WEG CFW-09HD Series Manual

CFW-09HD LINE

DC LINK

POWER SUPPLY

CFW-09HD Line

Addendum to the
CFW-09 Manual

3

CFW-09HD Line

1. CFW-09 DC LINK POWER SUPPLY – HD LINE

- The CFW-09HD line of variable frequency drives with DC link power supply has the same
characteristics in terms of mechanical installation, functions, programming and performance
as the standard CFW-09 line.

- Up to size 5, it is not necessary to use an HD for a DC link power supply. Just supply a standard
drive by the DC link with an external pre-charge circuit.

- Models sizes 6 and up, have a pre-charge circuit and internal modifications.

2. SIMPLIFIED CFW-09HD BLOCK DIAGRAM

Figure 1 presents the simplified CFW-09HD block diagram, for sizes 6 and up.

I. GENERAL INFORMATION

This addendum has information about the CFW-09HD line variable frequency drive with DC

link power supply.

Addendum to the CFW-09 Manual

Figure 1 – Simplified CFW-09HD block diagram

AC Link

Supply

X1

+UD -UD

X1 U V W PE

R S T

M

3~

13

14

For interlocking with a

contactor winding or

circuit breaker minimum

winding

3X33:1

22

21

A1

A2

2827XC1A:

KA1

F

N

220V Command

Pre-charge Circuit

Pre-charge and Ventilation

Supply

X1 R S T

L1

L3

L2