Author Topic: KRC4 Compact IO wiring  (Read 624 times)

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Offline AiSard

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KRC4 Compact IO wiring
« on: March 20, 2018, 08:52:09 AM »
I want to use the robot IO to control a solenoid valve, we're using a KRC4 Compact.

The default IO mapping for the EL1809 is already mapped and working (checked the lights when I fiddled with the outputs on the pad) but I'm unsure how to do the physical IO wiring.
My solenoid valve has two wires, positive to go to one of the ports on the EL1809, while I understand the negative would go to the EL1100?
But of the three negative ports on the EL1100, two connect to each other, and the last connects to X55 (which I vaguely recall got connected to itself (to close the circuit?) by the kuka guy when we were setting up the robot years ago.

In this case where should I be plugging the wires in to?
(sorry if I'm missing any information/context, very weak in terms of hardware :icon_frown:)

tl;dr For my valve, where should I connect my negative wire?

edit: added photo
« Last Edit: March 20, 2018, 09:02:43 AM by AiSard »

Offline Ayoub

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Re: KRC4 Compact IO wiring
« Reply #1 on: March 20, 2018, 10:38:37 AM »
EL2809 : 16 outputs 24V/0.5A
EL1809 : 16 inputs 24V/3ms
You have to use X12 interface instead of wiring directly on the beckhoff module.
Connect the positive wire of the solenoid valve  to one of the outputs and the second to a common ground, then you've to configure this output with WV to open and close the solenoid valve.

Offline AiSard

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Re: KRC4 Compact IO wiring
« Reply #2 on: March 20, 2018, 11:14:39 AM »
Is X12 the one with 30+ pin holes?
Someone must've mixed the labels around as I've been thinking that was X69 all this time..
(and was wondering why it didn't match up with the manuals...)

But yes, I'm connecting to EL1809 through the 30+ pin hole interface, not directly.
The common ground thing is the thing I was stumped on, but I've since figured out I can take it from X55 (right?) pins 6/8?

The WV is already configured.

Offline panic mode

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Re: KRC4 Compact IO wiring
« Reply #3 on: March 20, 2018, 12:45:43 PM »
if you are referring to X12 connector on the controller, that is 50-pole female connector and it has 50 contacts ("DB50F").

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

Offline AiSard

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Re: KRC4 Compact IO wiring
« Reply #4 on: March 21, 2018, 05:28:51 AM »
got the ground from X55, IO is working  :icon_smile:
would have gotten it sooner but had the pins for X12 mirrored (was stupidly looking at the labelled numbers rather than where the wires were actually going)  :hammer1:

Thanks for the info about X12 though

Offline panic mode

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Re: KRC4 Compact IO wiring
« Reply #5 on: March 21, 2018, 12:13:14 PM »
contact numbers are written on the connector insert - next to each contact.
for those without magnifying glass, here are pinouts for DB connecotrs.

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