PowerFlex 755 Transition Section and Splicing Kit for Floormount Drives and CENTERLINE 2100 Motor Control Centers
Top icPa ge
Introduction, Compatibility1
Additional Resources2
What the Kits Contain2
Remove Power from All Equipment3
Approximate Dimensions4
Preparing the Transition Section5
Joining Drive, Transition Section, and MCC6
Left-side Kit Assembly7
Right-side Kit Assembly14
Specifications25
Introduction
Compatibility
This document explains the recommended procedures that you should use when
joining and splicing a PowerFlex® 755 Floor-mount drive, Frames 8…10, with a
CENTERLINE® 2100 Motor Control Center (MCC).
Before you begin, familiarize yourself with the installation requirements and
recommendations for both the PowerFlex 755 drive and the CENTERLINE
2100 MCC.
The transition section and splicing kit is designed to join together a PowerFlex
755 floor-mount drive and a CENTERLINE 2100 MCC column with or
without 1.5 inch mounting channels.
Diagrams in this publication show the mounting channels installed. Mounting
channels will not be used in all installations.
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
Additional Resources
What the Kits Contain
The following table lists publications that provide general PowerFlex 755 drives
and CENTERLINE 2100 MCC related information.
ResourceDescription
PowerFlex 750-Series AC Drives Installation Instructions,
publication 750-IN001
CENTERLINE 2100 Low Voltage Motor Control Centers
Installation Instructions, publication 2100-IN012
CENTERLINE Motor Control Centers NEMA Type 12 Sealing
Instructions, publication 2100-IN037
Provides detailed information on:
• Installation requirements
• Additional safety requirements
• Drive assembly removal and handling
• Approximate dimensions
Provides detailed information on:
• Installation requirements
• Handling instructions
• Approximate dimensions
Provides detailed information on:
• Sealing NEMA Type 12 structures
You can view or download publications at
http://www.rockwellautomation.com/literature/
.
To order paper copies of technical documentation, contact your local AllenBradley distributor or Rockwell Automation sales representative.
A complete installation requires one transition section and one bus bar splicing
kit. Depending on the catalog number ordered, the kit will be a left-side mount or
a right-side mount relative to the drive. Kits include all joining and splicing
hardware. An IP20, NEMA/UL Type 1 enclosure results when kits are installed
according to these instructions. If a NEMA Type 12 structure is required, follow
the CENTERLINE Motor Control Centers NEMA Type 12 Sealing
Instructions, publication 2100-IN037
.
Left-side KitsRight-side KitsAmp
20-750-XBUS-LHNB-120020-750-XBUS-RHNB-12001200Standard (15 and 20 in. deep)For use
20-750-XBUS-LHNB-200020-750-XBUS-RHNB-20002000Standard (15 and 20 in. deep)
20-750-XBUS-LHNB-300020-750-XBUS-RHNB-30003000Standard (15 and 20 in. deep)
20-750-XBUS-LHBB-120020-750-XBUS-RHBB-12001200Bumped Back (20 in. deep)
20-750-XBUS-LHBB-200020-750-XBUS-RHBB-20002000Bumped Back (20 in. deep)
20-750-XBUS-LHBB-300020-750-XBUS-RHBB-30003000Bumped Back (20 in. deep)
20-750-XSEC-LH-20G
20-750-XBUS-LLNB-120020-750-XBUS-RLNB-12001200Standard (15 and 20 in. deep)For use
20-750-XBUS-LLNB-200020-750-XBUS-RLNB-20002000Standard (15 and 20 in. deep)
20-750-XBUS-LLNB-300020-750-XBUS-RLNB-30003000Standard (15 and 20 in. deep)
20-750-XBUS-LLBB-120020-750-XBUS-RLBB-12001200Bumped Back (20 in. deep)
20-750-XBUS-LLBB-200020-750-XBUS-RLBB-20002000Bumped Back (20 in. deep)
20-750-XBUS-LLBB-300020-750-XBUS-RLBB-30003000Bumped Back (20 in. deep)
(1) Hardware is included to install the optional 1.5 mounting channel.
(2) The 15 in. deep transition section can be mounted on the left side or the right side of the PowerFlex 755 drive cabinet.
