Allen-Bradley PowerFlex DC Drive - Frame A SCR Modules Installation Instructions
Allen-Bradley PowerFlex DC Drive - Frame A SCR Modules are designed for use with drives that have a Power Traces circuit board. These modules are compatible with a range of drive current ratings and AC input voltages. The kit includes SCR modules, mounting screws and washers, gate leads, thermal grease and a static strap. This device ensures reliable operation and helps avoid potential electric shock hazards. The instructions provide a step-by-step guide for installation and replacement.
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Installation Instructions
PowerFlex® DC Drive - Frame A SCR Modules
for Drives with a Power Traces Circuit Board
What This Kit Includes • SCR modules (3 for non-regenerative drives, 6 for regenerative drives)
• Mounting screws and washers (6 for non-regenerative drives, 12 for
regenerative drives)
• Gate leads (6 for non-regenerative drives, 12 for regenerative drives)
• Thermal Grease
• Static strap
Important: The SCR Modules supplied with this kit should only be used in
the following Frame A drives:
! 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.
230V AC Input 460V AC Input
Drive Current
Rating Code DC Amps
AC Line
Amps HP
Drive Current
Rating Code DC Amps
AC Line
Amps HP
7P0 7 5.7 1.5 4P1 4.1 3.3 2
9P0 9 7.4 2 6P0 6 4.9 3
012 12 9.8 3 010 10 8.2 5
020 20 16 5 014 14 11.4 7.5
029 29 24 7.5 019 19 15.5 10
038 38 31 10 027 27 22.1 15
055 55 45 15 035 35 28.6 20
045 45 36.8 25
052 52 42.5 30
PowerFlex® DC Drive - Frame A SCR Modules
for Drives with a Power Traces Circuit Board
What This Kit Includes • SCR modules (3 for non-regenerative drives, 6 for regenerative drives)
• Mounting screws and washers (6 for non-regenerative drives, 12 for
regenerative drives)
• Gate leads (6 for non-regenerative drives, 12 for regenerative drives)
• Thermal Grease
• Static strap
Important: The SCR Modules supplied with this kit should only be used in
the following Frame A drives:
! 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.
230V AC Input 460V AC Input
Drive Current
Rating Code DC Amps
AC Line
Amps HP
Drive Current
Rating Code DC Amps
AC Line
Amps HP
7P0 7 5.7 1.5 4P1 4.1 3.3 2
9P0 9 7.4 2 6P0 6 4.9 3
012 12 9.8 3 010 10 8.2 5
020 20 16 5 014 14 11.4 7.5
029 29 24 7.5 019 19 15.5 10
038 38 31 10 027 27 22.1 15
055 55 45 15 035 35 28.6 20
045 45 36.8 25
052 52 42.5 30
2 PowerFlex® DC Drive - Frame A SCR Modules for Drives with a Power Traces Circuit Board
Tools That You Need • Phillips ® screwdriver
• Flathead screwdriver
• Nut driver or wrench for hex stand-offs
• Torque wrench
Phillips ® is a registered trademark of Phillips Screw Company.
What You Need to Do The SCR modules are located on the heat sink of the drive chassis, below all
circuit boards and components. To install the SCR modules:
❐ 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 Pulse Transformer and Switching Power Supply
boards
❐ Step 5: Remove the Power Traces board and AC Current
Transducers
❐ Step 6: Remove the existing SCR modules
❐ Step 7: Install the new SCR modules
❐ Step 8: Install the Power Traces board and AC Current Transducers
❐ Step 9: Install the Pulse Transformer and Switching Power Supply
boards
❐ Step 10: Install the Control EMI Shield and Control board
❐ Step 11: Replace the protective covers and document the change
Tools That You Need • Phillips ® screwdriver
• Flathead screwdriver
• Nut driver or wrench for hex stand-offs
• Torque wrench
Phillips ® is a registered trademark of Phillips Screw Company.
What You Need to Do The SCR modules are located on the heat sink of the drive chassis, below all
circuit boards and components. To install the SCR modules:
❐ 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 Pulse Transformer and Switching Power Supply
boards
❐ Step 5: Remove the Power Traces board and AC Current
Transducers
❐ Step 6: Remove the existing SCR modules
❐ Step 7: Install the new SCR modules
❐ Step 8: Install the Power Traces board and AC Current Transducers
❐ Step 9: Install the Pulse Transformer and Switching Power Supply
boards
❐ Step 10: Install the Control EMI Shield and Control board
❐ Step 11: Replace the protective covers and document the change
PowerFlex® DC Drive - Frame A SCR Modules for Drives with a Power Traces Circuit Board 3
Step 1: Remove Power
from the Drive
1. Remove and lock-out all incoming power to the drive.
Step 2: Remove the
Protective Covers
1. Remove the two screws that secure the power terminal cover to the
drive and slide the cover down and off the drive chassis.
! 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
O
I
Step 1: Remove Power
from the Drive
1. Remove and lock-out all incoming power to the drive.
Step 2: Remove the
Protective Covers
1. Remove the two screws that secure the power terminal cover to the
drive and slide the cover down and off the drive chassis.
! 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
O
I
4 PowerFlex® DC Drive - Frame A SCR Modules for Drives with a Power Traces Circuit Board
2. Disconnect the DPI cable from the HIM assembly (if present).
3. Remove the screws that secure the bottom cover to the drive, then slide
the cover down and off the drive chassis.
4. 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.
5. 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 5 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.
2. Disconnect the DPI cable from the HIM assembly (if present).
3. Remove the screws that secure the bottom cover to the drive, then slide
the cover down and off the drive chassis.
4. 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.
5. 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 5 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.
5
6
7
8
9
10
11
12
13
14
15
16
17
18
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Key Features
- SCR module replacement kit
- Power Traces circuit board compatible
- ESD sensitive parts
- Thermal grease included
- Compatible with various drive current ratings
- Compatible with 230V and 460V AC input
Related manuals
Frequently Answers and Questions
What is the purpose of this kit?
This kit is designed for replacing the SCR modules in Allen-Bradley PowerFlex DC Drives that have a Power Traces circuit board.
What is the difference between non-regenerative and regenerative drives?
The manual specifies different components and numbers of SCR modules depending on whether the drive is non-regenerative or regenerative. Specifically, non-regenerative drives use 3 SCR modules, while regenerative drives use 6.
What is the tightening torque for the Power Traces board connections?
The manual specifies a tightening torque of 2.5…4 N•m (22…35.4 lb•in) for the Power Traces board to SCR modules connections.
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