Allen-Bradley 8720MC-RPS065 - Input Power Configurations

Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018 11
8720MC-RPS Regenerative Power Supply Overview Chapter 1
Input Power Configurations
These 8720MC regenerative power supply (RPS) examples in common-bus
configurations show DC-bus regenerative power and full-line power.
AC Input and Regenerative Power Configuration
In this configuration the servo drive provides motoring power and the RPS
unit receives regenerative power.
Figure 1 - 8720MC-RPS065 Unit with AC Input and Regenerative Power Supply
R
E
G
E
N
E
R
A
T
IV
E
P
O
W
E
R
S
U
P
P
LY
REGEN
ERA
TIVE POW
ER SUPPL
Y
8720
8720
MC
MC
RST
PRG
ENT
READY
READY
FAULT
FAULT
PROGRAM
PROGRAM
kW
kW
V
A
DC Bus
8720MC-RPS065BM-HV2
Regenerative Power Supply
8720MC-LRxx
Line Reactor
Three-phase
Input Power
8720MC-VA-B Varistor
Included with
8720MC-RPS065BM-HV2.
8720MC-HF-B2 Harmonic Filter
Included with
8720MC-RPS065BM-HV2.
Magnetic
Contactor
8720MC-RFI80
AC Line Filter
(required for CE)
Circuit
Protection
Three-phase
Input Power
Magnetic
Contactor
Circuit
Protection
Line Reactor
Regenerative
Power Only
AC Input Power to
Servo Drive
AC Line Filter
(required for CE)
DC-bus Regenerative
Power from Servo Drive
Servo Drive