Ac Input Power Diagrams - Allen-Bradley 8720MC-RPS065 User Manual

AC Input Power Diagrams

This section provides input wiring diagrams for 8720MC-RPS065 and
8720MC-RPS190 units in all possible configurations.
ATTENTION: The 8720MC-RPS units use high-speed switching elements
that generate noise during switching. To avoid influence of such noise, use
ground wire that is as thick and short as possible. Refer to the System Design
for Control of Electrical Noise Reference Manual, publication GMC-RM001.
ATTENTION: It is required to install a power disconnecting device, a main
magnetic contactor, and a line reactor in the AC input power line. In addition,
an EMC line filter is required to meet CE requirements. Failure to observe
these precautions could result in damage to equipment.
ATTENTION: When a thyristor or similar equipment is connected to the AC
input power line, large distortion can be produced in the AC input power
voltage and the 8720MC-RPS unit may not operate normally. Remove such
large distortion from the AC input power voltage.
The capacity (rating) of the 8720MC-RPS unit depends on the number of
units connected in parallel (for example, single unit, two paralleled units, or
three paralleled units). The relation between the number of paralleled units
and the unit capacity is shown in the
page 110.
ATTENTION: The phases of AC input power to the main power supply
terminals (L1, L2 and L3), the control power terminals (L1_AUX, L2_AUX,
and L3_AUX), and the polarity of DC-bus output (P and N) of all the
connected units must be the same. For paralleled units, the phases of control
power L1_AUX, L2_AUX, and L3_AUX for the follower units must be the
same as those for the leader unit. Failure to observe this precaution could
result in equipment damage or personal injury.
Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018
Connect the 8720MC-RPS Unit
Technical Specifications table on
Chapter 5
47