Rockwell Automation 1336T User Manual

Installation Instructions

Wiring and Grounding Guidelines for Pulse Width Modulated (PWM) AC Drives

Important User Information

IMPORTANT

Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.

Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to be carried out by suitably trained personnel in accordance with applicable code of practice.

If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.

Identifies information that is critical for successful application and understanding of the product.

Labels may also be on or inside the equipment to provide specific precautions.

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Allen-Bradley, Rockwell Software, PartnerNetwork, PowerFlex, and Rockwell Automation are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Summary of Changes

The information below summarizes the changes to this manual since the last release.

New and Updated Information

Top ic Pag e

Added PowerFlex 525, PowerFlex 753, and PowerFlex 755 drives to the motor cable length cross referenc e table.

Added motor cable length restriction tables for PowerFlex 525 drives.

Table 23, 400V (frames A…E) 90

Table 24, 480V (frames A…E) 91

Table 25, 600V (frames A…E) 92

Updated motor cable length restriction tables for PowerFlex 700H drives.

Table 32, 600V (frames 9…13) 100

Table 33, 690V (frames 9…13) 100

Updated motor cable length restriction tables for PowerFlex 700S drives.

Table 44, 600V (frames 3…13) 107

Table 45, 690V (frames 5…13) 108

Added motor cable length restriction tables for PowerFlex 753 and 755 wall mount drives.

Table 46, 400V (frames 1 and 2) 109

Table 47, 480V (frames 1 and 2) 111

Table 48, 600V (frames 3…7) 114

Table 49, 690V (frames 6 and 7) 117

Added motor cable length restriction tables for PowerFlex 755 floor mount drives.

Table 50, 400V (frames 9 and 10) 118

Table 51, 480V (frames 9 and 10) 120

Table 52, 600V (frames 8…10) 121

Table 53, 690V (frames 8…10) 123

83

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 3

Summary of Changes

Notes:

4 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Preface

About This Publication

This manual provides the basic information needed to properly install, protect, wire, and ground pulse width modulated (PWM) AC drives.

Intended Audience

This manual is intended for qualified personnel who plan and design installations of PWM AC drives.

Additional Resources

These documents contain additional information concerning related products from Rockwell Automation.

Resource Description

Safety Guidelines for the Ap plication, Installation and Maintenance of Solid State Control, publication SGI-1.1

Don’t Ignore the Cost of Power Line Disturbance, publication 1321-TD001 Provides technical data on Allen-Bradley power conditioning products.

IEEE Guide for the Installation of Electrical Equipment to Minimize Electrical Noise Inputs to Controllers from External Sources, publication IEEE 518. Availa ble from IEEE Xplore Digital Librar y.

Recommended Practice for Powering and Grounding Electronic Equipment - IEEE Emerald Book, publication IEEE STD 1100. Available from IEEE Xplore Digital Library

IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems, publication IEEE Std 142-1991. Available from IEEE Xplore Digital Library

Cable Alternatives for PWM AC Drive Applications, publication IEEE Paper No. PCIC-99-23. Available from IEEE Xplore Digital Library

EMI Emissions of Modern PWM AC Drives

IEEE Industry Applications Magazine

Electromagnetic Interference and Compatibility, Volume 3, by Donald R. J. White This book provides information EMI control methods and techniques.

Grounding, Bonding, and Shielding for Electronic Equipment and Facilities (Military Handbook 419)

Noise Reduction Techniques in Electronic Systems by Henry W. Ott This book provides information on controlling emissions from electronic systems, and

Grounding for the Control of EMI by Hugh W. Denny This book provides grounding guidelines for the control of EMI.

EMC for Product Designers by Tim Williams This book provides the information needed to meet the requirements of the latest EMC

National Electrical Code (ANSI/NFPA 70) Articles 250, 725-5, 725-15, 725-52 and 800-52 (www.nfpa.org)

Application Guide for AC Adjustable Speed Drive Systems, NEMA (www.nema.org

IEC 60364-5-52 Selection and Erection of Electrical Equipment - Wiring systems, IEC (www.iec.ch)

.

, Nov./Dec. 1999

).

Provides general guidelines for the application, installation, and maintenance of solid-state control devices or assemblies.

Provides techniques for installing controllers and control systems so that proper operation can be achieved in the presence of electrical noise.

Provides the recommended practices for powering and groundiing electronic equipment.

.

Provides recommended practices to ground power systems.

.

Describes an alternative solution for cables used with IGBT variable frequency drives (VFDs).

Provides an understanding of EMI issues and with pre-installation and post-installation guidelines.

Provides grounding, bonding, and shielding applications for communication electronics equipments and facilities.

techniques for providing electromagnetic compatibility (EMC).

directive.

Provides information on the installation of electrical components, signaling and communication conductors and grounding.

Provides a NEMA applicatio n guide for AC drive systems.

IEC wiring systems.

You can view or download publications at

http:/www.rockwellautomation.com/literature/

. To order paper copies of technical documentation, contact your local Allen-Bradley distributor or Rockwell Automation sales representative.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 9

Preface

Recommended Cable/Wire

General Precautions

The recommended wire and cable referenced in this publication can be obtained from third-party companies found in our PartnerNetwork™ Encompass Program.

For further information on these suppliers and their products, follow these steps to find recommended wire and cable for your drives.

1. Go to the Encompass website at http://www.rockwellautomation.com/

rockwellautomation/sales-partners/complementary-products/ overview.page.

2. Under Find an Encompass Referenced Product, click FIND NOW.

3. In the Product Category pull-down list, choose Drive - Cables.

4. Click SEARCH.

ATT EN TI ON : To avoid an electric shock hazard, verify that the voltage on the bus capacitors has discharged before performing any work on the drive. Measure the DC bus voltage at the +DC and –DC terminals of the power terminal block. The voltage must be zero.

10 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Chapter 1

Wire/Cable Types

AC drive installations have specific wire and cable requirements. This section includes information about the major issues for proper selection of cable, and provides recommendations to address these issues. Consider these conditions and requirements when choosing cable material and construction for your installation:

• Environment – such as moisture, temperature, and harsh or corrosive chemicals.

• Mechanical needs – such as geometry, shielding, flexibility, and crush resistance.

• Electrical characteristics – such as cable capacitance/charging current, resistance/voltage drop, current rating, and insulation. Insulation can be the most significant of these. Because drives can create voltages in excess of line voltage, the industry standard cables that were used in the past are not the best choice for variable speed drives. Drive installations benefit from cable that is significantly different than cable used to wire contactors and push buttons.

• Safety issues – such as electrical code requirements, grounding needs, and others.

General

Choosing incorrect cabling can be costly and can adversely affect the performance of your installation.

Material

Use only copper wire. The wire clamp-type terminals in Allen-Bradley drives are made for use with copper wire. If you use aluminum wire, the connections can loosen and cause premature equipment failure.

Wire gauge requirements and recommendations are based on 75 °C (167 °F) rating. Do not reduce wire gauge when you use higher temperature wire.

Exterior Cover

Whether shielded or unshielded, the cable must meet all of the application requirements. Consider insulation value and resistance to moisture, contaminants, corrosive agents, and other invasive elements. Consult the cable manufacturer and Figure 1 on page 12

for cable selection criteria.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 11

Chapter 1 Wire/Cable Types

XLPE

PVC

20 mil or > (1)

230V 400/460V

15 mil

> 15.2 m (50 ft)

< 15.2 m (50 ft)

575V

Selecting Wire to Withstand Reflected Wave Voltage for New and Existing Wire Installations in

Conduit or Cable Trays

Conductor

Environment

Conductor Insulation

Insulation Thicknes s

DRY

(per NEC Article 100)

WET

(per NEC Article 100)

XLPE (XHHW-2)

Insulation for

< 600V AC

System No RWR or Ter mi na to r

Required

OK for < 600V AC

System

No RWR or

Terminator Required

Reflected Wave

Reducer?

RWR or

Ter m in a to r

No RWR or Ter m in a to r

RWR or

Ter mi na to r

No RWR or Ter mi na to r

Reflected Wave

Reducer?

Cable

Length

Number of

Drives in Same

Conduit or Wire

Tra y

15 mil PVC

in Not

Recommended.

Use XLPE

or > 20 mil

15 mil PVC

is Not

Recommended.

Use XLPE

or > 20 mil

Multiple Drives

in Single Conduit

or Wire Tray

Single Drive,

Single Conduit or

Wire Tray

See NEC Guidelines (Article 310 Adjustment Factors) for Maximum Conductor Derating and Maximum

Wires in Con duit or Tray

(1) The minimum wire size for PVC cable with 20 mil or greater insulation is 10 gauge.

IMPORTANT

Figure 1 - Wire Selection Flowchart

Temperature Rating

In general, follow these temperature ratings for installations:

• In surrounding air temperature of 50 °C (122 °F), use 90 °C (194 °F) wire (required for UL)

• In surrounding air temperature of 40 °C (104 °F), use 75 °C (167 °F) wire (required for UL)

Refer to the user manual of the drive for other restrictions.

The temperature rating of the wire affects the required gauge. Verify that your installation meets all applicable national, state, and local codes.

12 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Wire/ Cable Typ es Chapter 1

One Ground Conductor

Three Ground Conductors

Gauge

The correct wire size is determined by a number of factors. The user manual for each drive lists a minimum and maximum wire gauge based on the amperage rating of the drive and the physical limitations of the terminal blocks. Local or national electrical codes also set the required minimum gauge based on motor full load current (FLA). Follow both of these requirements.

Number of Conductors

Local or national electrical codes can determine the required number of conductors. Generally, these configurations are recommended:

• Figure 2

for drives up to and including 200 Hp (150 kW).

• Figure 3

for drives larger than 200 Hp (150 kW).

Space the ground conductors symmetrically around the power conductors. Verify that the ground conductors are rated for full drive ampacity.

shows cable with a single ground conductor that is recommended

shows cable with three ground conductors that is recommended

Figure 2 - Cable with One Ground Conductor

W

G BR

Figure 3 - Cable with Three Ground Conductors

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 13

Chapter 1 Wire/Cable Types

Unacceptable

Accepta ble

Insulation Thickness and Concentricity

Wire must have an insulation thickness of ≥ 15 mil (0.4 mm/0.015 in.). The wire insulation must not have significant variations of concentricity around the wire.

