Manual

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Installation Instructions

PowerFlex

DC Drive - Frame B Field SCR

Module

What This Kit Includes

• Field SCR module

• Two screws and washers

• Two gate leads

• Thermal grease

• Static strap

Important:It is highly recommended that the Field circuit board and Field

Dual Diode module be replaced when replacing the Field SCR

module. The Field circuit board and Field Dual Diode module

are sold as separate spare part kits.

Tools That You Need

• Phillips

screwdriver

• Flathead screwdriver

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.

Summary of content (14 pages)

PAGE 1
Installation Instructions PowerFlex® DC Drive - Frame B Field SCR Module 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.
PAGE 2
PowerFlex® DC Drive - Frame B Field SCR Module What You Need to Do The Field SCR module is located below the Field board, which is below the Control board and Control EMI shield and the Pulse Transformer and Switching Power Supply boards in the upper left corner of the drive chassis. Field board and Field SCR module Pulse Transformer board Note: Drive shown with front covers removed and Control EMI shield lowered.
PAGE 3
PowerFlex® DC Drive - Frame B Field SCR Module Step 1: Remove Power from 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.
PAGE 4
PowerFlex® DC Drive - Frame B Field SCR Module Step 2: Remove the Protective Covers 1. Disconnect the DPI cable from the HIM assembly (if present). 2. Loosen, but do not remove, the screws that secure the bottom cover to the drive, then slide the cover down and off the drive chassis. = Disconnect DPI cable Tightening torque: 1.5 N•m (13.3 lb•in) 3. Loosen, but do not remove, the screws that secure the top cover to the drive, then slide the cover up and off the drive chassis.
PAGE 5
PowerFlex® DC Drive - Frame B Field SCR Module 5 4. 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. Step 3: Remove the Pulse Transformer and Switching Power Supply Boards Note: The Switching Power Supply circuit board is located on the back of the Pulse Transformer circuit board. You must remove both boards in order to replace the Field circuit board. 1.
PAGE 6
PowerFlex® DC Drive - Frame B Field SCR Module 3. Remove the cable from connector XTA on the Pulse Transformer board. 4. Remove the plug-in terminals from the Control power block on the Pulse Transformer board. = Remove cable Remove plug-in terminals 5. For Pulse Transformer boards with an armature voltage feedback terminal block, FIR2-XX, rev. “N” and higher, remove the connector from XCD_IO on the lower left corner of the board.
PAGE 7
PowerFlex® DC Drive - Frame B Field SCR Module 7 6. Carefully disconnect the cables from connectors XA, XR and XFCD at the top of the Control board. Disconnect cables 7. Loosen the two captive screws at the top of the Control EMI shield and lower the shield. Important: If the drive is not in a vertical position, the Control EMI shield will not remain open without a means of restraint. Loosen screws 8.
PAGE 8
PowerFlex® DC Drive - Frame B Field SCR Module 9. Remove the cable from connector XV on the Switching Power Supply board. Switching Power Supply board Remove cable from XV Front of drive Pulse Transformer board 10. Remove the cables from connectors X3, X4 and XP on the Pulse Transformer board.
PAGE 9
PowerFlex® DC Drive - Frame B Field SCR Module 9 11. Remove the ground connection at the left side of the Pulse Transformer board.
PAGE 10
PowerFlex® DC Drive - Frame B Field SCR Module 12. Remove the appropriate gate leads: – For non-regenerative drives, remove each pair of (orange and yellow) gate lead cables from connectors KG01…KG06 and push each lead through the appropriate opening in the board. – For regenerative drive, remove each pair of (orange and yellow) gate lead cables from connectors KG01…KG06 and KG1…KG6 and push each lead through the appropriate opening in the board.
PAGE 11
PowerFlex® DC Drive - Frame B Field SCR Module 13. Remove the seven screws that secure the Pulse Transformer and Switching Power Supply boards to the stand-offs on the drive chassis and remove the boards from the drive. Note: Regenerative Drive Shown.
PAGE 12
PowerFlex® DC Drive - Frame B Field SCR Module Step 4: Remove the Field Board and Existing Field SCR Module 1. Remove the wires from connectors UF, UF1, VF and VF1. 2. Remove the six screws and washers that secure the Field board to the Field SCR and Dual Diode Modules and remove the Field board. = Remove wires Remove screws and washers Remove screws and washers 3. Remove the two screws and washers that secure the existing Field SCR module to the heatsink and remove the module from the drive.
PAGE 13
PowerFlex® DC Drive - Frame B Field SCR Module Step 5: Install the Field Board and New Field SCR Module 13 Install the Field board and new Field SCR module in reverse order of removal as detailed in Step 4: Remove the Field Board and Existing Field SCR Module on page 12. • Apply thermal grease to the bottom of the SCR module before securing it to the heatsink.
PAGE 14
Step 7: Replace the Protective Covers and Documenting the Change 1. Replace the protective covers in the reverse order of removal as described in Step 2: Remove the Protective Covers on page 4. 2. Install DPI cable (if present). 3. Record the installation of the new Field SCR module and date of installation on the Field Installed Option label on the side of the drive (as shown below). Related Documentation Allen-Bradley publications are available on the internet at www.rockwellautomation.com/literature.