Rockwell Automation SA3100 AutoMax Distributed Power System User Manual
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Overview of the AutoMax Distributed Power System
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2.4.4 SA3100 Drives
SA3100 drives are rated from 1 to 800 HP with input voltages from 230 to 575 VAC or
from 310 to 775 VDC (common bus). They are supplied in an enclosure for
stand-alone operation or open-chassis for mounting within a suitable user-supplied
enclosure. Several types of Encoder/Resolver feedback devices are available. An
interface for Flex I/O is also provided. The SA3100 drive system is shown in
figure 1.5.
On SA3100 drives the PMI Regulator is mounted inside the Power Module. The PMI
Regulator contains both the drive’s regulator circuitry and its communication interface
to the UDC module. The SA3100 PMI Regulator consists of a large motherboard and
a smaller Resolver & Drive I/O board that mounts on top of the motherboard. The
motherboard contains the PMI processor, AC power technology circuitry, UDC
interface, metering ports, status LEDs, and Flex I/O interface. See figure 2.7.
As with other DPS drives, the SA3100 operating system contains built-in diagnostics
to provide warning and fault detection. Diagnostics are run continuously by the PMI to
detect problems like over temperature, DC bus overvoltage/undervoltage, excess
ground currents, IGBT overcurrent, and communication faults.
Figure 2.7 – SA3100 PMI Regulator