
Rockwell Automation Publication 2198-UM002E-EN-P - February 2018
21
Start
Chapter 1
Extended DC-bus Configuration
In this example, two drive clusters in the same cabinet are connected by the
same 450…750V DC bus voltage. Kinetix 5700 capacitor modules provide
connection points for the DC bus at the end of cluster 1 and the beginning of
cluster 2. The extension module is needed only when the DC-bus system
current exceeds 100 A and can support up to 200 A maximum external DC-
bus current.
Figure 4 - Extended DC-bus Installation
MOD
NET
MOD
NET
MOD
NET
MOD
NET
2
1
1
1
4
I/O
I/O
6
5
10
2
1
2
1
2
1
1
I/O-A
6
5
10
1
I/O-B
6
5
10
1
I/O-A
6 1
I/O-B
6
5
10 5
10
UFB
UFB-A
UFB-B
UFB-A
UFB-B
D+
D-
D+
D-
D+
D-
MF-A
MF-B
MF-A
MF-B
D+
D-
MBRK
+
-
MOD
NET
2
1
1
4
I/O
MOD
NET
2
1
1
4
I/O
MOD
NET
MOD
NET
2
1
2
1
1
I/O-A
6
5
10
1
I/O-B
6
5
10
1
I/O-A
6 1
I/O-B
6
5
10 5
10
UFB-A
UFB-B
UFB-A
UFB-B
D+
D-
D+
D-
MF-A
MF-B
MF-A
MF-B
D+
D-
MOD
NET
2
1
1
I/O-A
6 1
I/O-B
6
5
10 5
10
UFB-A
UFB-B
D+
D-
MF-A
MF-B
D+
D-
MOD
NET
MOD
NET
2
1
2
1
1
I/O-A
6
5
10
1
I/O-B
6
5
10
1
I/O-A
6 1
I/O-B
6
5
10 5
10
UFB-A
UFB-B
UFB-A
UFB-B
D+
D-
D+
D-
D+
D-
MF-A
MF-B
MF-A
MF-B
D+
D-
MOD
NET
2
1
1
I/O-A
6 1
I/O-B
6
5
10 5
10
UFB-A
UFB-B
D+
D-
MF-A
MF-B
D+
D-
MOD
NET
2
1
1
I/O-A
6 1
I/O-B
6
5
10 5
10
UFB-A
UFB-B
D+
D-
MF-A
MF-B
D+
D-
MODULE
STATUS
MOD
DC BUS
MOD
DC BUS
MODULE
STATUS
D+
D-
MF
Kinetix 5700 Servo Drive Cluster 1
(front view)
324…528V AC
Three-phase
Input Power
Bonded Cabinet
Ground Bus
2198-DB290-F
AC Line Filter
Kinetix 5700 Extended Servo Drive Cluster 2
(front view)
DC-bus Extension
Shared DC-bus and 24V DC
Control Power
Line Disconnect
Device
Circuit
Protection
Magnetic (M1)
Contactor
DC-bus Extension
1321-3R
x
80-B
Line Reactors
(required components)
Magnetic Contactor (M1) Control String
2198-P208 DC-bus Power Supplies
Single-axis
Inverter
Dual-axis
Inverters
Capacitor
Module
Extension
Module
Capacitor
Module
Extension
Module
Dual-axis Inverters
Bulletin 2198 Shared-bus Connection System
(24V shared-bus connection system is optional)
IMPORTANT
When two or three DC-bus power supplies are wired together in the same
drive cluster, they must all be catalog number 2198-P208.