Inverter Connection For Different Pulse Operation - Siemens SINAMICS G180 Installation And Operating Instructions Manual

Procedure
● Only connect the inverter via a permanently routed connecting cable. Refer to the following
● Observe the switch manufacturer instructions when connecting cables directly at the main
Table 6-2
Frame size
BG K1
BG K2
BG K3
BG K4
BG K5
BG K51
BG K6
● Connect the mains power cables L1-L2-L3 to terminals U1, V1, W1 of terminal strip -X1 of
6.5.4

Inverter connection for different pulse operation

Inverters with higher pulsed inputs are available for higher outputs from approx. 500 kW as
they cause smaller circuit feedback on the mains power supply.
Connect the inverter to the mains power supply depending on the pulse operation:
Installation and operating instructions Sinamics G180
Operating Instructions, 05/2013, 4BS0751-001
table for the possible connection cross-sections for compact devices. The connection cross-
sections for cabinet units can be found in the technical data of the inverterdocumentation.
switch. These are provided in the circuit diagram pocket in the invertercabinet. If necessary,
special equipment cable lugs must be used in order to be able to utilize the connection
spaces available.
Conductor cross-sections for compact devices
the inverter: Refer to the technical data for the correct tightening torques for the power cable
connection.
NOTICE
Destruction due to nonsymmetrical current distribution
In the case of high pulsing inverters, destruction of the rectifier can occur due to
nonsymmetrical current distribution. Pay attention to symmetrical current distribution. Use
the same cable types and lengths as well as the same connection technology for every
mains power connection. Route all cables on the same or a comparable route so that the
cable temperatures are the same.
Flexible cable
0.2 ‑ 6 mm²
4 ‑ 16 mm²
0.75 ‑ 35 mm²
2.5 ‑ 120 mm²
2.5 ‑ 120 mm²
2.5 ‑ 120 mm²
50 ‑ 240 mm²
Electrical connection
6.5 Line supply connection
Rigid cable
0.2 ‑ 10 mm²
2.5 ‑ 25 mm²
0.75 ‑ 50 mm²
2.5 ‑ 120 mm²
2.5 ‑ 120 mm²
2.5 ‑ 120 mm²
50 ‑ 240 mm²
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