July 18, 2019, 03:34:56 PM
Robotforum | Industrial Robots Community

 Svgn-20 and svgn-158

normal_post Author Topic:  Svgn-20 and svgn-158  (Read 167 times)

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July 11, 2019, 10:00:16 PM
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Hi guys,
I’ve got a fanuc robot with a rj3ib controller and dual aero ped welders. I am getting alarm svgn-20 pressure shortage 2 gun 1 and svgn-158 thickness 5 expected 10 available 22 and max 25. It only does it when it tipdresses. Gun 1 will clamp onto the tipdresser then the fault occurs. We have changed tips, did an auto gun master with the same result. We next did a auto gun master and ran wr_set01 with same result.  We checked to see what the thickness measured at the time of the fault and it was -4.8. We changed the thickness in the tipdress line to 10 without change.  We changed the expected to 15 and to 5 in the pressure schedule under detail with no change.  The tipdress function is set to tipdress not spot.  The guns do have a counter balance and have a gun 1 equalizer pressure and gun 2 equalizer pressure outputs.   It welds fine but just won’t tipdress without faulting out.  We checked tip alignment and dresser alignment at the start. Any ideas on a fix?

Today at 03:34:56 PM
Reply #1



July 12, 2019, 10:46:47 AM
Reply #1


Hi Nathan,
the message means that the Robot doesn't get the expected pressure.
1. Try to increase the Gun Speed.
If it doesn't work increase the Pushing depth on your pressure shedule.

July 12, 2019, 11:21:49 PM
Reply #2


Thanks for the rely. I have already increased the pushing depth with no result. How do I change the gun speed?  Forgive me because the spot welding robots are somewhat new to me.

July 15, 2019, 05:20:47 AM
Reply #3


Hi Nathan,
are you using a Servo Gun or Air pressure gun?

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