
24V DC wire colors | Automation & Control Engineering Forum
Oct 25, 2023 · I guess the more direct question is: What colors should I use for 24+, 24-, and control on a floating 24V DC system?
24VDC vs. 24VAC | Automation & Control Engineering Forum
Oct 4, 2000 · 24VDC. Our control outputs are almost always transistor outputs. The reason is simple: Long life and high speed sensing and switching. 24VAC can be used but is much less common …
Should 0V be connected to ground? - Control.com
Dec 30, 2002 · Hi, all Should 0v of 24VDC power system for PLC be connected to ground? Any help or information will be welcome.
24vdc Control | Automation & Control Engineering Forum
Jun 27, 2016 · Interposing relays for 24VDC control of 120VAC or 125VDC are used everywhere. Wire type and insulation must exceed the working voltage. The different voltage levels must be separated …
24VDC and 120VAC Control Circuits on the Same Conduit
Jan 27, 2017 · soyxan, The general practice is not to run AC and low-level DC (usually defined as less than 50 VDC) in the same conduit, but like everything in life there are very few hard and fast rules. …
Why 24VDC? | Automation & Control Engineering Forum
Jan 13, 2005 · The way I heard it, an engineering guy told the marketing people that it didn't matter, having a "live zero" was in fact, an advantage. But back to 24Vdc. Some military vehicles and diesel …
Discrete and analog signal in same cable? - Control.com
Nov 5, 2004 · I'm using field junction boxes to gather individual sensor and valve signals from/to the plant area. From the field junction boxes I would like to use 12-pair Belden 9776 (details below) to …
Electrical wiring color code standards | Automation & Control ...
Aug 3, 2004 · OK, since transmitters are DC circuits, +24VDC usually comes out on the White wire to the transmitter and the controlled mA signal leaves/comes back on the Black wire eventually to the …
Wireless I/O that can transfer a 24vdc signal - Control.com
Feb 19, 2003 · Does anyone know where I can find a wireless transmitter and receiver that can transfer a 24vdc signal? All I want to do is turn on a remote alarm with a 24 vdc input. 24vdc & 120 vac …
Signal Segregation | Automation & Control Engineering Forum
Sep 17, 2015 · If the digital signals are low Voltage i.e. 24VDC they can also be run in the same multi pair shielded cable. If solenoids are involved you may need to provide spike suppression (MOV for …