ABB ACS880-604

31
One R8i module in a 600 mm wide Rittal VX25 enclosure without DC
switch/disconnector ...............................................................................
32One R8i module in a 600 mm wide Rittal VX25 enclosure with DC switch/disconnector .
34Overview of kits ...................................................................................
35Stage 1: Installation of common parts .........................................................
36Stage 2A: Installation of DC busbars (1) (without DC switch or charging) ...............
37Stage 2B: Installation of DC busbars (1) (with DC switch and charging) .................
38
Stage 3: Installation of quick connector and outgoing resistor busbars (cable
connection) ........................................................................................
39Stage 4: Installation of incoming resistor busbars (cable connection) ....................
40Stage 5: Installation of mounting plates and cable entries ..................................
41Stage 6: Installation of support plate ...........................................................
42Stage 7: Installation of shrouding ...............................................................
43Stage 8: Installation of brake chopper module ...............................................
5 Guidelines for planning the electrical installation
45Contents of this chapter ..........................................................................
45Limitation of liability ...............................................................................
45Generic guidelines ................................................................................
45Selecting the brake resistors ....................................................................
46Selecting and routing the brake resistor cables ..............................................
46Typical resistor cable sizes ..................................................................
46Minimizing electromagnetic interference ...................................................
46Maximum cable length ........................................................................
46EMC compliance of the complete installation .............................................
46Placing the brake resistors ......................................................................
47Selecting the resistor thermal switch circuit cable ...........................................
47Protecting the system against thermal overload .............................................
47Operation principle ............................................................................
47Protecting the system against short-circuits ..................................................
6 Electrical installation
49Contents of this chapter ..........................................................................
50Electrical safety precautions ....................................................................
51General notes .....................................................................................
51Static electricity ................................................................................
51Optical components ...........................................................................
51Measuring the insulation of brake resistor and resistor cable ..............................
52Connecting the brake resistor cables and thermal switch ..................................
52Connection diagram ..........................................................................
53Connection procedure of the brake chopper cubicle .....................................
53Connection procedure of the resistor cables ..............................................
54Connection procedure of the thermal switch cable .......................................
54Connecting the fiber optic cables ...............................................................
54Installing optional modules ......................................................................
55Connecting a PC ..................................................................................
7 Control unit
57Contents of this chapter ..........................................................................
57General .............................................................................................
58BCU-x2 control unit layout and connections ..................................................
6 Table of contents