Figure 4 - Insulation Concentricity

Geometry

The physical relationship between individual conductors is important in drive installations.

Individual conductors in conduit or cable trays have no fixed relationship and are subject to cross coupling of noise, induced voltages, excess insulation stress, and other possible interference.

Fixed geometry cable (cable that keeps the spacing and orientation of the individual conductors constant) offers significant advantages over individual loose conductors, including reduced cross-coupling noise and insulation stress. Three types of fixed geometry, multi-conductor cables are discussed in this section. See Unshielded Cable on page 15

Armored Cable on page 17

Table 1 - Recommended Cable Design

Type Max Wire Size Where Used Rating/Type Description

Type 1 2 AWG Standard installations

100 Hp or less

Type 2 2 AWG Standard installations

100 Hp or less with brake conductors

Type 3 500 MCM AWG Standard installations

150 Hp or more

Type 4 500 MCM AWG Water, caustic chemical,

crush resistance

Type 5 500 MCM AWG 690V applications Tray-rated 2000V, 90 °C (194 °F) Three tinned copper conductors with XLPE insulation. Three bare copper

600V, 90 °C (194 °F) XHHW2/RHW-2

600V, 90 °C (194 °F) RHH/RHW-2

Tray-rated 600V, 90 °C (194 °F) RHH/RHW-2

.

Four tinned copper conductors with cross-linked polyethylene (XLPE) insulation

Four tinned copper conductors with XLPE insulation plus one shielded pair of brake conductors.

Three tinned copper conductors with XLPE insulation and three bare copper grounds and polyvinyl chloride (PVC) jacket.

Three bare copper conductors with XLPE insulation and three copper grounds on 10 AWG and smaller. Acceptable in Class I and II, Division I and II locations.

grounds and PVC jacket. IMPORTANT: If terminator network or output filter is used, connector

insulation must be XLPE, not PVC.

, Shielded Cable on page 16, and

14 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Wire/ Cable Typ es Chapter 1

Typ e 1 I nst al latio n, w ithout Brake Conductors

G

R

B

W

Single Ground Conduc tor

PVC Outer Sheath

Filler

Multiple Ground

Conducto rs

PVC Outer Sheath

Filler

Unshielded Cable

Properly designed multi-conductor cable can provide superior performance in wet applications, significantly reduce voltage stress on wire insulation, and reduce cross coupling between drives.

The use of cables without shielding is generally acceptable for installations where electrical noise created by the drive does not interfere with the operation of other devices, such as communication cards, photoelectric switches, weigh scales, and others. Verify that the installation does not require shielded cable to meet specific electromagnetic compatibility (EMC) standards for CE, C-Tick, or FCC requirements. Cable specifications depend on the installation type.

Type 1 and Type 2 Installation

Type 1 or Type 2 installations require 3-phase conductors and a fully rated individual ground conductor with or without brake leads. Refer to Table 1 on

page 14 for detailed information and specifications on these installations.

Figure 5 - Type 1 Unshielded Multi-conductor Cable without Brake Leads

Type 3 Installation

Type 3 installation requires three symmetrical ground conductors whose ampacity equals the phase conductor. Refer to Table 1 on page 14 information and specifications on this installation.

Figure 6 - Type 3 Unshielded Multi-Conductor Cable

G

B

W

G

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 15

G

R

for detailed

Chapter 1 Wire/Cable Types

Shield

Drain Wire

Chose the outer sheathing and other mechanical characteristics to suit the installation environment. Consider the surrounding air temperature, chemical environment, flexibility, and other factors in all installation types.

Shielded Cable

Shielded cable contains all of the general benefits of multi-conductor cable with the added benefit of a copper-braided shield that can contain much of the noise generated by a typical AC drive. Use shielded cable for installations with sensitive equipment, such as weigh scales, capacitive proximity switches, and other devices that can be affected by electrical noise in the distribution system. Applications with large numbers of drives in a single location, imposed EMC regulations, or a high degree of communication/networking, are also good candidates for shielded cable.

Shielded cable can also help reduce shaft voltage and induced bearing currents for some applications. In addition, the increased size of shielded cable can help extend the distance that the motor can be from the drive without the addition of motor protective devices, such as terminator networks. Refer to Chapter 5 information regarding reflected wave phenomena.

for

Consider all of the general specifications dictated by the environment of the installation, including temperature, flexibility, moisture characteristics, and chemical resistance. In addition, include a braided shield specified by the cable manufacturer as having coverage of at least 75%. An additional foil shield can greatly improve noise containment.

Type 1 Installation

An acceptable shielded cable for Type 1 installations has four XLPE insulated conductors with a 100% coverage foil and an 85% coverage copper braided shield (with drain wire) surrounded by a PVC jacket. For detailed specifications and information on Type 1 installations, refer to Table 1 on page 14

Figure 7 - Type 1 Installation — Shielded Cable with Four Conductors

W

G

.

BR

16 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Wire/ Cable Typ es Chapter 1

B

R

G

W

Drain Wire for Brake

Conduc tor Shiel d

Shield for Brake

Condu ctors

TIP

Type 2 Installation

An acceptable shielded cable for Type 2 installations is essentially the same cable as Type 1, plus one shielded pair of brake conductors. For more information on Typ e 2 in sta llat io ns, re fe r to Table 1 on page 14

Figure 8 - Type 2 Installation — Shielded Cable with Brake Conductors

.

Type 3 Installation

These cables have 3 XLPE insulated copper conductors, 25% minimal overlap with helical copper tape, and three bare copper grounds in PVC jacket.

Other types of shielded cable are available, but the selection of these types can limit the allowable cable length. Particularly, some of the newer cables twist four conductors of THHN wire and wrap them tightly with a foil shield. This construction can greatly increase the cable charging current required and reduce the overall drive performance. Unless specified in the individual distance tables as tested with the drive, these cables are not recommended and their performance against the lead length limits supplied is not known. For more information about motor cable lead restrictions, refer to, Conduit on page 67

Moisture on page 72

, Effects On Wire Types on page 73, and Appendix A.

,

Armored Cable

Cable with continuous aluminum armor is often recommended in drive system applications or specific industries. Armored cable offers most of the advantages of standard shielded cable and also combines considerable mechanical strength and resistance to moisture. It can be installed in concealed and exposed manners and removes the requirement for conduit (electrical metallic tubing [EMT]) in the installation. It can also be directly buried or embedded in concrete.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 17

Chapter 1 Wire/Cable Types

IMPORTANT

Cable with Three Ground Conductors

Cable with a Single Ground Conductor

G

R

B

W

Conduc tors wit h XLPE

Insulation

Optional Foil/Copper Tape

and/or Inner PVC Jacket

Armor

Optional PVC Outer Sheath

Because noise containment can be affected by incidental grounding of the armor to building steel when the cable is mounted, we recommend that the armored cable has an overall PVC jacket (see Chapter 2

).

Interlocked armor is acceptable for shorter cable runs, but continuous welded armor is preferred. General recommendations for ground conductors are listed here:

• Cable with a single ground conductor is sufficient for drive sizes up to and including 200 Hp (150 kW).

• Cable with three ground conductors is recommended for drive sizes larger than 200 Hp (150 kW).

Space the ground conductors symmetrically around the power conductors. Verify that the ground conductors are rated for full drive ampacity.

G

B

W

G

R

Figure 9 - Armored Cable with Three Ground Conductors

A good example of cable for Type 5 installation is Anixter 7V-5003-3G. This cable has three XLPE insulated copper conductors, 25% minimal overlap with the helical copper tape, and three bare copper grounds in PVC jacket.

If a terminator network or output filter is used, the connector insulation must be XLPE, and not PVC.

18 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Wire/ Cable Typ es Chapter 1

Stranded Neutral

PVC Outer Sheath

Filler

European Style Cable

Cable used in many installations in Europe must conform to Low Voltage Directive (LVD) 2006/95/EC. Generally recommended are flexible cables with a bend radius of 20 times the cable diameter for movable cable, and 6 times the cable diameter for fixed installations, with a screen (shield) of 70…85% coverage. Insulation for both conductors and the outer sheath is PVC.

The number and color of individual conductors can vary, but the recommendation is for three phase conductors (customer-preferred colors) and one ground conductor (green/yellow).

Ölflex Classic 100SY, or Ölflex Classic 110CY, are examples.

Figure 10 - European Style Multi-conductor Cable

B

W

Input Power Cables

R

In general, the selection of cable for AC input power to a drive has no special requirements. Some installations suggest shielded cable to prevent coupling of noise onto the cable (see Chapter 2

), and in some cases shielded cable can be required to meet noise standards, such as CE for Europe, C-Tick for Australia/ New Zealand, and others. This can be especially true if an input filter is required to meet a standard. The user manual for the drive has the requirements for meeting these types of standards. Additionally, individual industries can have required standards due to environment or experience.

For AC variable frequency drive applications that must satisfy EMC standards for CE, C-Tick, FCC, or others, we recommend the same type of shielded cable that is specified for the AC motors be used between the drive and transformer. Check the individual user manuals or system schematics for specific additional requirements to meet EMC standards.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 19

Chapter 1 Wire/Cable Types

182.9 (600)

91.4 (300) 91.4 (300)

15.2 (50)

167.6 (550) 152.4 (500)

15.2 (50)15.2 (50)

All examples represent motor cable length of 182.9 m (600 ft)

IMPORTANT

Motor Cables

The majority of recommendations regarding drive cables are for issues caused by the nature of the drive output. A PWM drive creates AC motor current by sending DC voltage pulses to the motor in a specific pattern. These pulses affect the wire insulation and can be a source of electrical noise. Consider the rise time, amplitude, and frequency of these pulses when choosing a wire/cable type. Consider these factors when choosing a cable:

• The effects of the drive output once the cable is installed.

• The need for the cable to contain noise caused by the drive output.

• The amount of cable charging current available from the drive.

• Possible voltage drop (and subsequent loss of torque) for long wire runs.

Keep the motor cable lengths within the limits set in the user manual for the drive. Various issues, including cable charging current and reflected wave voltage stress, can exist. If the cable restriction is listed because of excessive coupling current, apply the methods to calculate total cable length, as shown in Figure 11 If the restriction is due to voltage reflection and motor protection, refer to

Appendix A

Figure 11 - Motor Cable Length for Capacitive Coupling

for exact distances allowed.

