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Introduction
1-1
C
HAPTER
1
Introduction
This instruction manual describes how to install and configure the optional Enhanced
Field Supply kit used by FlexPak 3000 DC Drives. The kit can be installed in FlexPak
3000 drives rated at 3 HP to 600 HP @ 460 VAC (1.5 HP to 150 HP @ 230 VAC). It
replaces the Standard Field Supply (P/N 610273-14R) already installed on 3 HP to
125 HP @ 460 VAC (1.5 HP to 60 HP @ 230 VAC) drives and the Field Current
Regulator (P/N 707973-10R, S, or T on 150 HP to 600 HP @ 460 VAC (75 HP to 150
HP @ 230 VAC) drives.
When installed in your drive, the Enhanced Field Supply kit provides you with greater
control over the drive’s field output, allowing you to match the rated field voltage of the
DC motor required for your application. For example, the Enhanced Field Supply
enables the drive to provide a 240 volt field to a motor from a 230 volt line. (See
chapter 6, Modifying the Drive Configuration, for more information.)
Two versions of the Enhanced Field Supply kit are available. They differ according to
the current rating. Each kit is supplied as an assembly that includes the Enhanced
Field Supply board and an attached wiring harness, as well as replacement fuses,
fuse labels, and mounting hardware. See figure 1.1 for an illustration of the Enhanced
Field Supply board. Enhanced Field Supply kit contents are shown in table 1.1.
Table 1.1 – Current Ratings and Model Numbers for the Enhanced Field Supply Kit
Kit Model
Number
Current
Rating
Part Number
Description
Quantity
923FK0101
10
707973-15S
Enhanced Field Supply Board
1
64676-30M
Field Input Fuses (25 A, 600 V)
3
179540
Fuse Rating Label
4
D2-3413-1
Instruction Manual
1
923FK0201
20
707973-15R
Enhanced Field Supply Board
1
64676-30M
Field Input Fuses (25 A, 600 V)
3
179540
Fuse Rating Label
4
D2-3413-1
Instruction Manual
1