Re: [PSES] Machine status visual Indicators

[sgbrody]

Thank you all for your comments.  The color blind aspect is important. Thanks 
all.Sent from my T-Mobile 5G Device
 Original message From: Steve Brody  Date: 
6/23/23  2:52 PM  (GMT-05:00) To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] 
Machine status visual Indicators 
  
   Experts,
   
  
    
   
  
   I have a client who would like to use a single LED capable of multiple 
colors instead of a mutli-lamp light tower that we are used to seeing.
   
  
    
   
  
   It can produce the required colors in accordance with 60204-1, Table 4.
   
  
    
   
  
   I have read through 60204-1 (machinery) safety and 61310-1 (requirements for 
visual, acoustic, and tactile signals) and did not find anything that prohibits 
the use of a single LED.
   
  
    
   
  
   Thoughts?
   
  
    
   
  
    
   
  
    
   
   
   
Steve Brody

   
sgbr...@comcast.net

   
C - 603 617 9116

  
 

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Re: [PSES] Machine status visual Indicators

[John Woodgate]

Good point. That's how drivers can cope.

==
Best wishes John Woodgate OOO-Own Opinions Only
www.woodjohn.uk
Rayleigh, Essex UK

I hear, and I forget. I see, and I remember. I do, and I understand. 
Xunzi (340 - 245 BC)



On 2023-06-23 23:13, IBM Ken wrote:
Hi Steve!  I don't have a copy of that standard but I'm picturing the 
red/yellow/green towers on things like manufacturing floor hipot 
testers.  Have you considered the colorblind user who might not be 
able to discern yellow from red, but on a 'stoplight'-like tower, can 
at least use the illuminated position to determine the indicator status?


-Ken A

On Fri, Jun 23, 2023 at 2:52 PM Steve Brody  wrote:

Experts,
I have a client who would like to use a single LED capable of
multiple colors instead of a mutli-lamp light tower that we are
used to seeing.
It can produce the required colors in accordance with 60204-1,
Table 4.
I have read through 60204-1 (machinery) safety and 61310-1
(requirements for visual, acoustic, and tactile signals) and did
not find anything that prohibits the use of a single LED.
Thoughts?
Steve Brody
sgbr...@comcast.net
C - 603 617 9116
-


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Re: [PSES] Machine status visual Indicators

[IBM Ken]

Hi Steve!  I don't have a copy of that standard but I'm picturing the
red/yellow/green towers on things like manufacturing floor hipot testers.
Have you considered the colorblind user who might not be able to discern
yellow from red, but on a 'stoplight'-like tower, can at least use the
illuminated position to determine the indicator status?

-Ken A

On Fri, Jun 23, 2023 at 2:52 PM Steve Brody  wrote:

> Experts,
>
> I have a client who would like to use a single LED capable of multiple
> colors instead of a mutli-lamp light tower that we are used to seeing.
>
> It can produce the required colors in accordance with 60204-1, Table 4.
>
> I have read through 60204-1 (machinery) safety and 61310-1 (requirements
> for visual, acoustic, and tactile signals) and did not find anything that
> prohibits the use of a single LED.
>
> Thoughts?
>
>
>
> Steve Brody
> sgbr...@comcast.net
> C - 603 617 9116
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to 
> emc-p...@ieee.org
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
>
> Website: http://www.ieee-pses.org/
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> unsubscribe) 
> List rules: http://www.ieee-pses.org/listrules.html
>
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> Mike Cantwell mcantw...@ieee.org
>
> For policy questions, send mail to:
> Jim Bacher j.bac...@ieee.org
> David Heald dhe...@gmail.com
> --
>
> To unsubscribe from the EMC-PSTC list, click the following link:
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Re: [PSES] Machine status visual Indicators

[Douglas Powell]

Steve,

I recommend that you include this concern in your Risk Assessment to
determine whether the LED color is critical to safety or not. You can then
record your level of risk and compare it to your risk tolerance. Include
all possible failure modes, such as LED failure, incorrect polarity, driver
failure, errors in programmable devices (logic) responsible for displaying
the correct indicator color, and so on.

-Doug

Douglas E Powell
Laporte, Colorado, USA
doug...@gmail.com
LinkedIn 

(UTC-06:00, US-MDT)


On Fri, Jun 23, 2023 at 12:52 PM Steve Brody  wrote:

> Experts,
>
> I have a client who would like to use a single LED capable of multiple
> colors instead of a mutli-lamp light tower that we are used to seeing.
>
> It can produce the required colors in accordance with 60204-1, Table 4.
>
> I have read through 60204-1 (machinery) safety and 61310-1 (requirements
> for visual, acoustic, and tactile signals) and did not find anything that
> prohibits the use of a single LED.
>
> Thoughts?
>
>
>
> Steve Brody
> sgbr...@comcast.net
> C - 603 617 9116
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to 
> emc-p...@ieee.org
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
>
> Website: http://www.ieee-pses.org/
> Instructions: http://www.ieee-pses.org/list.html (including how to
> unsubscribe) 
> List rules: http://www.ieee-pses.org/listrules.html
>
> For help, send mail to the list administrators:
> Mike Cantwell mcantw...@ieee.org
>
> For policy questions, send mail to:
> Jim Bacher j.bac...@ieee.org
> David Heald dhe...@gmail.com
> --
>
> To unsubscribe from the EMC-PSTC list, click the following link:
> https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC=1
>

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Re: [PSES] Machine status visual Indicators

[Richard Nute]

 

Go for it!

Rich

 

 

From: Steve Brody  
Sent: Friday, June 23, 2023 11:52 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Machine status visual Indicators

 

Experts, 

  

I have a client who would like to use a single LED capable of multiple colors 
instead of a mutli-lamp light tower that we are used to seeing. 

  

It can produce the required colors in accordance with 60204-1, Table 4. 

  

I have read through 60204-1 (machinery) safety and 61310-1 (requirements for 
visual, acoustic, and tactile signals) and did not find anything that prohibits 
the use of a single LED. 

  

Thoughts? 

  

  

  

Steve Brody 

sgbr...@comcast.net   

C - 603 617 9116 


-

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[PSES] Machine status visual Indicators

[Steve Brody]

Experts,
 
I have a client who would like to use a single LED capable of multiple colors 
instead of a mutli-lamp light tower that we are used to seeing.
 
It can produce the required colors in accordance with 60204-1, Table 4.
 
I have read through 60204-1 (machinery) safety and 61310-1 (requirements for 
visual, acoustic, and tactile signals) and did not find anything that prohibits 
the use of a single LED.
 
Thoughts?
 
 
 
Steve Brody
sgbr...@comcast.net mailto:sgbr...@comcast.net
C - 603 617 9116

-

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