.

20 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

For multi-motor applications, review the installation carefully. Consult your distributor drive specialist or Rockwell Automation when considering a multi-motor application with greater than two motors. In general, most installations have no issues. However, high peak cable charging currents can cause drive over-currents or ground faults.

Wire/ Cable Typ es Chapter 1

Cable for Discrete Drive I/O

Analog Signal and Encoder Cable

Discrete I/O, such as start and stop commands, can be wired to the drive with a variety of cabling. We recommend shielded cable to reduce cross-coupled noise from power cables. Standard individual conductors that meet the general requirements for type, temperature, gauge, and applicable codes are acceptable if they are routed away from higher voltage cables to minimize noise coupling. However, multi-conductor cable can be less expensive to install. Separate control wires from power wires by at least 0.3 m (1 ft)

Table 2 - Recommended Control Wire for Digital I/O

(1)

Type

Unshielded Per US NEC or applicable national or local code – 300V, 60 °C

Shielded Multi-conductor shielded cable 0.750 mm

(1) The cable choices shown are for 2-channel (A and B) or 3-channel (A,B, and Z) encoders. If high resolution or other types of

feedback devices are used, choose a similar cable with the correct gauge and number of conductor pairs.

Wire Type(s) Description Minimum

2

3-conductor, shielded.

(18 AWG),

Insulation Rating

(140 °F)

Always use shielded cable with copper wire. We recommend wire with an insulation rating of 300V or greater. Separate analog signal wires from power wires by at least 0.3 m (1 ft). Run encoder cables in a separate conduit. If signal cables must cross power cables, cross at right angles. Terminate the shield of the shielded cable as recommended by the manufacturer of the encoder or analog signal device.

Table 3 - Recommended Signal Wire

Signal Type/ Where Used

Standard analog I/O – 0.750 mm2 (18 AWG), twisted pair, 100% shield

Remote pot – 0.750 mm2 (18 AWG), 3-conductor, shielded

Encoder/Pulse I/O < 30.5 m (100 ft)

Encoder/Pulse I/O

30.5…152.4 m (100…500 ft)

Encoder/Pulse I/O

152.4…259.1 m (500…850 ft)

(1) If the wires are short and contained within a cabinet that has no sensitive circuits, the use of shielded wire is not always necessary,

but is recommended.

Wire Type( s)

Combined 0.196 mm

Signal 0.196 mm2 (24 AWG), individually shielded

Power 0.750 mm

Combined 0.330 mm

Signal 0.196 mm2 (24 AWG), individually shielded

Power 0.750 mm

Combined 0.750 mm

Description Minimum

(1)

with drain

2

(24 AWG), individually shielded

2

(18 AWG)

2

or 0.500 mm

2

(18 AWG)

2

(18 AWG), individually shielded pair

2

Insulation Rating

300V, 75…90 °C (167…194 °F)

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 21

Chapter 1 Wire/Cable Types

Communication

This section provides cable recommendations for these communication protocols:

• DeviceNet on page 22

• ControlNet on page 23

• Ethernet on page 23

• Remote I/O and Data Highway Plus (DH+) on page 24

• Serial (RS-232 and RS-485) on page 24

DeviceNet

DeviceNet cable options, topology, distances allowed, and techniques are specific to the DeviceNet network. For more information, refer to DeviceNet Media Design and Installation Guide, publication DNET-UM072

In general, the four cable types for DeviceNet media meet these criteria:

• Round (thick) cable with an outside diameter of 12.2 mm (0.48 in.); normally used for trunk lines, but can also be used for drop lines.

• Round (thin) cable with an outside diameter of 6.9 mm (0.27 in.); normally used for drop lines, but can also be used for trunk lines.

• Flat cable, normally used for trunk lines.

• KwikLink drop cable, used only in KwikLink systems.

.

Round cable contains these five wires:

• One twisted pair (red and black) for 24V DC power.

• One twisted pair (blue and white) for signal.

• One drain wire (bare).

Flat cable contains these four wires:

• One pair (red and black) for 24V DC power.

• One pair (blue and white) for signal.

Drop cable for KwikLink is a 4-wire, unshielded, gray cable.

The distance between points, installation of terminating resistors, and chosen baud rate are significant to the installation. For more information, refer to the DeviceNet Media Design and Installation Guide, publication DNET-UM072

.

22 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Wire/ Cable Typ es Chapter 1

ControlNet

ControlNet cable options, topology, distances allowed, and techniques are specific to the ControlNet network. For more information, refer to the ControlNet Coax Media Planning and Installation Guide, publication

CNET-IN002

Depending on the environment at the installation site, there are several types of RG-6 quad shield cables that can be appropriate. The standard cable recommended is Allen-Bradley catalog number 1786-RG6, Quad Shield coax. Country, state, or local codes, such as the U.S. NEC, govern the installation.

Installation Environment Use this Cable Type

Light industrial • Standard PVC

Heavy ind ustrial • Lay-on armored

High/Low temperature or corrosive (harsh chemicals) • Plenum-FEP

Festooning or flexing • High flex

Moistu re: direct bu rial, with fl ooding compound, fungus resistant • Flood burial

.

• CM-CL2

• Light interlocking armor

• CMP-CL2P

The allowable length of segments and installation of terminating resistors play a significant part in the installation. Refer to the ControlNet Coax Media Planning and Installation Guide, publication CNET-IN002

, for details.

Ethernet

Ethernet communication interface wiring is very detailed for the type of cable, connectors, and routing. In general, Ethernet systems use shielded twisted pair (STP) cable, or unshielded twisted pair (UTP) cable, with RJ45 connectors that meet the IP67 standard and are appropriate for the environment. Use cables that meet Telecommunications Industry Association/Electronic Industries Alliance (TIA/EIA) standards at industrial temperatures.

Shielded cable is recommended when the installation can include welding, electrostatic processes, drives over 10 Hp, motor control centers (MCCs), high power RF radiation, or devices carrying current in excess of 100 A. Shield handling and single-point grounding, also discussed in this document, are also important for the proper operation of Ethernet installations.

There are also important distance and routing limitations published in detail.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 23

Chapter 1 Wire/Cable Types

IMPORTANT

Remote I/O and Data Highway Plus (DH+)

Only Allen-Bradley catalog number 1770-CD shielded twinaxial cabling is tested and approved for remote I/O and DH+ installations.

The maximum cable length depends on the baud rate.

Baud Rate Maximum Cable Length

57.6 Kbps 3048 m (10,000 ft)

115.2 Kbps 1524 m (5000 ft)

230.4 Kbps 762 m (2500 ft)

All three connections (blue, shield, and clear) must be connected at each node.

Do not connect in a star topology. Only two cables can be connected at any wiring point. Use either series or daisy chain topology at all points.

Serial (RS-232 and RS-485)

Follow these recommended standard practices for serial communications wiring:

• One twisted pair and one signal common for RS-232.

• Two twisted pair, with each pair individually shielded, for RS-485.

24 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Chapter 2

Power Distribution

This chapter discusses different power distribution schemes and factors that can affect drive performance.

System Configurations

The type of transformer and the connection configuration feeding the drive have an important role in drive performance and safety. This section includes a brief description of some of the more common configurations and their qualities and shortcomings.

Delta/Wye with Grounded Wye Neutral

Delta/Wye wi th Grounde d Wye Neutr al is the most common type of distribution system. It provides a 30° phase shift. The grounded neutral provides a direct path for common mode current caused by the drive output (see

Chapter 3

Rockwell Automation recommends the use of grounded neutral systems for these reasons:

and Chapter 6).

• Controlled path for common mode noise current

• Consistent line-to-ground voltage reference that minimizes insulation

stress

• Accommodation for system surge protection schemes

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 25

Chapter 2 Power Distribution

or

Single-phase Loads

Three-phase

Loads

Delta/Delta with Grounded Leg, or Four-wire Connected Secondary Delta

Delta/Delta with Grounded Leg or Four-wire Connected Secondary Delta is a common configuration with no phase shift between input and output. The grounded center tap provides a direct path for common mode current caused by the drive output.

Three-phase Open Delta with Single-phase Center Tapped

Three-phase Open Delta with Single-phase Center Tapped is a configuration providing a Three-phase delta transformer with one side tapped. This tap (the neutral) is connected to earth. The configuration is called the antiphase grounded (neutral) system.

The open delta transformer connection is limited to 58% of the 240V, single-phase transformer rating. Closing the delta with a third single-phase, 240V transformer provides full rating for the two single-phase, 240V transformers.

The phase leg opposite the midpoint has an elevated voltage when compared to earth or neutral. The hottest high leg must be positively identified throughout the electrical system. Make the hottest high leg the center leg in any switch, motor control, three-phase panel board, and so on. The NEC requires orange color tape to identify this leg.

26 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Power Distribution Chapter 2

Ungrounded Secondary

ATT EN TI ON : Grounding the transformer secondary is essential to the safety of

personnel and safe operation of the drive. Leaving the secondary floating causes dangerous high voltages between the chassis of the drive and the internal power structure components. Exceeding the voltage rating of the drive’s input metal oxide varistor (MOV) protection devices can cause a catastrophic failure. In all cases, the input power to the drive is referenced to ground.

If the system is ungrounded, other general precautions, such as a system level ground fault detector or system level line to ground suppressor, can be necessary. Or consider an isolation transformer with the secondary of the transformer grounded.

Refer to local codes regarding safety requirements. Also refer to Surge Protection

MOVs and Common Mode Capacitors on page 45.

High Resistance Ground

Grounding the Wye Secondary Neutral through a resistor is an acceptable method of grounding. Under a short circuit secondary condition, any of the output phases to ground do not exceed the normal line-to-line voltage. This is within the rating of the MOV input protection devices on the drive. The resistor is often used to detect ground current by monitoring the associated voltage drop. Because high frequency ground current can flow through this resistor, be sure to properly connect the drive motor leads by using the recommended cables and methods. In some cases, multiple drives (that can have one or more internal references to ground) on one transformer can produce a cumulative ground current that can trigger the ground fault interrupt circuit. Refer to Surge

Protection MOVs and Common Mode Capacitors on page 45.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 27

Chapter 2 Power Distribution

L1

L2

L3

PEN or N

PE

IMPORTANT

TN-S Five-wire System

TN-S Five-wire distribution systems are common throughout Europe, with the exception of the United Kingdom and Germany. Leg-to-leg voltage (commonly at 400V) powers three-phase loads. Leg-to-neutral voltage (commonly at 230V) powers single-phase loads. Neutral is a current conducting wire, and connects through a circuit breaker. The fifth wire is a separate ground wire. There is a single connection between ground and neutral, typically in the distribution system. Do not make connections between ground and neutral within the system cabinets.