(1)
20-750-XSEC-RH-20G
20-750-XSEC-BH-15G
(2)
Rating
(1)
N/A20 in. deep transition sectionN/A
N/A15 in. deep transition sectionN/A
MCC Bus Bar PositionMounting
Channel
with MCCs
that have
1.5 inch
mounting
channels.
with MCCs
that do not
have
mounting
channels.
2Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
Frame 8 AC Input Drive Shown
Left-side Kits
Follow all steps including the Left-side Kit Assembly sequence for 20 in. deep
left-side-mount transition sections and the 15 in. deep left- or right-side-mount
transition section.
Right-side Kits
Follow all steps including Right-side Kit Assembly sequence for 20 in. deep rightside-mount transition sections and the 15 in. deep left- or right-side-mount
transition section.
Remove Power from All
Equipment
Remove power from all equipment before proceeding with these instructions.
Refer to the product’s installation instructions and review all safety precautions
before performing work on this equipment.
PowerFlex 755 Drive
ATT EN TI ON : To avoid an electric shock hazard, verify that the voltage on the
bus capacitors has discharged completely before servicing. Measure the DC bus
voltage at the -DC and +DC TESTPOINT sockets on the front of the power
module (see Figure 1
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.
1. Turn off and lock out all input power, including any and all external power
sources.
for location).
2. Wait 15 minutes and verify that there is no voltage at the drive’s input
power terminals.
3. Measure the DC bus voltage at the -DC and +DC TESTPOINT sockets
on the front of the power module.
Figure 1 - PowerFlex Drive -DC and +DC Testpoint Sockets
Rockwell Automation Publication 750-IN027C-EN-P - November 20133
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
CENTERLINE 2100 MCC
ATT EN TI ON : De-energize all units before installing or removing.
When installing or removing MCC units, when possible, deenergize, lockout, and
tag-out all sources of power to the MCC.
ATT EN TI ON : De-energize all power sources to the motor control center before
joining and splicing with the drive. Failure to de-energize all power sources can
result in severe injury or death. Using a voltmeter, verify that the MCC remote
power sources are disconnected.
Approximate Dimensions
Dimensions are in millimeters and (inches).
2323
(91.5)
2285
(90.0)
2323
(91.5)
2285
(90.0)
127
(5.0)
20-750-XSEC-BB-20G
4Rockwell Automation Publication 750-IN027C-EN-P - November 2013
381
(15.0)
127
(5.0)
20-750-XSEC-RH-20G
20-750-XSEC-LH-20G
508
(20.0)
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
Preparing the Transition
Section
1. Remove and discard the four shipping plates ➊.
2. Remove the masking from the ground terminals
➋.
MCC Columns with Mounting Channels
3. Remove the spacer ➌ on the side of the transition section that will attach to
the MCC column.
MCC Columns without Mounting Channels
3. Remove the mounting channels ➍ from the transition section.
➊
x 4
➊
x 4
➍
No.DescriptionNo.Description
➊Shipping plates➌Spacer
➋Ground Terminal➍Mounting Channels
➋
➌
Rockwell Automation Publication 750-IN027C-EN-P - November 20135
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
IMPORTANT
Joining Drive, Transition
Section, and MCC
Physical restrictions at your installation may not allow the following sequence to
be followed exactly as stated.
Step 1: Remove Drive Assembly
The PowerFlex 755 drive assembly must be removed to access side panels and
horizontal bus bars.
For detailed information on removing and handling the PowerFlex 755 drive
assembly, refer to the PowerFlex 750-Series AC Drives Installation Instructions,
publication 750-IN001
ATT EN TI ON : This drive has a high center of gravity and a tip-over hazard exists.
To guard against death, serious personal injury, and/or equipment damage, do
not subject the drive to high rates of acceleration or deceleration while
transporting. Do not push or pull above the points indicated on the drive.
. Special equipment is required.
Step 2: Remove Plug-in Units, Support Pans, and Access Covers
All plug-in units and support pans must be removed to access side panels and
horizontal bus bars.
