5 5.5 5.5.3 Multi-axis controllers Wiring Devices in the range 2 ... 24 A (0.37 ... 11 kW) Design of the cables ƒ The cables used must comply with the approvals required for the location (e.g. UL). ƒ It is imperative to comply with the regulations concerning minimum cross-sections of PE conductors. The cross-section of the PE conductor must be at least as large as the cross-section of the power connections. ƒ The effectiveness of a shielded cable is reached by: – Providing a good shield connection through large-surface shield contact. – Using only braided shields with low shield resistance made of tin-plated or nickel-plated copper braid.
– Using braided shields with an overlap rate > 70 % and an overlap angle of 90 °. – Keeping unshielded cable ends as short as possible. Use system cables or shielded cables for these connections: ƒ Motor ƒ Motor holding brake (connected to optional motor brake control) ƒ Motor temperature monitoring The following connections need not be shielded: ƒ DC bus DC bus Use the integrated DC busbars (X109 and X110) to connect the DC bus. The mounting backplane of the multi-axis controllers is already equipped with a fuse. The busbar mounting set (accessories) can also be used to integrate single-axis controllers into a drive network.
The busbar mounting set for single-axis controllers also contains the fuse required for the mounting backplane. The DC bus is supplied via a DC supply module or a DC-feeding point which always have to be located on the left-hand side. Compatiblewiththe9300series,theDC-busvoltagecanalsobesuppliedvia terminals +UG/-UG (X100, right part) for all devices. 5.5-6 EDS94SPP101 EN 3.1-04/2007