AC Line Voltage

AC Line Impedance

In general, all Allen-Bradley drives are tolerant to a wide range of AC line voltage. Check the individual specifications for the drives you are installing.

Incoming voltage imbalances >2% can cause large unequal currents in a drive. Use an input line reactor when line voltage imbalances are >2%.

To prevent excess current that can damage drives during events such as line disturbances or certain types of ground faults, provide a minimum amount of impedance in front of the drives. In many installations, this impedance comes from the supply transformer and the supply cables. In some cases, an additional transformer or reactor is recommended. If any of these conditions exist, consider adding impedance (line reactor or transformer) in front of the drive:

• Installation site has switched power factor correction capacitors.

• Installation site has lightning strikes or voltage spikes in excess of 6000V

peak.

• Installation site has power interruptions or voltage dips in excess of 200V AC.

• The transformer is too large in comparison to the drive. See impedance recommendations on Table 4 on page 30

through Table 13 on page 41.

Tab le s 4 through 13 define the largest transformer size for each product and rating based on specific differences in construction, and is the

28 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

preferred method to follow.

Power Distribution Chapter 2

% impedance is the nameplate impedance of the transformer. Typical values range from 0.03 (3%) to 0.06 (6%).

Z

xfmr

=

(V

line-line

)

2

VA

* % Impedance

or

% impedance is the nameplate impedance of the transformer. Typical values range from 0.03 (3%) to 0.06 (6%).

Otherwise, use one of the following more conservative methods:

• For drives without built-in inductors – add line impedance whenever the transformer kVA is more than 10 times larger than the drive kVA, or the percent source impedance relative to each drive is less than 0.5%.

• For drives with built-in inductors – add line impedance whenever the transformer kVA is more than 20 times larger than the drive kVA, or the percent source impedance relative to each drive is less than 0.25%.

To identify drives with built-in inductors, see the product specific information in

Table 4 on page 30

through Table 13 on page 41. The shaded rows identify

products ratings without built-in inductors.

Use these equations to calculate the impedance of the drive and transformer:

Drive Impedance (in ohms)

V

Z

=

drive

3 * I

line-line

input-rating

Transformer Impedance (in ohms)

V

line-line

Z

=

xfmr

3 * I

* % Impedance

xfmr-rated

Transformer Impedance (in ohms)

V

line-line

Z

=

xfmr

3 * I

* % Impedance

xfmr-rated

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 29

Chapter 2 Power Distribution

EXAMPLE

IMPORTANT

Z

xfmr

Z

drive

0.2304

102.6

= 0.00224 = 0.22%=

The drive is rated 1 Hp, 480V, 2.7A input. The supply transformer is rated 50,000 VA (50 kVA), 5% impedance.

V

(V

line-line

3 * I

input-rating

2

)

line-line

* % Impedance =

VA

Z

=

drive

=

Z

xfmr

480V

= = 102.6 Ohms

3 * 2.7

2

480

* 0.05 = 0.2304 Ohms

50,000

Note that the percent (%) impedance has to be in per unit (5% becomes 0.05) for the formula.

0.22% is less than 0.5%. Therefore, this transformer is too big for the drive. Consider adding a line reactor.

Grouping multiple drives on one reactor is acceptable; however, the reactor percent impedance must be large enough when evaluated for each drive separately, not evaluated for all loads connected at once.

These recommendations are advisory and do not address all situations. Site specific conditions must be considered to assure a quality installation.

Table 4 - AC Line Impedance Recommendations for Bulletin 160 Drives

Bulletin Number

160

(1) Shaded rows identify drive ratings without built-in inductors. (2) Maximum suggested KVA supply without consideration for additional inductance.

Drive Catalog Number

-AA02 240 0.37(0.5) 15 3R4-B 6.5 4

-AA03 240 0.55 (0.75) 20 3R4-A 3 4

-AA04 240 0.75 (1) 30 3R4-A 3 4

-AA08 240 1.5 (2) 50 3R8-A 1.5 8

-AA12 240 2.2 (3) 75 3R12-A 1.25 12

-AA18 240 3.7 (5) 100 3R18-A 0.8 18

-BA01 480 0.37(0.5) 15 3R2-B 20 2

-BA02 480 0.55 (0.75) 20 3R2-A 12 2

-BA03 480 0.75 (1) 30 3R2-A 12 2

-BA04 480 1.5 (2) 50 3R4-B 6.5 4

-BA06 480 2.2 (3) 75 3R8-B 3 8

-BA10 480 3.7 (5) 100 3R18-B 1.5 18

Volts kW (H p) Max Sup ply

(1)

kVA

(2)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

30 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Table 5 - AC Line Impedance Recommendations for Bulletin 1305 Drives

Power Distribution Chapter 2

Bulletin Number

1305

(1) Shaded rows identify drive ratings without built-in inductors. (2) Maximum suggested KVA supply without consideration for additional inductance.

Drive Catalog Number

-AA02A 240 0.37(0.5) 15 3R4-A 3 4

-AA03A 240 0.55 (0.75) 20 3R4-A 4 4

-AA04A 240 0.75 (1) 30 3R8-A 1.5 8

-AA08A 240 1.5 (2) 50 3R8-A 1.5 8

-AA12A 240 2.2 (3) 75 3R18-A 0.8 18

-BA01A 480 0.37 (0.5) 15 3R2-B 20 2

-BA02A 480 0.55 (0.75) 20 3R2-B 20 2

-BA03A 480 0.75 (1) 30 3R4-B 6.5 4

-BA04A 480 1.5 (2) 50 3R4-B 6.5 4

-BA06A 480 2.2 (3) 75 3R8-B 3 8

-BA09A 480 3.7 (5) 100 3R18-B 1.5 18

Volts kW (H p) Max Sup ply

(1)

kVA

(2)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Table 6 - AC Line Impedance Recommendations for PowerFlex 4 Drives

Drive Drive Catalog

PowerF lex 4

Number

22AB1P5 240 0.2 (0.25) 15 3R2-A 12 2

22AB2P3 240 0.4 (0.5) 25 3R4-B 6.5 4

22AB4P5 240 0.75 (1.0) 50 3R8-B 3 8

22AB8P0 240 1.5 (2.0) 100 3R8-A 1.5 8

22AB012 240 2.2 (3.0) 125 3R12-A 1.25 12

22AB017 240 3.7 (5.0) 150 3R18-A 0.8 18

Volts kW (H p) Max Sup ply

(1)

kVA

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

22AD1P4 480 0.4 (0.5) 15 3R2-B 20 2

22AD2P3 480 0.75 (1.0 ) 30 3R4-C 9 4

22AD4P0 480 1.5 (2.0) 50 3R4-B 6.5 4

22AD6P0 480 2.2 (3.0) 75 3R8-C 5 8

22AD8P7 480 3.7 (5.0) 100 3R8-B 3 8

(1) Shaded rows identify drive ratings without built-in inductors.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 31

Chapter 2 Power Distribution

Table 7 - AC Line Impedance Recommendations for PowerFlex 40 Drives

Drive Drive Catalog

PowerF lex 40

(1) Shaded rows identify drive ratings without built-in inductors. (2) Maximum suggested KVA supply without consideration for additional inductance.

Number

22BB2P3 240 0.4 (0.5) 25 3R4-B 6.5 4

22BB5P0 240 0.75 (1.0) 50 3R8-B 3 8

22BB8P0 240 1.5 (2.0) 50 3R8-A 1.5 8

22BB012 240 2.2 (3.0) 50 3R12-A 1.25 12

22BB017 240 3.7 (5.0) 50 3R18-A 0.8 18

22BB024 240 5.5 (7.5) 100 3R25-A 0.5 25

22BB033 240 7.5 (10.0) 150 3R3 5-A 0.4 35

22BD1P4 480 0.4 (0.5) 15 3R2-B 20 2

22BD2P3 480 0.75 (1.0) 30 3R4-C 9 4

22BD4P0 480 1.5 (2.0) 50 3R4-B 6.5 4

22BD6P0 480 2.2 (3.0) 75 3R8-C 5 8

22BD010 480 3.7 (5.0) 100 3R8-B 3 8

22BD012 480 5.5 (7.5) 120 3R12-B 2.5 12

22BD017 480 7.5 (10.0) 150 3R18-B 1.5 18

22BD024 480 11.0 (15.0) 200 3R25-B 1.2 25

22BE1P7 600 0.75 (1.0) 20 3R2-B 20 2

22BE3P0 600 1.5 (2.0) 30 3R4-B 6.5 4

22BE4P2 600 2.2 (3.0) 50 3R4-B 6.5 4

22BE6P6 600 3.7 (5.0) 75 3R8-C 5 8

22BE9P9 600 5.5 (7.5) 120 3R12-B 2.5 12

22BE012 600 7.5 (10.0) 150 3R12-B 2.5 12

22BE019 600 11.0 (15.0) 200 3R18-B 1.5 18

Volts kW (Hp) Max Supply

(1)

kVA

(2)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

32 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Power Distribution Chapter 2

Table 8 - AC Line Impedance Recommendations for PowerFlex 400 Drives

Drive Drive Catalog

PowerF lex 400

(1) Shaded rows identify drive ratings without built-in inductors. (2) Maximum suggested KVA supply without consideration for additional inductance.

