Ac/dc power supply, Description – Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) User Manual
Page 304
5-62
Component Definition and Maintenance
7000A-RM001A-EN-P – January 2011
7000 “A” Frame
AC/DC Power Supply
The load demands on the AC/DC converters are the DC/DC converter and
up to six IGDPS modules. The DC/DC is a fixed load; however, the
quantity of IGDPS modules will vary depending upon the drive
configuration.
Description
The AC/DC power supply accepts single phase voltage and produces a
regulated 56V DC output for the DC/DC power supply and the HV
IGDPS modules that power the SGCTs. The input and output voltages are
monitored and fail signals are annunciated upon either voltage going
below a pre-set level.
AC/DC
Power Supply
56V,1000W or 1500W
Single phase
95-265V ac
47-63 Hz
0.98PF @1000W or
0.98PF@1500W
DC/DC
Power
Supply
HV IGDPS
Power
Supply
DC Fail
Figure 5.47 – AC/DC Converter Power Supply
DC FAIL:
Upon loss of DC output (V outputs ≤ 49 VDC) this output goes
from low to high.
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