What is the voltage between the positive terminal of a 24V DC instrument and ground? What about the negative terminal? Why is it like this? What happens if the negative terminal is grounded? What happens if the positive terminal is grounded?
In a 24V DC power system, if neither terminal is connected to ground (i.e., the system is floating), the voltage between each terminal and ground is undefined and may fluctuate. However, once the power supply is connected to an instrument, the reference potential stabilizes, and this typically has no negative effect on instrument operation. When […]