ATT EN TI ON : Plug-in MCC units may be heavy or awkward to handle. Use an
assistant or a platform lift device if necessary to help you handle the unit
To complete plug-in unit removal refer to Installing Units with Horizontal
Operating Handles, publication 2100-IN060
Operating Handles, publication 2100-IN014
ATT EN TI ON : MCCs are top and front heavy. To avoid personal injury or
structural damage, never attempt to lift or move the MCC by any means other
than the methods outlined in Receiving and Storing Motor Control Centers,
publication 2100-IN040
If you’re installing a left-mount kit, see page 7
If you’re installing a right-mount kit, see page 14
After completing these instructions, refer to the publications listed on this page and
under Additional Resources
equipment and components.
.
on page 2 for detailed information on reinstalling
, and Installing Units with Vertical
.
.
.
6Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
➊
➊
➋
➋
➌
Cabinet door and internal components
omitted for clarity.
Left-side Kit Assembly
Step 3 (Left): Join Transition Section to Left Side of Drive Cabinet
1. Remove panels from the left side of the PowerFlex 755 drive cabinet.
No.Description
➊Top and bottom rear-wireway panels.
➋Top and bottom PE bus-bar access panels.
➌Main horizontal bus-bar access panel.
2. Align the left transition section with the drive cabinet.
➊
➊
➊
➊
➊
➊
➊
➊
Rockwell Automation Publication 750-IN027C-EN-P - November 20137
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
IMPORTANT
3. Bring the transition section and drive cabinet together.
4. Pass the M6 x 16 mm hex-head thread-forming screws from inside the
transition section through the joining holes and engage the screws with the
➊ holes in the drive cabinet.
5. Make sure cabinets are level and pushed together tightly.
6. Tighten the screws in a uniform pattern.
Do not use hardware to draw cabinets together.
M6
6.2 N•m (55 lb•in)
10 mm
8Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
Unit doors, support pans, and access
covers omitted for clarity.
Step 4 (Left): Join MCC Column to Left Side of Transition Section
1. Remove the closing plates from the right side of the MCC column.
➋
➊
➌
➋
➊
No.Description
➊Top and bottom front-wireway closing plates.
➋Top and bottom rear-wireway closing plates.
➌Main horizontal bus-bar closing plates.
Rockwell Automation Publication 750-IN027C-EN-P - November 20139
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
➋
➊
➊
➊
➊
➊
➊
MCC side of transition section
2. Align the MCC column with the left transition section.
3. Bring the MCC column, transition section, and drive cabinet together.
4. Pass the 1/4-20 x 0.5 in. hex-head thread-forming screws from inside the
MCC column through the joining holes and engage the screws with the
➊
holes in the transition section.
5. Pass the 1/4-20 x 1 in. screw from inside the MCC column through the
transition section joining hole
➋ and secure with the 1/4-20 steel nut.
10Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
IMPORTANT
6. Make sure cabinets are level and pushed together tightly.
7. Tighten the screws in a uniform pattern.
Do not use hardware to draw cabinets together.
1/4-20
6.2 N•m (55 lb•in)
10 mm
Rockwell Automation Publication 750-IN027C-EN-P - November 201311
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
IMPORTANT
Step 5 (Left): Join PE Bus Bar and Grounding Bracket
1. Align the protective earth (PE) conductor splicing hardware with the
transition section grounding bracket.
2. Insert and tighten the 1/4-20 x 1 in. screws.
Do not grease or lubricate hardware.
1/4-20 x 1 in.
7.3 N•m (65 lb•in)
10 mm
12Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
1/4-20
7.3 N•m (65 lb•in)
10 mm
➊
➌
➋
1/4-20 x 1 in.
1/4-20 x 1 in.
1/4-20 x 1.25 in.
Step 6 (Left): Connect PE Splicing Cables
1. Pass the cables through the bottom wireway openings.
2. Connect the PE splicing cables between the MCC and drive PE bus bars.
No.DescriptionHardware
➊1200A with 25.4 mm (1 in.) bus bar. Requires two splice cables.
➋2000A with 25.4 mm (1 in.) bus bar. Requires two splice cables.
2000A with 50.8 mm (2 in.) bus bar. Requires three splice cables.
➌3000A with 50.8 mm (2 in.) bus bar. Requires three splice cables.
See Tab le 3
required hardware.
for a list of
Rockwell Automation Publication 750-IN027C-EN-P - November 201313
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
Unit doors, support pans, and access
covers omitted for clarity.
