beautypg.com

Dc/dc power supply (cont.), Printed circuit board replacement – Rockwell Automation 7000A PowerFlex Medium Voltage Drive (A-Frame) - Classic Control User Manual

Page 384

background image

6-80

Component Definition and Maintenance

7000A-UM150F-EN-P –June 2013

7000 “A” Frame

DC/DC Power Supply (cont.)

DC Power

good indicator light

M6 (H.H.T.R.S.)

VIEW “1”

VIEW “2”

M4 (P.H.M.S.) and

nylon shoulder washer

Mounting Plate

Black Insulation

Part ID Label

DC/DC

Power Supply

Figure 6.63 – Replacement of DC/DC power supply

The replacement of printed circuit boards should be handled in a careful
and deliberate manner.


There are some basic precautions that should be taken. They include the
following:
 Remove all power to the drive.
 Do not remove the replacement board from the anti-static bag until

necessary.

 Use anti-static wrist strap, grounded in the Low Voltage Control

Section


There are no direct screw/terminal connections on any of the Low Voltage
circuit boards. All wire/terminal connections are made on plugs that plug
into the circuit boards. This means that changing boards only requires the
removal of the plugs, minimizing the chance of mistakes when
reconnecting all of the wiring.

Printed Circuit Board

Replacement