Nord Drivesystems SK 510P, Руководство с инструкциями по установке

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2 Assembly and installation
BU 0600 en-3221 47
PE U V W +B -B -DC
PE L3 L2 L1
L1 / L
L2 / N
L3 / -
PE
M
3~
PE U V W +B -B -DC
PE L3 L2 L1
M
3~
PE L3 L2 L1
Input/
feedback unit
For information on
connection and
protection, as well as the
necessary accessories,
please consult the
manufacturer of the
input/feedback unit.
+ -
Figure 4: Diagram of a DC coupling with an input/feedback unit
The following points must be taken into account in relation to a DC supply:
1 Use a connecting cable which is as short as possible between the DC bus and the devices to be
connected. The connection and protection of the devices in the DC circuit must be carried out
for cable protection and with the maximum cross-section of the device.
2 The link circuits of the individual frequency inverters must be protected with suitable fuses.
3 The frequency inverters only obtain their supply via the link circuit. Electrical isolation is carried
out via the power circuit breakers which must be provided in the supplies to the devices.
4 Set P538 = 4 "DC Supply".