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CABLING AND CONNECTIONS
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6
6.
CABLING AND CONNECTIONS
6.1
Understanding the power unit topology
Figure 6-1 shows the principles for mains and motor connections of the basic 6-pulse drive in frame
sizes FR10 to FR14.
Some units built in frame size FR11 have double input devices and require an even number of
supply cables but an uneven number of motor cables can be used.
Units built in frame size FR12 consist of two power modules and require an even number of supply
and ables. See Figure 6-1 and tables 6-2 and 6-4.
The 12-pulse drives always have a double set of inputs. The motor connection is size dependent as
described above and in Figure 6-1.
M
M
M
ud1011k4.fh11
M
M
M
FR9/10
Single input
Single output
FR11*
Double input*
Single output
FR12
Double input
Double output
Note!
Min cable
length 5m
* FR11 types 0460 6 and 0502 6 have single input terminals
FR13
Single input
Single output
NFE
NFE
NFE
INU
FR14, NX 1500 6
Single input
Double output
NFE
NFE
NFE
INU
INU
FR14
Double input
Double output
INU
INU
NFE
NFE
NFE
NFE
** FR13 units NXP1300 and NXP1450 have three NFE units.
**
Figure 6-1. Topology of mechanical sizes FR10 – FR14, 6-pulse supply
Note! Some options affect the wiring direction and principle for power cables; always check delivery
specific documentation for exact information.
