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Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control User Manual

Page 402

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6-58

Component Definition and Maintenance

7000L-UM300I-EN-P – June 2013

7000 “C” Frame


120V, single phase

AC

FAIL

6

20V

UPS

2kVA

UPS

on

bypass

batt low

on

batt

AC

FAIL

DC

FAIL

Pumps

Printer

PanelView

Relays/contactor

DC/DC

CONVERTER

C hold-up

+24V - I/O

+5V - LOGIC
+/-15V - LOGIC
+/-24V - LEM

+12V - SCANPORT

+15V - TACH

+15V - SPGDB TEST

Pump supply

is XXXV,

3 phase

3 phase

transformer

XXXV/208V

3 phase,4 wire

XXXVAC

AC/DC

CONVERTER

56 VDC

@

300W

AC/DC

CONVERTER

56V DC

@

1500W

20 V

ISOLATED

GATE DRIVER

POWER SUPPLY

DC/DC

FAIL

DC/DC

WARN

SPGDB P/S

FAIL

DC

FAIL

(Optional)


Figure 6.46 – Standard PowerFlex 7000L Control Power Distribution (with UPS option)




To reduce the size of UPS needed, the loads on the AC/DC converters
are separated into two distinct loads: the IGDPS boards and the
DC/DC power supply. The IGDPS load is only needed when the
drive is in the normal operating mode and running the motor. During
interruption of control and medium voltage, the IGDPS load demand
on the AC/DC will be not be required. Only the DC/DC will remain
energized for an extended period of time after loss of control power.
The DC/DC converter will power the main control boards and keeps
them fully functional.