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Topic-icon Digital Input on SBL2360 not behaving with Low as active level

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1 week 2 days ago - 1 week 2 days ago #29534525 by arli

Hi there,
I am trying to use a digital input with a relay to trigger a safety stop on an SBL2360.
I would like the safety stop to be triggered when it sees low on DIn 2.
However, no matter which setting (HIGH/LOW) I choose on the digital input active level, the DIn 2 "LED" In roborun lights up when the input is HIGH.
What could be the issue?
My Config is attached.

File Attachment:

File Name: 20190208Fr...2-08.zip
File Size:2 KB



Thank you

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1 week 2 days ago #29534526 by arli

I would also like to add that the Safety stop LED always lights up when DIn2 lights up, regardless of Active (HIGH/LOW)

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1 week 1 day ago #29534527 by Gabriel_Isko

Can you post a picture of how you have it wired, and let me know what version of firmware you are using? I could not reproduce this issue with a test button.

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6 days 10 hours ago #29534528 by arli

Hi Gabriel,
This is my Roboteq Firmware Version

?trn
TRN=SBL2XXX:SBL2360
?FID
FID=Roboteq v1.8d SBL2XXX 1/8/2018

I have attached pictures of how my DIn is wired up.



I have tried 2 configurations of the wiring but neither seem to have worked.

We are trying to use the DIn as a safety input, where we connect it to the Common terminal of a relay, the Normally Open terminal to 5v, and the Normally Closed to Ground. This should let the DIn get pulled to ground if any connection is broken.

Do let us know how we should be wiring this.

Thank you.

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5 days 15 hours ago #29534530 by Gabriel_Isko

Both of these aren't quite right. Please reference the input/output wiring on page 46 of our User Manual .

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5 days 10 hours ago #29534531 by arli

Hi Gabriel,
I referred to page 47, Figure 3-5 when wiring it up as per the first diagram.


I might be missing something but are they not electrically the same?
It is my understanding that if you pull DIn to Ground (switch closed), it should cause the DIn LED in Roborun to light up if the DIn is configured to active low.

The issue is that my DIn works as an active High (i.e when the switch is OPEN) regardless of which way I configure the DIn in roborun.

Could you explain what I'm not getting right?

Thanks for the help!

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4 days 15 hours ago #29534535 by Gabriel_Isko

Put a pull down resistor between Din2 and GND

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