Power Connections - Siemens 6SE7087-8KN50 Instructions De Service

Connecting-up
7.1

Power connections

WARNING
NOTICE
7-4
If the input and output terminals are mixed up, the unit will be
destroyed!
If the input terminals are mixed up, the converter or the rectifier unit can
be destroyed!
The supply terminals are marked as follows:
DC connection:
Motor connection:
Protective conductor connection:
When connected to DC busbars, the units have to be protected with
fuses according to Fig. 7-3 and Table 7-1. If the connection between
the busbar and the unit is short-circuit-proof, protection can also be
provided via internal unit fuses (internal unit fuses are standard from
type ≥ J onwards, and are available as option L30 for units of type
"E" – "G").
C/L+
D/L−
P/3
D/L− C/L+ P/3 1
=
~
P/3 2
M
3 ~
Fig. 7-3 DC busbars
C/L+
U2/T1 V2/T2
PE1
6SE7087-7KN50
Operating Instructions SIMOVERT MASTERDRIVES
08.2008
D/L-
W2/T3
PE2
Siemens AG