Toshiba 2000 V Series Manual

Also see for 2000 V Series: User manual

6F8C0845 433.5 Network Power/Grounding33.5.4 Network groundingThe DeviceNet requires 1-point grounding (Class D grounding exclusive to controllers)for the network.Grounding at two or more points can cause grounding loop. Conversely, an ungroundednetwork is likely to malfunction due to external noise.Use a power tap at the point of 1-point grounding. Connect the ground terminal of thepower tap mentioned earlier to the FG terminal of the power unit, then ground it as closeto the physical center of the network as possible by Class D grounding. (Figure 3-15) .(Install a power tap near the center of the network and ground it).When two or more power units are used in the network, ground only the power taplocated near the center of the network.Use a grounding wire (#8AWG) 3 meters long, maximum.Figure 3-15 How to Install Your NetworkFG V − V +電源供給装置電源タップV − V +設置端子接地する電源タップPower tapGrounding terminalPower unitPower tap groundedFG V − V +電源供給装置電源タップV − V +接地端子接地しない電源タップPower tapGrounding terminalPower unitPower tap not grounded