Number

22CB012 240 2.2 (3.0) 50 3R12-A N/A N/A

22CB017 240 3.7 (5.0) 50 3R18-A N/A N/A

22CB024 240 5.5 (7.5) 200 3R25-A 0.5 25

22CB033 240 7.7 (10.0) 275 3R35-A 0.4 35

22CB049 240 11 (15.0) 350 3R45-A 0.3 45

22CB065 240 15 (20.0) 425 3R55-A 0.25 55

22CB075 240 18.5 (25.0) 550 3R80-A 0.2 80

22CB090 240 22 (30.0) 600 3R100-A 0.15 100

22CB120 240 30 (40.0) 750 3R130-A 0.1 130

22CB145 240 37 (50.0) 800 3R160-A 0.075 160

22CD6P0 480 2.2 (3.0) N/A N/A N/A N/A

22CD010 480 3.7 (5.0) N/A N/A N/A N/A

22CD012 480 5.5 (7.5) N/A N/A N/A N/A

22CD017 480 7.5 (10) N/A N/A N/A N/A

22CD022 480 11 (15) N/A N/A N/A N/A

22CD030 480 15 (20) N/A N/A N/A N/A

22CD038 480 18.5 (25) N/A N/A N/A N/A

22CD045 480 22 (30) N/A N/A N/A N/A

22CD060 480 30 (40) N/A N/A N/A N/A

22CD072 480 37 (50) N/A N/A N/A N/A

22CD088 480 45 (60) N/A N/A N/A N/A

22CD105 480 55 (75) N/A N/A N/A N/A

22CD142 480 75 (100) N/A N/A N/A N/A

22CD170 480 90 (125) N/A N/A N/A N/A

22CD208 480 110 (150) N/A N/A N/A N/A

Volts kW (Hp) Max Supply

(1)

kVA

(2)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 33

Chapter 2 Power Distribution

Table 9 - AC Line Impedance Recommendations for PowerFlex 525 Drives

Drive Drive Catalog

PowerF lex 525

(1)

Number

25BB2P5 240 0.4 (0.5) 25 3R4-B 6.5 4

25BB5P0 240 0.75 (1.0) 50 3R8-B 3 8

25BB8P0 240 1.5 (2.0) 50 3R8-A 1.5 8

25BB012 240 2.2 (3.0) 50 3R12-A 1.25 12

25BB017 240 3.7 (5.0) 50 3R18-A 0.8 18

25BB024 240 5.5 (7.5) 100 3R25-A 0.5 25

25BB032 240 7.5 (10.0) 150 3R35-A 0.4 35

25BB048 240 11.0 (15.0) 150 3R55-B 0.5 55

25BB062 240 7.5 (10.0) 150 3R80-B 0.4 80

25BD1P4 480 0.4 (0.5) 15 3R2-B 20 2

25BD2P3 480 0.75 (1.0) 30 3R4-C 9 4

25BD4P0 480 1.5 (2.0) 50 3R4-B 6.5 4

25BD6P0 480 2.2 (3.0) 75 3R8-C 5 8

25BD010 480 3.7 (5.0) 100 3R8-B 3 8

25BD013 480 5.5 (7.5) 120 3R12-B 2.5 12

25BD017 480 7.5 (10.0) 150 3R18-B 1.5 18

25BD024 480 11.0 (15.0) 200 3R25-B 1.2 25

25BD030 480 15.0 (20.0) 200 3R35-B 0.8 35

25BD037 480 18.5 (25.0) 500 3R45-B 0.7 45

25BD043 480 22 (30.0) 500 3R45-B 0.7 45

Volts kW (H p) Max Sup ply

kVA

(2)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

25BE0P9 600 0.40(0.5) 20 3R2-B 20 2

25BE1P7 600 0.75 (1.0) 20 3R2-B 20 2

25BE3P0 600 1.5 (2.0) 30 3R4-B 6.5 4

25BE4P2 600 2.2 (3.0) 50 3R4-B 6.5 4

25BE6P6 600 3.7 (5.0) 75 3R8-C 5 8

25BE9P9 600 5.5 (7.5) 120 3R12-B 2.5 12

25BE012 600 7.5 (10.0) 150 3R12-B 2.5 12

25BE019 600 11.0 (15.0) 200 3R18-B 1.5 18

25BE022 600 15.0 (20.0) 200 3R25-B 1.2 25

25BE027 600 18.5 (25.0) 500 3R35-B 0.8 35

25BE032 600 22 (30.0) 500 3R35-B 0.8 35

(1) Shaded rows identify drive ratings without built-in inductors. (2) Maximum suggested KVA supply without consideration for additional inductance.

34 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Power Distribution Chapter 2

Table 10 - AC Line Impedance Recommendations for PowerFlex 70 Drives

Drive Drive Catalog

Number

Volts kW (Hp) Max Supply

(1)

kVA

(2)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

PowerF lex 7020AB2P2 240 0.37 (0.5) 25 3R2-D 6 2

20AB4P2 240 0.75 (1) 50 3R4-A 3 4

20AB6P8 240 1.5 (2) 50 3R8-A 1.5 8

20AB9P6 240 2.2 (3) 50 3R12-A 1.25 12

20AB015 240 4.0 (5) 200 3R18-A 0.8 18

20AB022 240 5.5 (7.5) 250 3R25-A 0.5 25

20AB028 240 7.5 (10) 300 3R3 5-A 0.4 35

20AB042 240 11 (15) 1000 3R4 5-A 0.3 45

20AB054 240 15 (20) 1000 3R8 0-A 0.2 80

20AB070 240 18.5 (25) 1000 3R80-A 0.2 80

20AC1P3 400 0.37 (0.5) 30 3R2-B 20 2

20AC2P1 400 0.75 (1) 50 3R2-B 20 2

20AC3P4 400 1.5 (2) 50 3R4-B 6.5 4

20AC5P0 400 2.2 (3) 75 3R4-B 6.5 4

20AC8P0 400 4.0 (5) 100 3R8-B 3 8

20AC011 400 5.5 (7.5) 250 3R12-B 2.5 12

20AC015 400 7.5 (10) 250 3R18-B 1.5 18

20AC022 400 11 (15) 300 3R25-B 1.2 25

20AC030 400 15 (20) 400 3R35-B 0.8 35

20AC037 400 18.5 (25) 750 3R35-B 0.8 35

20AC043 400 22 (30) 1000 3R45-B 0.7 45

20AC060 400 30 (40) 1000 3R55-B 0.5 55

20AC072 400 37 (50) 1000 3R80-B 0.4 80

Reactor Current Rating (amps)

(3)

continued

20AD1P1 480 0.37 (0.5) 30 3R2 -B 20 2

20AD2P1 480 0.75 (1) 50 3R2-B 20 2

20AD3P4 480 1.5 (2) 50 3R4-B 6.5 4

20AD5P0 480 2.2 (3) 75 3R4-B 6.5 4

20AD8P0 480 3.7 (5) 100 3R8 -B 3 8

20AD011 480 5.5 (7.5) 250 3R12-B 2.5 12

20AD015 480 7.5 (10) 250 3R18-B 1.5 18

20AD022 480 11 (15) 300 3R25-B 1.2 25

20AD027 480 15 (20) 400 3R35-B 0.8 35

20AD034 480 18.5 (25) 750 3R35-B N/A N/A

20AD040 480 22 (30) 1000 3R45-B N/A N/A

20AD052 480 30 (40) 1000 3R55-B N/A N/A

20AD065 480 37 (50) 1000 3R80-B N/A N/A

20AE0P9 600 0.37 (0.5) 30 3R2-B 20 2

20AE1P7 600 0.75 (1) 50 3R2-B 20 2

20AE2P7 600 1.5 (2) 50 3R4-C 9 4

20AE3P9 600 2.2 (3) 75 3R4- C 9 4

20AE6P1 600 4.0 (5) 100 3R8-C 5 8

20AE9P0 600 5.5 (7.5) 250 3R8-B 3 8

20AE011 600 7.5 (10) 250 3R12-B 2.5 12

20AE017 600 11 (15) 300 3R18-B 1.5 18

20AE022 600 15 (20) 400 3R25-B 1.2 25

20AE027 600 18.5 (25) 1000 3R35-B 0.8 35

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 35

Chapter 2 Power Distribution

Table 10 - AC Line Impedance Recommendations for PowerFlex 70 Drives (Continued)

Drive Drive Catalog

Number

Volts kW (Hp) Max Supply

(1)

kVA

(2)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

PowerF lex 7020AE031 600 22 (30) 1000 3R35-B 0.8 35

20AE042 600 30 (40) 1000 3R45-B 0.7 45

20AE051 600 37 (50) 1000 3R55-B 0.5 55

(1) Shaded rows identify drive ratings without built-in inductors. (2) Maximum suggested KVA supply without consideration for additional inductance.

(3) N/A = not available at time of printing.

Table 11 - AC Line Impedance Recommendations for PowerFlex 700/700S Drives

Drive Drive Catalog

PowerF lex 700/700S

For PowerF lex 700S, replace 20B with 20D.

Number

20BB2P2 240 0.37 (0.5) 100 3R2-D 6 2

20BB4P2 240 0.75 (1) 125 3R4-A 3 4

20BB6P8 240 1.5 (2) 200 3R8-A 1.5 8

20BB9P6 240 2.2 (3) 300 3R12-A 1.25 12

20BB015 240 3.7 (5) 400 3R18-A 0.8 18

20BB022 240 5.5 (7.5) 500 3R25-A 0.5 25

20BB028 240 7.5 (10) 750 3R35-A 0.4 35

20BB042 240 11 (15) 1000 3R45-A 0.3 45

20BB052 240 15 (20) 1000 3R80-A 0.2 80

20BB070 240 18.5 (25) 1000 3R8 0-A 0.2 80

20BB080 240 22 (30) 1000 3R100-A 0.15 100

20BB104 240 30 (40) 1000 3R130-A 0.1 130

20BB130 240 37 (50) 1000 3R130-A 0.1 130

20BB154 240 45 (60) 1000 3R160-A 0.075 160

20BB192 240 55 (75) 1000 3R200-A 0.055 200

20BB260 240 75 (100) 1000 3R320-A 0.04 320

Volts kW (Hp) Max Supply

KVA

(1)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

(3)

continued

20BC1P3 400 0.37 (5) 250 3R2-B 20 2

20BC2P1 400 0.75 (1) 250 3R2-B 20 2

20BC3P5 400 1.5(2) 500 3R4-B 6.5 4

20BC5P0 400 2.2 (3) 500 3R4-B 6.5 4

20BC8P7 400 4 (5) 500 3R8 -B 3 8

20BC011 400 5.5 (7.5) 750 3R1 2-B 2.5 12

20BC015 400 7.5 (10) 1000 3R18-B 1.5 18

20BC022 400 11 (15) 1000 3R25-B 1.2 25

20BC030 400 15 (20) 1000 3R35-B 0.8 35

20BC037 400 18.5(25) 1000 3R45-B 0.7 45

20BC043 400 22 (30) 1000 3R45-B 0.7 45

20BC056 400 30 (40) 1000 3R55-B 0.5 55

20BC072 400 37 (50) 1000 3R80-B 0.4 80

20BC085 400 45 (60) 1000 3R130-B 0.2 130

20BC105 400 55 (75) 1000 3R130-B 0.2 130

20BC125 400 55 (75) 1000 3R130-B 0.2 130

20BC140 400 75 (100) 1000 3R160-B 0.15 160

20BC170 400 90 (125) 1500 3R200-B 0.11 200

20BC205 400 110 (150) 1500 3R200- B 0.11 200

20BC260 400 132 (175) 2000 3RB32 0-B 0.075 320

36 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Power Distribution Chapter 2

Table 11 - AC Line Impedance Recommendations for PowerFlex 700/700S Drives (Continued)

Drive Drive Catalog

PowerF lex 700/700S

For PowerF lex 700S, replace 20B with 20D.

