December 16, 2018, 06:19:35 AM
Robotforum | Industrial Robots Community

 KUKA Vision MXG20 camera connections


Author Topic:  KUKA Vision MXG20 camera connections  (Read 753 times)

0 Members and 1 Guest are viewing this topic.

May 15, 2018, 07:04:32 PM
Read 753 times
Offline

SkyeFire

Global Moderator
So, this is a weird one.  I have a pair of robots (KRC4, KSS 8.3) with KUKA VisionTech 3.0, and using the KUKA MXG20 smart cameras. 

I've run into an issue connecting the cameras to the robots.  These robots were configured with VisionTech from the factory, and came pre-installed with the Power-Over-Ethernet option for the cameras.  And when these robots were at the integrator's facility, the cameras worked -- I was able to get live video from the cameras to the SmartPads.  I never looked closely at the cables, since they were all installed before I arrived on-site.

Since then, the system was broken down and moved to the final customer location.  In the process, the original robot-to-camera cables were replaced with new cables (both KUKA-sourced), due to routing issues requiring longer cable runs.  And now, I can't get a connection -- there's not even a power light on the cameras.

When I examined the new cables closely, I found that the cables have male M12 ends.  And when I check the VisionTech 3.0 manual, I see that the PoE/Data port on the camera is also male.  This obviously can't work.  And to make things worse, aside from being male/female, the "aux power and I/O" port on the camera is physically identical to the PoE cable.  So, obviously, the new cables are wrong.  Right?

Except... I had someone (over the phone) check the original cables, and those cables also have male M12 ends.  ???

So, the only thing I can think of is that the manual is wrong?  I've attached the relevant images from the manual.  It's obvious that I can't run images over the power supply port, so either something really strange is going on, or the manual is incorrect on which port is which in the first image.

Anyone ever run into this before?  I'm having the original cables shipped to me post-hast, but in the meantime, I'm stuck.

Linkback: https://www.robot-forum.com/robotforum/index.php?topic=26846.0

Today at 06:19:35 AM
Reply #1

Advertisement

Guest

May 15, 2018, 07:57:59 PM
Reply #1
Offline

panic mode

Global Moderator
1) http://www.robot-forum.com/robotforum/kuka-robot-forum/read-first/
2) if you want reply about robot, post it in forum
3) read 1 and 2

May 16, 2018, 12:49:07 PM
Reply #2
Offline

SkyeFire

Global Moderator

For the camera?  I don't know.
For the cables?  The "good" cable is 00-218-279, the "bad" cable is 00-218-281.  Which, according to my sources, is electrically identical but with different lengths.  I'm waiting for the "good" cables to come in so I can try swapping them around.

In the meantime, I've been poking around some more -- I have a power light on the camera, but the robot shows no detection of the sensor.  I also have a "fault" light on the KUKA PoE switch inside the cabinet, but aside from labelling it, the manual says nothing about it or what it means.  I've confirmed that I have a good 27VDC going into the switch.  Also, the switch's ports that are connected to the camera and to KONI both show green lights, as long as the cables are plugged in.

May 16, 2018, 04:12:09 PM
Reply #3
Offline

SkyeFire

Global Moderator
Update:  I got my old cable back, and swapped it in place of the current one.  This time, both LEDs on the camera lit up, and the robot found the camera right away.  So, it's pretty obvious I have a bad cable.

And the good cable is also male on the M12 end.  So it seems pretty obvious that the diagram in the VT manual is either incorrect, or incomplete.

So now I need to send the bad cable back to KUKA to be exchanged, since my old good cable isn't long enough.  But I can use it temporarily.

May 18, 2018, 12:21:30 PM
Reply #4
Offline

panic mode

Global Moderator
just came back and checking my documents... you are correct.


Camera has two connectors. male connector is IO and female connector is PoE. In manual for VisionTech 3.0 they are shown reversed. Manual for VisionTech 3.1 is corrected.


And those two cables are supposed to be the same except for length...

Today at 06:19:35 AM
Reply #5

Advertisement

Guest

May 21, 2018, 06:14:00 PM
Reply #5
Offline

panic mode

Global Moderator

May 21, 2018, 10:04:37 PM
Reply #6
Offline

Whsoj


Article numbers?

For the camera?  I don't know.
For the cables?  The "good" cable is 00-218-279, the "bad" cable is 00-218-281.  Which, according to my sources, is electrically identical but with different lengths.  I'm waiting for the "good" cables to come in so I can try swapping them around.

In the meantime, I've been poking around some more -- I have a power light on the camera, but the robot shows no detection of the sensor.  I also have a "fault" light on the KUKA PoE switch inside the cabinet, but aside from labelling it, the manual says nothing about it or what it means.  I've confirmed that I have a good 27VDC going into the switch.  Also, the switch's ports that are connected to the camera and to KONI both show green lights, as long as the cables are plugged in.
[/quote]

How much longer is the New cable VS the old one?

May 21, 2018, 11:19:17 PM
Reply #7
Offline

panic mode

Global Moderator
if i recall old one is 15m, new one is 25m

May 22, 2018, 12:06:41 AM
Reply #8
Offline

Whsoj



Well I thought you might have a voltage drop from wire resistance. But AWG24 @ 50m is 4.21ohms. Max is 12.5 for PoE. So you should be good. Guess you got a bad wire?

May 22, 2018, 03:30:26 PM
Reply #9
Offline

SkyeFire

Global Moderator
Yes, definitely a bad cable.  My other robot has the new, 25m, cable, and works fine.  Since both 25m cables were ordered together and are brand new, I can only assume I got a lemon.

Today at 06:19:35 AM
Reply #10

Advertisement

Guest


Share via facebook Share via linkedin Share via pinterest Share via reddit Share via twitter

lamp
KUKA + Scorpion vision Software + Sony Camera

Started by isapa on KUKA Robot Forum

22 Replies
9253 Views
Last post November 11, 2013, 03:23:30 PM
by Cognetic
xx
Vision Offsets issue- Application two robots with one vision camera.

Started by pdubey on Fanuc Robot Forum

0 Replies
594 Views
Last post March 30, 2017, 06:24:13 PM
by pdubey
xx
Connecting kUKA IIWA With Robotic Gripper and Cognex machine vision camera

Started by Keerthi_90 on KUKA Robot Forum

4 Replies
2168 Views
Last post October 24, 2016, 02:18:03 PM
by SkyeFire
xx
Help: about connect Camera vision to ABB IRB 1200!

Started by linh_hn_vn on Manuals, Software and Tools for ABB Robots

1 Replies
872 Views
Last post June 07, 2018, 05:28:14 PM
by zicki_88