Electrical Connection Of Units That Are Connected In Parallel - Siemens SINAMICS G150 Operating Instructions Manual

I/O interfacing
● Create a low-impedance ground connection for additional cabinets, system components,
● Ground unused lines at one end in the cabinet.
● Choose the greatest possible clearance between the power and signal cables (at least 20
● Avoid unnecessarily long cable loops.
Filtering cables
● Line supply cables and power supply cables for devices and modules may have to be
● To reduce emissions, the device is equipped with a radio interference suppression filter
Protective ground conductors
● According to EN 61800-5-1, Section. 6.3.6.7, the minimum cross-section of the protective
4.7

Electrical connection of units that are connected in parallel

Description
After the mechanical installation has been completed, the following electrical connections
must be established between the right-hand and left-hand sub-cabinets for units that are
connected in parallel:
● The PE buses must be connected
● Connecting the DC link connections
● The 24 V DC, 230 V AC power supply and signal cables must be connected
● The DRIVE-CLiQ topology must be connected
During connection, installation and repair work on units that are connected in parallel, it
must be ensured that both sub-cabinets are electrically disconnected from the power
supply.
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
and distributed devices with the largest possible cross-section (at least 16 mm²).
cm). The greater the distance over which the cables are routed in parallel, the greater the
clearance must be. If a sufficient clearance cannot be maintained, you must install
additional shields.
filtered in the cabinet to reduce incoming or outgoing disturbances.
as standard (in accordance with the limit values defined in category C3). Optional filters
can be fitted for use in the first environment (category C2).
ground conductor must conform to the local safety regulations for protective ground
conductors for equipment with a high leakage current.
DANGER
4.7 Electrical connection of units that are connected in parallel
Electrical installation
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