(1) Maximum suggested KVA supply without consideration for additional inductance

Number

20BD1P1 480 0.37 (0.5) 250 3R2-B 20 2

20BD2P1 480 0.75 (1) 250 3R2-B 20 2

20BD3P4 480 1.5 (2) 500 3R4-B 6.5 4

20BD5P0 480 2.2 (3) 500 3R4-B 6.5 4

20BD8P0 480 4.0 (5) 500 3R8-B 3 8

20BD011 480 5.5 (7.5) 750 3R12-B 2.5 12

20BD014 480 7.5 (10) 750 3R18-B 1.5 18

20BD022 480 11 (15) 750 3R25-B 1.2 25

20BD027 480 15 (20) 750 3R35-B 0.8 35

20BD034 480 18.5 (25) 1000 3R35-B 0.8 35

20BD040 480 22 (30) 1000 3R45-B 0.7 45

20BD052 480 30 (40) 1000 3R55-B 0.5 55

20BD065 480 37 (50) 1000 3R80-B 0.4 80

20BD077 480 45 (60) 1000 3R80-B 0.4 80

20BD096 480 55 (75) 1000 3R100- B 0.3 100

20BD125 480 75 (100) 1000 3R1 30-B 0.2 130

20BD140 480 75 (100) 1000 3R1 60-B 0.15 160

20BD156 480 90 (125) 1500 3R1 60-B 0.15 160

20BD180 480 110 (150) 1500 3R200-B 0.11 200

20BE0P9 600 0.37 (0.5) 250 3R2 -B 20 2

20BE1P7 600 0.75 (1) 250 3R2-B 20 2

20BE2P7 600 1.5 (2) 500 3R4-B 6.5 4

20BE3P9 600 2.2 (3) 500 3R4-B 6.5 4

20BE6P1 600 4.0 (5) 500 3R8 -B 3 8

20BE9P0 600 5.5 (7.5) 750 3R8 -B 3 8

20BE011 600 7.5 (10) 750 3R1 2-B 2.5 12

20BE017 600 11 (15) 750 3R25-B 1.2 25

20BE022 600 15 (20) 750 3R25-B 1.2 25

20BE027 600 18.5 (25) 1000 3R35-B 0.8 35

20BE032 600 22 (30) 1000 3R35-B 0.8 35

20BE041 600 30 (40) 1000 3R45-B 0.7 45

20BE052 600 37 (50) 1000 3R55-B 0.5 55

20BE062 600 45 (60) 1000 3R80-B 0.4 80

20BE077 600 55 (75) 1000 3R80-B 0.4 80

20BE099 600 75 (100) 1200 3R1 00-B 0.3 100

20BE125 600 90 (125) 1400 3R1 30-B 0.2 130

20BE144 600 110 (150) 1500 3R160-B 0.15 160

Volts kW (Hp) Max Supply

KVA

(1)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 37

Chapter 2 Power Distribution

Table 12 - AC Line Impedance Recommendations for PowerFlex 753/755 Drives

Drive Drive Catalog

PowerF lex 753/755

For PowerF lex 753, replace 20G with 20F.

Number

20G_RC2P1 400 0.75 (1) 250 3R2-B 20 2

20G_RC3P5 400 1.5(2) 500 3R4-B 6.5 4

20G_RC5P0 400 2.2 (3) 500 3R4-B 6.5 4

20G_RC8P7 400 4 (5) 500 3R8-B 3 8

20G_RC011 400 5.5 (7.5) 750 3R12-B 2.5 12

20G_RC015 400 7.5 (10) 1000 3R18- B 1.5 18

20G_C2P1 400 0.75 (1) 250 3R2-B 20 2

20G_C3P5 400 1.5(2) 500 3R4-B 6.5 4

20G_C5P0 400 2.2 (3) 500 3R4-B 6.5 4

20G_C8P7 400 4 (5) 500 3R8-B 3 8

20G_C011 400 5.5 (7.5 ) 750 3R12- B 2.5 12

20G_C015 400 7.5 (10) 1000 3R18-B 1.5 18

20G_C022 400 11 (15) 1000 3R25- B 1.2 25

20G_C030 400 15 (20) 1000 3R35- B 0.8 35

20G_C037 400 18.5(25) 1000 3R45- B 0.7 45

20G_C043 400 22 (30) 1000 3R45- B 0.7 45

20G_C060 400 30 (40) 1000 3R80- B 0.4 80

20G_C072 400 37 (50) 1000 3R80- B 0.4 80

20G_C085 400 45 (60) 1000 3R130 -B 0.2 130

20G_C105 400 55 (75) 1000 3R130 -B 0.2 130

20G_C125 400 55 (75) 1000 3R130 -B 0.2 130

20G_C140 400 75 (100) 1000 3R160-B 0.15 160

20G_C170 400 90 (125) 1500 3R200-B 0.11 200

20G_C205 400 110 (150) 2000 3R200-B 0.11 200

20G_C260 400 132 (175) 2500 3RB320-B 0.075 320

20G_C302 400 160 (214) 2500 3RB320-B 0.075 320

20G_C367 400 200 (268) 3000 3RB400-B 0.06 400

20G_C456 400 250 (335) 3500 3R500-B 0.05 500

20G_C460 400 250 (335) 3500 3R500-B 0.05 500

20G_C567 400 315(422) 400 0 3R600-B 0.04 600

20G_C650 400 355 (476) 4500 3R750-B 0.029 750

20G_C750 400 400 (536) 4500 3R750-B 0.029 750

20G_C770 400 400(536) 500 0 3R850-B 0.027 850

20G_C1K0 400 500 (670) 5000 3R1000-B 0.022 1000

20G_C1K2 400 560 (750) 5000 2 x 3R750-B 0.015 1500

20G_C1K4 400 630 (175) 5000 2 x 3R750-B 0.015 1500

20G_C1K5 400 850 (1070) 5000 2 x 3R850-B 0.014 1700

20G_C1K6 400 900 (1200) 5000 2 x 3R850-B 0.014 1700

20G_C2K1 400 1250 (1675) 5000 2 x 3R1000-B 0.011 2000

Volts kW (Hp) Max Supply

KVA

(1)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

20G_RD2P1 480 0.75 (1) 250 3R 2-B 20 2

20G_RD3P4 480 1.5(2) 500 3R4-B 6.5 4

20G_RD5P0 480 2.2 (3) 500 3R4-B 6.5 4

20G_RD8P0 480 4 (5) 500 3R 8-B 3 8

20G_RD011 480 5.5 (7.5) 750 3R12-B 2.5 12

20G_RD014 480 7.5 (10) 100 0 3R18-B 1.5 18

20G_D2P1 480 0.75 (1) 250 3R2-B 20 2

20G_D3P4 480 1.5 (2) 500 3R4-B 6.5 4

continued

38 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Power Distribution Chapter 2

Table 12 - AC Line Impedance Recommendations for PowerFlex 753/755 Drives (Continued)

Drive Drive Catalog

PowerF lex 753/755

For PowerF lex 753, replace 20G with 20F.

