Manual

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Publication 20P-IN055A-EN-P

PowerFlex® DC Drive

Frame D Field SCR Module

Installation Instructions

What This Kit Includes

• Field SCR module

• Gate lead cables (2)

• Screws and washers (2)

• 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

• Hexalobular 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 (8 pages)

PAGE 1
PowerFlex® DC Drive Frame D Field SCR Module Installation Instructions 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
What You Need to Do To install the field SCR module: ❐ Step 1: ❐ Step 2: ❐ Step 3: ❐ Step 4: ❐ Step 5: ❐ Step 6: ❐ Step 7: Step 1: Remove Power from the Drive Remove power from the drive Remove the protective covers Remove the field board Remove the existing field SCR module Install the new field SCR module Install the field board Replace the protective covers and document the change ATTENTION: Remove power before making or breaking cable connections.
PAGE 3
Important: A communication cable connects the HIM assembly to the Control board mounted on the control pan. Therefore, the bottom control pan cover and HIM assembly cannot be fully removed from the drive until the cable is disconnected. Step 4 details this connection. 3. Loosen, but do not remove, the four hexalobular screws that secure the bottom control pan cover to the drive, then slide the cover up and off the drive chassis (see Figure 1 below).
PAGE 4
4. Disconnect the HIM communication cable from the connector on the upper right corner of the Control board and remove the bottom cover. Pull tabs out to disconnect cable. Step 3: Remove the Field Board 1. Loosen the eight hexalobular screws that secure the protective plastic cover to the control pan and remove the cover.
PAGE 5
Important: Mark all connections and wires before removal to avoid incorrect wiring during reassembly. 2. Disconnect the cables from connector XFCD and X3 on the field board (see Figure 2 below for location). 3. Remove the eleven hexalobular screws that secure the field board to the control EMI shield and remove the board. Figure 2 Field Circuit Board Layout Note: Field board for 70A field supply shown. 1 X3 XFCD T25 TA_1 Tightening torque: 2.5…4.
PAGE 6
Step 4: Remove the Existing Field SCR Module 1. Disconnect the gate lead wires from the connectors at the top of the SCR module.
PAGE 7
2. Remove the two screws and washers that secure the SCR module to the heatsink and remove the module. Figure 4 Field SCR Module P2 Tightening torque: 2.5…5.0 N•m (22…44 lb•in) Step 5: Install the New Field SCR Module Install the new field SCR module in reverse order of removal as detailed in Step 4: Remove the Existing Field SCR Module above. • Apply thermal grease to the bottom of the field SCR module before securing it to the heatsink.
PAGE 8
Step 7: Replace the Protective Covers and Document the Change 1. Replace the protective covers in the reverse order of removal as described in Step 2: Remove the Protective Covers on page 2. 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.