➊
➋
➊
➊
➊
➊
➊
MCC column
Right-side Kit Assembly
Step 3 (Right): Join Transition Section to Left Side of MCC Column
1. Remove the closing plates from the left side of the MCC column.
➋
➊
➌
➋
➊
No.Description
➊Top and bottom front-wireway closing plates.
➋Top and bottom rear-wireway closing plates.
➌Main horizontal bus-bar closing plates.
2. Align the right transition section with the MCC column
14Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
IMPORTANT
1/4-20
6.2 N•m (55 lb•in)
10 mm
3. Bring the transition section and MCC column together.
4. Pass the 1/4-20 x 0.5 in. hex-head thread-forming screws from inside the
transition section through the joining holes and engage the screws with the
➊ holes in the MCC column.
5. Pass the 1/4-20 x 1 in. screw from inside the MCC column through the
transition section joining hole
➋ and secure with the 1/4-20 steel nut.
6. Make sure cabinets are level and pushed together tightly.
7. Tighten the screws in a uniform pattern.
Do not use hardware to draw cabinets together.
Rockwell Automation Publication 750-IN027C-EN-P - November 201315
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
IMPORTANT
Step 4 (Right): Join PE Bus Bar and Grounding Bracket
1. Align the protective earth (PE) conductor splicing hardware with the
transition section grounding bracket.
2. Insert and tighten the 1/4-20 x 1 in. screws.
Do not grease or lubricate hardware.
1/4-20 x 1 in.
7.3 N•m (65 lb•in)
10 mm
16Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
Cabinet door and internal components
omitted for clarity.
Step 5 (Right): Join Drive Cabinet to Left Side of Transition Section
1. Remove panels from the right side of the PowerFlex 755 drive cabinet.
➊
➋
➌
➋
No.Description
➊Top and bottom rear-wireway panels.
➋Top and bottom PE bus-bar access panels.
➌Main horizontal bus-bar access panel.
➊
Rockwell Automation Publication 750-IN027C-EN-P - November 201317
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
2. Align the right transition section with the drive cabinet.
➊
➊
➊
➊
➊
➊
➊
➊
3. Bring the transition section, MCC column, and drive cabinet together.
4. Pass the M6 x 16 mm hex-head thread-forming screws from inside the
drive cabinet through the joining holes and engage the screws with the
holes in the transition section.
➊
18Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
IMPORTANT
1/4-20
7.3 N•m (65 lb•in)
10 mm
➊
➌
➋
1/4-20 x 1 in.
1/4-20 x 1 in.
1/4-20 x 1.25 in.
5. Make sure cabinets are level and pushed together tightly.
6. Tighten the screws in a uniform pattern.
Do not use hardware to draw cabinets together.
M6
6.2 N•m (55 lb•in)
10 mm
Step 6 (Right): Connect PE Splicing Cables
1. Pass the cables through the bottom wireway openings.
2. Connect the PE splicing cables between the MCC and drive PE bus bars.
No.DescriptionHardware
➊1200A with 25.4 mm (1 in.) bus bar. Requires two splice cables.
➋2000A with 25.4 mm (1 in.) bus bar. Requires two splice cables.
2000A with 50.8 mm (2 in.) bus bar. Requires three splice cables.
➌3000A with 50.8 mm (2 in.) bus bar. Requires three splice cables.
Rockwell Automation Publication 750-IN027C-EN-P - November 201319
See Tab le 3
required hardware.
for a list of
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
IMPORTANT
Main Horizontal Bus -bar
Main Horizontal
Bus-bar Splicing Bars
Flat Washers
One-Piece Nut and Conical Spring Washer
Bus Clamps
Front
Step 7: Join Horizontal Bus and Splicing Bars
Splicing kits will contain either two or four sets of hardware per splice bar,
depending on the current rating of the horizontal bus. Assemble hardware as
depicted in Figure 2
listed in Ta bl e 1
Figure 2 - Splicing Hardware Configuration Detail
and uniformly tighten splice kit hardware to the final torque
.
Note for NO-OX-ID: If you’re using corrosion inhibitor on bus bars, do not get
any on the bus splicing hardware. It will prevent the hardware from being
properly torqued. Damage may occur.