Number

20G_D5P0 480 2.2 (3) 500 3R4-B 6.5 4

20G_D8P0 480 4.0 (5) 500 3R8-B 3 8

20G_D011 480 5.5 (7.5) 750 3R12- B 2.5 12

20G_D014 480 7.5 (10) 750 3R18-B 1.5 18

20G_D022 480 11 (15) 750 3R 25-B 1.2 25

20G_D027 480 15 (20) 750 3R 35-B 0.8 35

20G_D034 480 18.5 (25) 1000 3R35-B 0.8 35

20G_D040 480 22 (30) 1000 3R45-B 0.7 45

20G_D052 480 30 (40) 1000 3R55-B 0.5 55

20G_D065 480 37 (50) 1000 3R80-B 0.4 80

20G_D077 480 45 (60) 1000 3R80-B 0.4 80

20G_D096 480 55 (75) 1000 3R100-B 0.3 100

20G_D125 480 75 (100) 1000 3R130-B 0.2 130

20G_D140 480 75 (100) 1000 3R160-B 0.15 160

20G_D156 480 90 (125) 1500 3R160-B 0.15 160

20G_D186 480 110 (150) 1500 3R200-B 0.11 200

20G_D248 480 150 (200) 2000 3RB320-B 0.075 320

20G_D302 480 187(250) 2500 3RB320-B 0.075 320

20G_D361 480 224 (300) 2500 3RB400-B 0.06 400

20G_D415 480 260 (350) 3000 3R500-B 0.05 500

20G_D430 480 260 (350) 3500 3R500-B 0.05 500

20G_D485 480 298 (400) 3500 3R600-B 0.04 600

20G_D545 480 336(450) 4000 3R600-B 0.04 600

20G_D617 480 373 (500) 4500 3R750-B 0.029 750

20G_D710 480 448 (600) 4500 3R750-B 0.029 750

20G_D740 480 485 (650) 4500 3R750-B 0.029 750

20G_D800 480 522 (700) 5000 3R850-B 0.027 850

20G_D960 480 597 (800) 5000 3R1000-B 0.022 1000

20G_D1K0 480 671 (900) 5000 3R1000-B 0.022 1000

20G_D1K2 480 746 (1000) 5000 2 x 3R750-B 0.015 1500

20G_D1K3 480 821 (1100) 5000 2 x 3R750-B 0.015 1500

20G_D1K4 480 933 (1250) 5000 2 x 3R850-B 0.014 1700

20G_D1K5 480 1007(1350) 5000 2 x 3R8 50-B 0.014 1700

20G_D2K0 480 1082 (1750) 5000 2 x 3R1000-B 0.011 2000

Volts kW (Hp) Max Supply

KVA

(1)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

20G_E1P7 600 0.75 (1) 250 3R2-B 20 2

20G_E2P7 600 1.5 (2) 500 3R4-B 6.5 4

20G_E3P9 600 2.2 (3) 500 3R4-B 6.5 4

20G_E6P1 600 4.0 (5 ) 500 3R8-B 3 8

20G_E9P0 600 5.5 (7 .5) 750 3R 8-B 3 8

20G_E011 600 7 .5 (10) 750 3R12-B 2.5 12

20G_E017 600 1 1 (15) 750 3R25-B 1.2 25

20G_E018 600 1 5 (15) 750 3R25-B 1.2 25

20G_E022 600 1 5 (20) 750 3R25-B 1.2 25

20G_E023 600 18.5 (25) 1000 3R35-B 0.8 35

20G_E024 600 18.5 (25) 1000 3R35-B 0.8 35

20G_E027 600 18.5 (25) 1000 3R35-B 0.8 35

20G_E028 600 18.5 (25) 1000 3R35-B 0.8 35

20G_E032 600 2 2 (30) 100 0 3R35-B 0.8 35

continued

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 39

Chapter 2 Power Distribution

Table 12 - AC Line Impedance Recommendations for PowerFlex 753/755 Drives (Continued)

Drive Drive Catalog

PowerF lex 753/755

For PowerF lex 753, replace 20G with 20F.

Number

20G_E033 600 2 2 (30) 100 0 3R35-B 0.8 35

20G_E041 600 3 0 (40) 100 0 3R45-B 0.7 45

20G_E042 600 3 0 (40) 100 0 3R45-B 0.7 45

20G_E052 600 3 7 (50) 100 0 3R55-B 0.5 55

20G_E053 600 3 7 (50) 100 0 3R55-B 0.5 55

20G_E063 600 4 5 (60) 100 0 3R80-B 0.4 80

20G_E077 600 5 5 (75) 100 0 3R80-B 0.4 80

20G_E099 600 7 5 (100) 1200 3R100 -B 0.3 100

20G_E125 600 9 0 (125) 1400 3R130 -B 0.2 130

20G_E144 600 1 10 (150) 1500 3R160-B 0.15 1 60

20G_E192 600 1 50 (200) 1500 3R200-B 0.11 2 00

20G_E242 600 1 85 (250) 2000 3RB320-B 0.075 320

20G_E289 600 2 24(300) 2000 3RB320-B 0.075 320

20G_E295 600 2 24(300) 2500 3RB320-B 0.075 320

20G_E355 600 2 61 (350) 2500 3RB400-B 0.06 400

20G_E395 600 2 98 (400) 2500 3RB400-B 0.06 400

20G_E435 600 3 36 (450) 3000 3R500-B 0.05 5 00

20G_E460 600 3 73 (500) 3000 3R500-B 0.05 5 00

20G_E510 600 3 73 (500) 3500 3R600-B 0.04 6 00

20G_E595 600 4 48 (600) 3500 3R600-B 0.04 6 00

20G_E630 600 3 12(700) 4500 3R750-B 0.029 750

20G_E760 600 5 97 (800) 5000 3R850-B 0.027 850

20G_E825 600 6 71 (900) 5000 3R850-B 0.027 850

20G_E900 600 7 09 (950) 5000 3R1000-B 0 .022 1000

20G_E980 600 7 46 (1000) 5000 3R1000-B 0.022 1000

20G_E1K1 600 821 (1100) 5000 2 x 3R600-B 0.02 1200

20G_E1K4 600 1044 (1400) 5000 2 x 3R750-B 0.015 1500

Volts kW (Hp) Max Supply

KVA

(1)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

continued

20G_F012 690 7.5 (10) 750 3R12-B 2.5 12

20G_F015 690 11 (15) 750 3R25-B 1.2 25

20G_F020 690 15 (20) 750 3R25-B 1.2 25

20G_F023 690 18.5 (25) 1000 3R 25-B 1.2 25

20G_F030 690 22 (30) 100 0 3R35-B 0.8 35

20G_F034 690 30 (40) 100 0 3R35-B 0.8 35

20G_F046 690 37 (50) 100 0 3R55-B 0.5 55

20G_F050 690 45 (60) 100 0 3R55-B 0.5 55

20G_F061 690 55 (75) 100 0 3R80-B 0.4 80

20G_F082 690 75 (100) 1200 3R100 -B 0.3 100

20G_F098 690 90 (125) 1200 3R100 -B 0.3 100

20G_F119 690 110 (150) 1400 3R130-B 0.2 130

20G_F142 690 132 (177) 1500 3R160-B 0.15 1 60

20G_F171 690 160 (215) 1500 3R200-B 0.11 2 00

20G_F212 690 200(268) 2000 3RB320-B 0.075 320

20G_F263 690 250 (335) 2000 3RB320-B 0.075 320

20G_F265 690 250 (335) 2500 3RB320-B 0.075 320

20G_F330 690 315 (422) 2500 3RB400-B 0.06 400

20G_F370 690 355 (476) 2500 3RB400-B 0.06 400

20G_F415 690 400(536) 2500 3R500-B 0.05 500

20G_F460 690 450(604) 3000 3R500-B 0.05 500

40 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Power Distribution Chapter 2

Table 12 - AC Line Impedance Recommendations for PowerFlex 753/755 Drives (Continued)

Drive Drive Catalog

PowerF lex 753/755

For PowerF lex 753, replace 20G with 20F.

(1) Maximum suggested KVA supply without consideration for additional inductance.

Number

20G_F500 690 500(670) 3000 3R500-B 0.05 500

20G_F590 690 560 (750) 3500 3R600-B 0.04 6 00

20G_F650 690 630 (845) 4500 3R750-B 0.029 750

20G_F710 690 710 (952) 4500 3R750-B 0.029 750

20G_F765 690 750 (1006) 5000 3R850-B 0.027 850

20G_F795 690 800 (1073) 5000 3R850-B 0.027 850

20G_F960 690 900 (1207) 5000 3R1000-B 0.022 1000

20G_F1K0 690 1000(1341) 5000 3R100 0-B 0.022 1000

20G_F1K4 690 1400 (1877) 5000 2 x 3R750-B 0.015 1500

Volts kW (Hp) Max Supply

KVA

(1)

3% Line Reactor Open Style 1321-

Reactor Inductance (mH)

Table 13 - AC Line Impedance Recommendations for Bulletin 1336 Drives

Drive

1336 PLUS, PLUS II IMPACT FORCE

Drive Catalog Number

AQF05 240 0.37 (0.5) 25 3R4-A 3.0 4

AQF07 240 0.56 (0.75) 25 3R4-A 3.0 4

AQF10 240 0.75 (1) 50 3R8-A 1.5 8

AQF15 240 1.2 (1.5) 75 3R8-A 1.5 8

AQF20 240 1.5 (2) 100 3R12-A 1.25 12

AQF30 240 2.2 (3) 200 3R12-A 1.25 12

AQF50 240 3.7 (5) 275 3R25-A 0.5 25

AQF75 240 5.5 (7.5) 300 3R25-A 0.5 25

A7 240 5.5 (7.5) 300 3R25-A 0.5 25

A10 240 7.5 (10) 350 3R3 5-A 0.4 35

A15 240 11 (15) 600 3R45-A 0.3 45

A20 240 15 (20) 800 3R80-A 0.2 80

A25 240 18.5 (25) 800 3R80-A 0.2 80

A30 240 22 (30) 950 3R80-A 0.2 80

A40 240 30 (40) 1000 3R130-A 0.1 130

A50 240 37 (50) 1000 3R160-A 0.075 160

A60 240 45 (60) 1000 3R200-A 0.55 200

A75 240 56 (75) 1000 3RB2 50-A 0.045 250

A100 240 75 (100) 1000 3RB320-A 0.04 320

A125 240 93 (125) 1000 3RB320-A 0.04 320

Volts kW (Hp) Max Supply

(1)

kVA

(2)(3)

3% Line Reactor Open Style, 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

(4)

BRF05 480 0.37 (0.5) 25 3R2-B 20 2

BRF07 480 0.56 (0.75) 30 3R2-B 20 2

BRF10 480 0.75 (1) 30 3R4-B 6.5 4

BRF15 480 1.2 (1.5) 50 3R4-B 6.5 4

BRF20 480 1.5 (2) 50 3R8 -B 3.0 8

BRF30 480 2.2 (3) 75 3R8 -B 3.0 8

BRF50 480 3.7 (5) 100 3R12-B 2.5 12

BRF75 480 5.5 (7.5) 200 3R18-B 1.5 18

BRF100 480 7.5 (10) 275 3R25-B 1.2 25

BRF150 480 11 (15) 300 3R25-B 1.2 25

BRF200 480 15 (20) 350 3R25-B 1.2 25

B015 480 11 (15) 350 3R25-B 1.2 25

B020 480 15 (20) 425 3R35-B 0.8 35

continued

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 41

Chapter 2 Power Distribution

Table 13 - AC Line Impedance Recommendations for Bulletin 1336 Drives (Continued)

