Allen-Bradley PowerFlex Manuale utente

Installation Instructions

PowerFlex®DC Drive - Frame A Switching

Power Supply Circuit Board

What This Kit Includes •Switching Power Supply circuit board

•16 Pin ribbon cable

•Four screws with captive lock washers

•One plastic stand-off

•One plastic screw

•One plastic nut

•Static strap

Tools That You Need •Phillips®screwdriver

•Flathead screwdriver

•Nut driver or wrench for hex stand-offs

Phillips®is a registered trademark of Phillips Screw Company.

ATTENTION: Only qualified personnel familiar with DC

drives and associated machinery should plan or implement the

installation, start-up and subsequent maintenance of the system.

Failure to comply may result in personal injury and/or equipment

damage.

ATTENTION: To avoid an electric shock hazard, ensure that all

power to the drive has been removed before performing the

following.

ATTENTION: This drive contains ESD (Electrostatic

Discharge) sensitive parts and assemblies. Static control

precautions are required when installing, testing, servicing or

repairing this assembly. Component damage may result if ESD

control procedures are not followed. If you are not familiar with

static control procedures, reference A-B publication 8000-4.5.2,

“Guarding Against Electrostatic Damage” or any other

applicable ESD protection handbook.

2PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board

What You Need to Do To install the Switching Power Supply board:

❐ Step 1: Remove power from the drive

❐ Step 2: Remove the protective covers

❐ Step 3: Remove the Control EMI Shield and Control board

❐ Step 4: Remove the existing Pulse Transformer and Switching Power

Supply boards

❐ Step 5: Install the existing Pulse Transformer board and new

Switching Power Supply board

❐ Step 6: Install the Control EMI Shield and Control board

❐ Step 7: Replace the protective covers and document the change

Step 1: Remove Power

from the Drive

1. Remove and lock-out all incoming power to the drive.

ATTENTION: Remove power before making or breaking cable

connections. When you remove or insert a cable connector with

power applied, an electrical arc may occur. An electrical arc can

cause personal injury or property damage by:

•sending an erroneous signal to your system’s field devices,

causing unintended machine motion

•causing an explosion in a hazardous environment

Electrical arcing causes excessive wear to contacts on both the

module and its mating connector. Worn contacts may create

electrical resistance.

L1 L2 L3

PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board 3

Step 2: Remove the

Protective Covers

1. Disconnect the DPI cable from the HIM assembly (if present).

2. Remove the screws that secure the bottom cover to the drive, then slide

the cover down and off the drive chassis.

3. Press in on the sides at the bottom edge of the top cover and at the same

time pull the cover toward you to pull it partially off the drive chassis.

4. At the top of the drive, pull the cover forward, away from the drive, until

the pins fit in the keyhole in the top of the cover, then carefully lift the

cover off of the drive chassis.

Important:The HIM assembly is connected via a cable to the

Control board and therefore will not pull free from the

drive until disconnected. See page 4 for instructions.

Disconnect DPI cable

Tightening torque:

1.5 N•m (13.3 lb•in)

When metal pin fits in keyhole,

lift cover off drive chassis.

3. 4.

4PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board

5. Disconnect the HIM Communication cable from the connector on the

upper right corner of the Control board and set the cover aside.

Pull tabs out

to disconnect

cable.

PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board 5

Step 3: Remove the

Control EMI Shield and

Control Board

1. Carefully disconnect the cables from connectors XFCD, XA and XR on

the Control board.

2. Remove all appropriate I/O and control wiring including:

–digital and analog I/O plug-in terminal blocks on the Control board

–analog tachometer terminal block on the Control board

–encoder terminal block on the Control board

–cable shields that are grounded to the Control EMI shield

–I/O terminal blocks on the I/O Expansion board

–I/O terminal blocks on the 115V AC to 24V DC I/O Converter board

Disconnect

cables

XFCD, XA,

and XR

Disconnect I/O

and control

wiring

Note: Control board

shown with

Communication Adapter

and optional boards

removed.

6PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board

3. Remove the five screws that secure the ground wire (in the lower left

corner) and Control EMI shield to the chassis and slide the Control EMI

shield and Control board up and out of the drive.

Important: Be careful when removing the EMI shield not to pull free

any of the gate leads or other cables on the Pulse

Transformer circuit board below the EMI shield.

Remove

screws

Remove

screw and

ground wire

PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board 7

Step 4: Remove the

Existing Pulse Transformer

and Switching Power Supply

Boards

Note: The Switching Power Supply circuit board is mounted on the back of

the Pulse Transformer circuit board. You must remove both boards in order

to replace the Switching Power Supply board.

1. Remove the air flow plate from the top of the drive:

–For 38A and 55A drives @ 230V AC input and 35A, 45A, and 52A

drives @ 460V AC input, remove the four screws that secure the

slotted air flow plate to the top of the drive, remove the fan cable from

connector XV on the Switching Power Supply board and remove the

plate and connected fan.

=Remove screws

8PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board

–For all other size drives, remove the two screws that secure the slotted

air flow plate to the top of the drive and remove the plate.

Important: Mark all connections and wires before removal to avoid

incorrect wiring during reassembly.

Air flow plate

Remove screw

PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board 9

Figure 1 Pulse Transformer Circuit Board Layout

XSW1

1XSW

TR2 TR1

0V1

T04

T01

T05T02 T06T03

KG04

KG01

KG05

KG02

KG06

KG03

KG4

KG1

KG5

KG2

KG6

KG3

XTA

UCVW

7879 35 36 75 76 U2 V2

XSW1

XSW

TR2 TR1

XCD_IO

TO1 TO4 TO2 TO5 TO3TO6

KGO1 KGO4

KGO2

KGO5

TO1 TO4 TO2

KGO1 KGO4

KGO2

KGO5 KGO3KGO6

T5 T3T6T1 T4 T2

KG1 KG4 KG2 KG5 KG3KG6

XTA

7879 35 36 75 76 U2 V2

Components shown within dashed lines are only contained

on the Pulse Transformer board for regenerative drives.

FIR1-XX rev. “P” and lowerFIR1-XX rev. “Q” and higher

10 PowerFlex® DC Drive - Frame A Switching Power Supply Circuit Board

2. Remove the plug-in control power terminal block from the Pulse

Transformer circuit board (refer to Figure 1 on page 9 for location).

3. Remove the cables from connectors X3, X4 and XP at the top of the

Pulse Transformer board (refer to Figure 1 on page 9 for location).

Note: Connector X4 contains a jumper for drives without a fan - leave in

place.

Remove

plug-in

terminal

block

Remove cables from X3, X4 and XSW

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