Power Connections; Power Connections For 15 Kw Rectifier Unit - Siemens simovert masterdrives Betriebsanleitung

Connecting-up
7.1

Power connections

NOTE
CAUTION
Protective
conductor
7.1.1

Power connections for 15 kW rectifier unit

Protective
conductor
X1 - Mains
connection
7-4
To ensure installation compliant with UL standards, the power supply
cables must be rated for a minimum temperature of
≥ 75 °C.
The rectifier unit must not be operated without a main contactor. The
main contactor protects it against damage in the event of a fault or
failure of the external 24 V supply (X9).
The protective conductor must be connected up both on the mains side
and on the motor side.
On account of leakage currents through the interference-suppression
capacitors, a minimum cross-section of 10 mm² must be used in
accordance with EN 50178. If mains connections with cross-sections
less than 10 mm² are used, the following measures can be applied.
If the unit is mounted on a grounded mounting surface via a conductive
connection, the protective conductor cross-section can be the same as
that of the supply-cable conductor.
In the case of insulated installation or a poor conductive connection to
the mounting surface, a separate protective conductor with a cross-
section of 10 mm² can be connected up instead of the protective
conductor of the mains connection.
On top of the unit next to terminal X6 is an extra protective conductor
connection in the form of a threaded M4 bolt.
It is used for connecting a protective conductor for units in isolated
connection.
The mains connection is located on the bottom of the unit.
When connecting-up, it is not necessary to make allowance for the
direction of the rotating field of the supply system.
Terminal
PE Protective conductor connection
U1 / L1
V1 / L2
W1 / L3
Connectable cross-section: 10 mm² (AWG 6)
Terminal W1 is at the right when installed.
Table 7-1 Mains connection
Meaning
Phase U1 / L1
Phase V1 / L2
Phase W1 / L3
6SE7087-6NP85-0AA0
Operating Instructions
05.2005
Range
3AC 380 - 480 V
3AC 380 - 480 V
3AC 380 - 480 V
3AC 380 - 480 V
Siemens AG
SIMOVERT MASTERDRIVES