MACHINE COLOR CABLE CODE STANDARD

[josedavidch]

Hello,

I have been reading about color codes for machines control enclosure.
I would like to get a better idea using a new post and getting as much info as possible.

In the last 10 years, I have been using a color standard I learned since I start working on automation on my first employment, following the lead of some other experienced engineers on my group. This is the code

BLACK - AC POWER
WHITE - AC NEUTRAL
BROWN + 24VDC
BLUE 0VDC
YELLOW - PLC DIGITAL INPUT
VIOLET - PLC DIGITAL OUTPUT
ORANGE - PLC ANALOG INPUT
GREY - PLC ANALOG OUTPUT
GREEN - GROUND
RED - OTHER DC THAN 24V (12, 5, etc)

I have not found any match with this code and now, owning my company, I would like to use the best possible, such as a ISA related. (reading about ISAs)

Thanks.

 

[josedavidch]

I found this at

http://control.com/thread/1026163003

"In Europe control panels I have seen this standard.

1. Power - Black
2. Neutral - Light blue
3. Protection - green-yellow
4. Control volts 220V Ac-Red
5. Control Volts 24V AC-Red
6. Control Volts 24 V DC- dark blue
7. Analog Input - White
8. Analog output - Violet
9. Digital Input - Brown
10.Digital Output - Grey
11.External voltage(dry contact signals)-orange
11.Ex -i/d -blue (separated)"