Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 345)

Rockwell Automation Publication 750-RM002B-EN-P - September 2013 345
Integrated Motion on the EtherNet/IP Network Applications for PowerFlex 755 AC Drives Chapter 6
Ring/Star Topology
Network switches can also be connected into a DLR via an Ethernet/IP tap,
creating a ring/star topology.
It is recommended that a managed switch with a transparent and/or boundary
clock, plus QoS and IGMP protocol support be used for this Network topology.
Although the ControlLogix controller is illustrated, the CompactLogix
controller could also be used.
PowerFlex 755 and Kinetix
7000 Drive Overload Rating
Comparison for Permanent
Magnet Motor Operation The PowerFlex 755 drive can be configured for a normal duty or heavy duty
operation. The heavy duty rating has a lower continuous current rating and
therefore can produce more current during an overload.
The Kinetix 7000 drive overload capability is specific for each power structure.
However, the Kinetix 7000 can produce 100% current at 0 Hz.
With permanent magnet motors, the torque is directly proportional to the
current. Therefore, the overload ratings of the drive to which the motor is
connected provides the torque overload capability of the motor.
PowerFlex 755 PowerFlex 755 PowerFlex 755 PowerFlex 755
PowerFlex 755
1756-EN2T
or
1756-ENxTR
1585J-M8CBJM-x
EtherNet (shielded) Cable
Programming Software
Other EtherNet/IP
Compatible Devices
1783-ETAP
Stratix 8000
Duty Rating 0 Hz 100% 110% 150% 180%
Normal 50% 100% One minute 3 seconds Not applicable
Heavy 65% 75% of normal
duty
– One minute of
normal duty
3 seconds of
normal duty