Bosch Rexroth IndraDrive HMV01.1E-W0030, Руководство по планированию проекта, Страница: 57 / 132

Rexroth IndraDrive Electrical Installation
7-17
DOK-INDRV*-HMV-*******-PR01-EN-P
DC Bus (L+, L-)
The DC bus connection connects
•
the supply unit to the drive controller
•
the supply unit to additional components in order to
•
increase the stored power by means of DC bus capacitor unit
•
increase the permissible braking resistor continuous output by
means of DC bus resistor unit
The DC bus is connected by contact rails and screws (M6) to the front of
the drive controller. There are various lengths of contact rail depending on
the width of the drive controllers.
schienen_zwkreis
Fig. 7-12: Contact rails
6 Nm
If in special cases it is not possible to use the DC bus rails provided to
make the connection, the connection must be made using the shortest
possible twisted wires.
Length of the twisted wire
max. 2 m
Wire cross-section
min. 10 mm²,
however, no less than the
cross-section of the power
input line
Wire protection
by means of fuses in the
mains supply
Voltage stability of a single strand against
grounding
> 750 V
(e.g., strand type - H07)
CAUTION
Risk of voltage arcing!
⇒
If wires instead of contact rails are used to connect
the supply unit, the connections have to be correctly
made (see page 13-1 onward).
Design
Tightening Torque
DC Bus Wiring