laser power supply circuit by a DPDT switch when in manual mode. Please see attached.

Laser Power Control Circuit.JPG
Laser Power Control Circuit.JPG (68.77 KiB) Viewed 2060 times

Tech_Marco
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Joined: Mon Jun 15, 2009 3:00 pm

Re: 45W Laser Power Supply Wiring for Manual Power Control

Postby Tech_Marco » Sat Apr 08, 2017 3:24 pm

During manual mode, it fires only if you press the Fire Laser button switch

Marco

ToddWatson
Posts: 4
Joined: Tue Mar 21, 2017 12:43 pm

Re: 45W Laser Power Supply Wiring for Manual Power Control

Postby ToddWatson » Tue Apr 11, 2017 6:19 pm

Tech-Marco,

When I press the fire button the laser doesn't fire at any potentiometer adjustment. I just wanted to verify that the circuit is correct.

I know the potentiometer is acting as a voltage divider resulting from 0 volts to +5 volts DC at the IN terminal.

Does the laser power supply need to be power cycled when I go from PWM mode to analog voltage mode?

I am using L to G, thus creating 0 volts at L to fire the laser. Is that correct? Should I fire from +5 to H instead?

Techgraphix
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Location: Appelscha, the Netherlands
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Re: 45W Laser Power Supply Wiring for Manual Power Control

Postby Techgraphix » Wed Apr 12, 2017 8:00 am

Did you connect both (Laser1 and Laser2) WP (waterprotect) connectors to GND on the controller? Or connected a flowswitch to one of this connectors and shortcircuited the other to GND??
It is not in your drawing..

Kees

Tech_Marco
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Joined: Mon Jun 15, 2009 3:00 pm

Re: 45W Laser Power Supply Wiring for Manual Power Control

Postby Tech_Marco » Wed Apr 12, 2017 8:08 am

If he hasn't turned on the water protection on the DSP card he doesn't has to connect WP to the ground on the controller side. So far I don't see any problem on his diagram. If Fire button press it should fire the laser on the manual mode. Could be connection issue I guess

Marco

ToddWatson
Posts: 4
Joined: Tue Mar 21, 2017 12:43 pm

Re: 45W Laser Power Supply Wiring for Manual Power Control

Postby ToddWatson » Thu Apr 13, 2017 9:48 am

Marco,

I will recheck my wiring, thank you for reviewing the drawing.

Tech_Marco
Posts: 4404
Joined: Mon Jun 15, 2009 3:00 pm

Re: 45W Laser Power Supply Wiring for Manual Power Control

Postby Tech_Marco » Thu Apr 13, 2017 10:16 am

Check the continuity of the Fire Button. You may connected it to normally closed (NC) mode instead of normally opened (NO).

Marco


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