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Power wiring, Ac input wiring – Rockwell Automation 20D PowerFlex 700H and 700S Frame 9...14 Drives User Manual

Page 97

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Rockwell Automation Publication PFLEX-IN006E-EN-P - July 2013

97

Frame 11 Mechanical Installation

Chapter 7

Power Wiring

AC Input Wiring

The table below identifies which frame 11 drives contain only one rectifying
module and which frame 11 drives contain two rectifying modules. Drives with
one rectifying module contain only one set of input power terminals. Drives with
two parallel rectifying modules contain two sets of input power terminals--you
must supply power to both sets of input terminals on these drives. There are
several methods for accomplishing this. Each of these methods is shown below.

Figure 33 - AC Wiring Example: Two Fuses per Phase

Voltage Class

Amps

Number of
Rectifiers

400/480V AC Input

590

2

650

2

730

2

600/690V AC Input

460

1

502

1

590

2

IMPORTANT

Parallel wiring must have the same cable dimensions, type and routing. Non-
symmetrical wiring may cause unequal loading between the converters and
reduce the drive’s ability to deliver current to the motor.

1L1

1L2

1L3

2L1

2L2

2L3

L1

L2

L3

AC Input Power Terminals Inside Drive

AC Input Power Wiring, Fuses, and Disconnect

Device Provided by Customer

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