Rockwell Automation 20Y PowerFlex Active Front End - Manual (Page 23)

Rockwell Automation Publication 20Y-UM001E-EN-P - July 2014 23
AFE in IP20 2500 MCC Style Enclosure—Installation/Wiring Chapter 1
Frame 13
The following figure shows a basic one-line diagram for an AFE Frame 13 in a
IP20 2500 MCC Style enclosure. The main component sections consist of the
following items:
• AC Line Switchgear consisting of the input circuit breaker (Q0), fuses
(F1.1-F1.3), and input contactor (K1)
• LCL Filter (L1)
• Precharge Circuit
• AFE power structure (U1) with AFE control assembly
• DC fuses (F2.1…F2.6)
Figure 7 - Basic One-line Diagram for an AFE Frame 13 in IP20 2500 MCC Style Enclosure
DC Bus
Output L1
3 Phase
AC Input
L2
L3
PowerFlex
Active Front End System
Precharge
Circuit
R6.1
+
-
AC Line Switchgear LCL Filter (L1) AFE
Power Structure (U1)
DC
Fuses
U2
V2
W2
C1
C2
C3
C4
C5
C6
U1
V1
W1
F2.1
F2.2
F2.3
F2.4
F2.5
F2.6
Input
Contactor
K1 Fuses
F1.1-F1.3
Input
Breaker
Q0
Precharge
Contactor
Precharge
Fuses
F5
K6
DC+
DC-
W
PE
PE
DC+
DC-
V
PE
DC+
DC-
U
PE