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Ac/dc power supply – Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine User Manual

Page 237

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Component Definition and Maintenance 4-61

7000 ―C‖ Frame - Marine

7000L-UM302B-EN-P – June 2013

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 for 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 4.47 – AC/DC Converter Power Supply


DC FAIL:

Upon loss of DC output (V outputs ≤ 49 VDC) this output goes
from low to high.