I have faced an issue with reading a 4-2 mA signal coming form a gas sensor in ABB control panel. Here is the story to share about this small project:
There are two signal splitters coming from our gas guard panel that bring 4-20 mA signals in our ABB control panel. This is a nonpowered loop device since the splitters are powered within the gas guard panel. I have configured the hardware and IO settings in the ABB software and connected the wire leads based on the panel drawing, which I have attached here. Despite this, I am facing an issue where the only reading I am receiving on the raw inputs is constant -32768.
I need assistant with GG-FMA-1002 and GG-MECH-1001. Please note that the H- leg has 24 VDC and as mentioned earlier, the signal repeaters are powered from the power source inside the gas guard cabinet. The two wires landing into the ABB control panel are only 4-20 mA. That is why in my design, I only connect them to the M and L legs. I also removed the 0 VDC voltage reference on the L legs. Can someone review the drawing and let me know if the wiring diagram is correct? I will really appreciate it.
There are two signal splitters coming from our gas guard panel that bring 4-20 mA signals in our ABB control panel. This is a nonpowered loop device since the splitters are powered within the gas guard panel. I have configured the hardware and IO settings in the ABB software and connected the wire leads based on the panel drawing, which I have attached here. Despite this, I am facing an issue where the only reading I am receiving on the raw inputs is constant -32768.
I need assistant with GG-FMA-1002 and GG-MECH-1001. Please note that the H- leg has 24 VDC and as mentioned earlier, the signal repeaters are powered from the power source inside the gas guard cabinet. The two wires landing into the ABB control panel are only 4-20 mA. That is why in my design, I only connect them to the M and L legs. I also removed the 0 VDC voltage reference on the L legs. Can someone review the drawing and let me know if the wiring diagram is correct? I will really appreciate it.