Bus Connection - Siemens SINAMICS Series Operating Instructions Manual

Descriptions of functions
10.31 Expanding the SINAMICS DCM to include a second CUD

Bus connection

Up to 31 drives receive the same setpoints from a drive. The drive that sends the setpoints
must be selected by setting "Enable send" to 1. For all other drives, "Enable send" must be
set to 0.
1) The shields for the interface cables must be connected directly on the devices (using a clamp, for example) to device
or cabinet ground, with a low level of impedance.
2) Twisted cable, e.g. LIYCY 2×0.5 mm
that the difference in ground potentials between the link partners remains below 7 V.
Figure 10-88 "Bus connection" peer connection type
10.31 Expanding the SINAMICS DCM to include a second CUD
General information
As an option, the SINAMICS DC MASTER can be equipped with a second CUD by inserting
it in the right-hand slot. This option is only available in conjunction with option G00
(Advanced CUD in left-hand slot). See also Chapter "Ordering information for options and
accessories".
For the installation of the second CUD, see Chapter "Installing a second CUD (Page 89)"
and "Replacing the CUD (Page 700)".
NOTICE
Installation or removal only in a no-voltage state.
Installing or removing a module is only permitted when the SINAMICS DC MASTER is in
the voltage-free state.
628
; with longer cables, an equipotential bonding cable should be used to ensure
2
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A