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Rockwell Automation 1395 DC Drive, 800-1250 Hp, FRN 5.XX-9.30 User Manual

Page 74

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Chapter 4
Installation

4-9

Power Wiring Procedure

The following procedure provides the steps needed to properly perform the
power wiring connections to the 1395 drive.

Using Table 4.D, verify that the motor field is compatible with the DC field
voltage output of the drive.

Table 4.D
Standard Field Voltage Output

AC Incoming
Voltage to Drive

230VAC

460VAC

660VAC

DC Supply Output
Voltage to Field

150VDC

300VDC

300VDC

1. Connect the motor armature and field leads to produce proper direction

of motor rotation. Table 4.E lists the connections required to produce
counterclockwise rotation of the motor when viewed from the
commutator end with a positive speed reference input to the drive.

Table 4.E
Motor Connections for CCW Rotation

Connection

Motor Field

Drive Terminal
Connection

TB7–1
TB7–3

A1
A2

Motor Lead

F1(+)
F2 (–)

A1 (+)
A2 (–)

Motor Armature

2. The 1395 is supplied with semi-conductor fuses for bridge protection.

A line reactor must be used between the main distribution system and
the drive. An isolation transformer can also be used. Refer to
Figure 4.4 for AC input wiring at the main fuses.

Connect incoming three-phase AC line power to the AC Input Circuit
Breaker.