20Rockwell Automation Publication 750-IN027C-EN-P - November 2013
See Tab le 3 for main horizontal bus-bar splicing bar dimensions.
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
Standard Bus-bar Position
MCC Horizontal Bus
PowerFlex Drive
Horizontal Bus
Front
MCC Horizontal Bus
PowerFlex Drive
Horizontal Bus
Front
MCC Horizontal Bus
PowerFlex Drive
Horizontal Bus
Front
Left-side Standard Bus-bar Splice Kits
Figure 3 - 1200A (Kit No. 20-750-XBUS-LHNB/LLNB-1200) - Standard Bus-bar Position
3/8-16 x 1.38 in.
Figure 4 - 2000A (Kit No. 20-750-XBUS-LHNB/LLNB-2000) - Standard Bus-bar Position
3/8-16 x 2.25 in.
Figure 5 - 3000A (Kit No. 20-750-XBUS-LHNB/LLNB-3000) - Standard Bus-bar Position
3/8-16 x 2.75 in.
3/8-16 x 2.25 in.
Rockwell Automation Publication 750-IN027C-EN-P - November 201321
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
24Rockwell Automation Publication 750-IN027C-EN-P - November 2013
PowerFlex 755 Transition Section and Splicing Kit for Floor-mount Drives and CENTERLINE 2100 Motor Control Centers
Specifications
Tighten all bus connections with a torque wrench and socket according to
intervals established by your maintenance policy. If a torque wrench is not
available, tighten until the conical spring washer is flat. Do not grease or lubricate
the hardware.
Table 1 - Torque Requirements
DescriptionHardwareTorque
Transition section to drive cabinet joining screwsM66.2 N•m (55 lb•in)
Transition section to MCC column joining screws1/4-206.2 N•m (55 lb•in)
Main horizontal bus-bar splice connection3/8-1638 N•m (336 lb•in)
Table 2 - Horizontal Bus Required Splice Hardware
Amp RatingDescriptionQuantity
12003/8-16 x 1.38 in. bus clamp assembly12
3/8 flat washer24
3/8-16 one-piece nut and conical spring washer24
20003/8-16 x 2.25 in. bus clamp assembly12
3/8 flat washer24
3/8-16 one-piece nut and conical spring washer24
30003/8-16 x 2.25 in. bus clamp assembly6
3/8-16 x 2.75 in. bus clamp assembly6
3/8 flat washer24
3/8-16 one-piece nut and conical spring washer24
Table 3 - PE Bus Required Splice Hardware
PE Bus Bar WidthAmp RatingDescriptionQuantity
25.4 mm (1.0 in.)1200 and 2000762 mm (30 in.) 250 MCM cable2
1/4-20 x 1.25 in. hex-head cap screw1
1/4-20 x 1.0 in. hex-head cap screw3
1/4 flat washer7
1/4 conical spring washer4
1/4-20 G5 hex nut3
50.8 mm (2.0 in.)2000 and 3000762 mm (30 in.) 250 MCM cable2
914 mm (36 in.) 250 MCM cable1
1/4-20 x 1.25 in. hex-head cap screw1
1/4-20 x 1.0 in. hex-head cap screw6
1/4 flat washer10
1/4 conical spring washer7
1/4-20 G5 hex nut5
Rockwell Automation Publication 750-IN027C-EN-P - November 201325
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Rockwell Automation provides technical information on the Web to assist you in using its products.
At http://www.rockwellautomation.com/support
code and links to software service packs, and a MySupport feature that you can customize to make the best use of these
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, you can find technical manuals, technical and application notes, sample
for FAQs, technical
For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer
Te c h C o n n e c t
representative, or visit http://www.rockwellautomation.com/support/
SM
support programs. For more information, contact your local distributor or Rockwell Automation
.
Installation Assistance
If you experience a problem within the first 24 hours of installation, review the information that is contained in this
manual. You can contact Customer Support for initial help in getting your product up and running.
United States or Canada1.440.646.3434
Outside United States or CanadaUse the Worldwi de Lo cator
local Rockwell Automation representative.
at http://www.rockwellautomation.com/rockwellautomation/support/overview.page, or contact your
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