Siemens SINAMICS GL150 - Power and Signal Cable Connections

6.11 Laying additional wiring
Keep any additional wiring in the cabinet as short as possible. Route the additional wiring tightly
against the cabinet enclosure or the mounting plates. You must twist unshielded cables
belonging to the same circuit (outgoing and return conductors).
See also
Electromagnetic compatibility (Page 91)
6.12 Connecting the power unit
6.12.1 Connecting power cables
Preconditions
You may connect the cable shields only to the transformer or the motor (away from the
converter).
0
ᅚ
ᅜ
ᅚᅜᅜᅚᅚᅜ

① Circuit breaker ✓ Connect shield
② Line-side transformer X Do not connect shield
③ Converter
④ Machine-side transformer
⑤ Motor
Figure 6-6 Shield support
Separately route back additional equipotential bonding conductors to the converter. The cross
section of this conductor must be at least as large as the total cross section of the shields.
0
Figure 6-7 Example: Equipotential bonding conductor
Electrical connection
6.12 Connecting the power unit
SINAMICS GL150 6SL38555UN113KA0Z
Operating Instructions Rev.201910281450 EXAMPLE 97