Drive

1336 PLUS, PLUS II IMPACT FORCE

Drive Catalog Number

B025 480 18.5 (25) 550 3R3 5-B 0.8 35

B030 480 22 (30) 600 3R45-B 0.7 45

B040 480 30 (40) 750 3R55-B 0.5 55

B050 480 37 (50) 800 3R80-B 0.4 80

B060 480 45 (60) 900 3R80-B 0.4 80

B075 480 56 (75) 1000 3R100-B 0.3 100

B100 480 75 (100) 1000 3R130-B 0.2 130

B125 480 93 (125) 1400 3R160-B 0.15 160

B150 480 112 (150) 1500 3R200-B 0.11 N 200

B200 480 149 (200) 2000 3RB250-B 0.09 250

B250 480 187 (250) 2500 3RB320-B 0.075 320

B300 480 224 (300) 3000 3RB400-B 0.06 400

B350 480 261 (350) 3500 3R500-B 0.05 500

B400 480 298 (400) 4000 3R500-B 0.05 500

B450 480 336 (450) 4500 3R600-B 0.04 600

B500 480 373 (500) 5000 3R600-B 0.04 600

B600 480 448 (600) 5000 3R750-B 0.029 750

B700 480 (700) 5000 3R850- B 0.027 850

B800 480 (800) 5000 3R1000 -B 0.022 1000

BP/BPR250 480 187 (250) N/A N/A N/A N/A

BP/BPR300 480 224 (300) N/A N/A N/A N/A

BP/BPR350 480 261 (350) N/A N/A N/A N/A

BP/BPR400 480 298 (400) N/A N/A N/A N/A

BP/BPR450 480 336 (450) N/A N/A N/A N/A

BX040 480 30 (40) N/A N/A N/A N/A

BX060 480 45 (60) N/A N/A N/A N/A

BX150 480 112 (150) N/A N/A N/A N/A

BX250 480 187 (250) N/A N/A N/A N/A

Volts kW (Hp) Max Supply

(1)

kVA

(2)(3)

3% Line Reactor Open Style, 1321-

Reactor Inductance (mH)

Reactor Current Rating (amps)

(4)

CWF10 600 0.75 (1) 25 3R4-C 9 4

CWF20 600 1.5 (2) 50 3R4-C 9 4

CWF30 600 2.2 (3) 75 3R8-C 5 8

CWF50 600 3.7 (5) 100 3R8-B 3 8

CWF75 600 5.5 (7.5) 200 3R8-B 3 8

CWF100 600 7.5 (10) 200 3R12-B 2.5 12

CWF150 600 11 (15) 300 3R18-B 1.5 18

CWF200 600 15 (20) 350 3R25-B 1.2 25

C015 600 11 (15) 300 3R18-B 1.5 18

C020 600 15 (20) 350 3R25-B 1.2 25

C025 600 18.5 (25) 500 3R25-B 1.2 25

C030 600 22 (30) 600 3R35-B 0.8 35

C040 600 30 (40) 700 3R45-B 0.7 45

C050 600 37 (50) 850 3R55-B 0.5 55

C060 600 45 (60) 900 3R80-B 0.4 80

C075 600 56 (75) 950 3R80-B 0.4 80

C100 600 75 (100) 1200 3R100-B 0.3 100

C125 600 93 (125) 1400 3R130-B 0.2 130

C150 600 112 (150) 1500 3R160-B 0.15 160

C200 600 149 (200) 2200 3R200-B 0.11 200

continued

42 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Power Distribution Chapter 2

Table 13 - AC Line Impedance Recommendations for Bulletin 1336 Drives (Continued)

Drive

1336 PLUS, PLUS II IMPACT FORCE

(1) Shaded rows identify drive ratings without built-in inductors. (2) Maximum suggested KVA supply without consideration for additional inductance.

(3) 2000 KVA represents 2 MVA and greater. (4) N/A = not available at time of printing.

Drive Catalog Number

C250 600 187 (250) 2500 3R250-B 0.09 250

C300 600 224 (300) 3000 3R320-B 0.075 320

C350 600 261 (350) 3000 3R400-B 0.06 400

C400 600 298 (400) 4000 3R400-B 0.06 400

C450 600 336 (450) 4500 3R500-B 0.05 500

C500 600 373 (500) 5000 3R500-B 0.05 500

C600 600 448 (600) 5000 3R600-B 0.04 600

C650 600 (650) 5000 3R750-B 0.029 750

C700 600 (700) 5000 3R850-B FN-1 0.027 850

C800 600 (800) 5000 3R850-B FN-1 0.027 850

CP/CPR350 600 261 (350) N/A N/A N/A N/A

CP/CPR400 600 298 (400) N/A N/A N/A N/A

Volts kW (Hp) Max Supply

(1)

kVA

(2)(3)

3% Line Reactor Open Style, 1321-

Multi-drive Protection

Reactor Inductance (mH)

Reactor Current Rating (amps)

(4)

Use a separate line reactor for each drive that shares a common power line. Individual line reactors provide filtering between each drive to provide optimum surge protection for each drive. However, if it is necessary to group more than one drive on a single AC line reactor, use this process to verify that the AC line reactor provides a minimum amount of impedance:

• In general, up to five drives can be grouped on one reactor.

• Add the input currents of the drives in the group.

• Multiply that sum by 125%.

• Refer to 1321 Power Conditioning Products Technical Data, publication

1321-TD001

, to select a reactor with a maximum continuous current

rating greater than the multiplied current.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 43

Chapter 2 Power Distribution

EXAMPLE

f

L is the inductance of the reactor in henries and f is the AC line frequency.

Z

drive

=

V

line-line

3 * I

input-rating

480V

3 * 2.7

= = 102.6 Ohms

Z

reactor

= L * (2 * 3.14) * f = 0.0042 * 6.28 * 60 = 1.58 Ohms

Z

reactor

Z

drive

1.58

102.6

= 0.0154 = 1.54%=

• Use the formula below to verify that the impedance of the selected reactor is more than 0.5% (0.25% for drives with internal inductors) of the smallest drive in the group. If the impedance is too small, select a reactor with a larger inductance and same amperage, or regroup the drives into smaller groups and start over.

V

Z

drive

reactor

=

line-line

3 * I

input-rating

= L * 2 * 3.14 *

There are five drives. Each drive is rated 1 Hp, 480V, 2.7 A. These drives do not have internal inductors.

Total current is 5 x 2.7 A = 13.5 A

125% x Total current is 125% x 13.5 A = 16.9 A

From 1321 Power Conditioning Products Technical Data, publication 1321-

TD001, we selected the catalog number 1321-3R12-C reactor. This reactor has

a maximum continuous current rating of 18 A and an inductance of 4.2 mH (0.0042 henries).

44 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

1.54% is more than the 0.5% impedance recommended. The catalog number 1321-3R12-C reactor can be used for the five 2.7 A drives in this example.

Power Distribution Chapter 2

IMPORTANT

R

S

T

1

234

3-phase AC Input

Ground

Phase-to-phase MOV rating includes two phase-to -phase MOVs.

Phase-to-ground MOV rating includes one phase-to-phase MOV and one phase-to-ground MOV.

Surge Protection MOVs and Common Mode Capacitors

ATT EN TI ON : When installing a drive on an ungrounded, high-resistance, or

B-phase grounded distribution system, disconnect the phase-to-ground MOV circuit and the common mode capacitors from ground.

In some drives, a single jumper connects both the phase-to-ground MOV and the common mode capacitors to ground.

MOV Circuitry

Most drives are designed to operate on three-phase supply systems with symmetrical line voltages. To meet IEEE C62.41, these drives are equipped with MOVs that provide voltage surge protection as well as phase-to-phase and phaseto-ground protection. The MOV circuit is designed only for surge suppression (transient line protection), not for continuous operation.

Figure 12 - Typical MOV Configuration

With ungrounded distribution systems, the phase-to-ground MOV connection can become a continuous current path to ground. Exceeding the published phase-to-phase voltage, phase-to-ground voltage, or energy ratings can damage the MOV.

Suitable isolation is required for the drive when there is potential for abnormally high phase-to-ground voltages (in excess of 125% of nominal line-to-line voltage), or when the supply ground is tied to another system or equipment that could cause the ground potential to vary with operation. We recommend an isolation transformer when this condition exists.

Common Mode Capacitors

Many drives also contain common mode capacitors that are referenced to ground. In installations with ungrounded or high resistive ground systems, the common mode capacitors can capture high frequency common mode or ground fault currents. This can cause bus overvoltage conditions that can cause damage or drive faults. Systems that are ungrounded or have one phase grounded (commonly called B-phase grounded) apply higher than normal voltage stresses directly to the common mode capacitors and can lead to shortened drive life or damage.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 45

Chapter 2 Power Distribution

Use PowerFlex Drives with Regenerative Units

DC Bus Wiring Guidelines

ATT EN TI ON : If a regenerative unit (for example, 1336 REGEN line regeneration

package) or other active front end (AFE) is used as a bus supply or brake, disconnect the common mode capacitors as described in the user manual for the drive. This guards against possible equipment damage.

DC bus wiring refers to connecting the DC bus of an AC drive to the DC connections on another piece of equipment. That equipment can include any or all of these items:

• Additional AC drive

• Non-regenerative DC bus supply

• Regenerative DC bus supply

• Regenerative braking module

• Dynamic braking module

• Chopper module

For more information on the types of common DC bus configurations and applications, refer to PowerFlex AC Drives in Common Bus Configurations, publication DRIVES-AT002

.

Drive Lineup

Generally, it is desirable for the drive lineup to match the machine layout. However, if there is a mix of drive frame sizes used in the lineup, the general system layout places the largest drives closest to the rectifier source. The rectifier source does not need to be at the end of the system lineup. Many times it is advantageous to put the rectifier in the middle of the lineup, minimizing the distances to the farthest loads. This is needed to minimize the energy stored in the parasitic inductance of the bus structure and thus lower peak bus voltages during transient operation.

The system must be contained in one contiguous lineup. The bus cannot be interrupted to go to another cabinet for the remainder of the system drives. A contiguous lineup is needed to maintain low inductance.

46 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Power Distribution Chapter 2

IMPORTANT

L1

L2

L3

DC+

DC-

BR1 BR2

M1

L1

L2

L3

DC+

DC-

BR1 BR2

M2

L1

L2

L3

DC+

DC-

BR1 BR2

M3

DC-DC+

Bus Supply

Power Distribution Terminal Block

AC Dri veAC Drive AC Drive

DC Bus Connections

For reliable system operation, minimize the interconnection of drives to the DC bus and the inductance levels between the drives. Use a low inductance-type DC bus (for example, 0.35 μH/m or less).

Do not daisy chain the DC bus connections. Configure the DC bus connections in a star configuration to allow for proper fusing.

Figure 13 - Star Configuration of Common Bus Connections

Bus Bar Versus Cable

Follow these recommendations for using a bus bar versus a cable:

• A DC bus bar is recommended versus a cable.

• When a DC bus bar cannot be used, follow these guidelines for DC bus

cables: – Use twisted cable where possible, approximately one twist per inch.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 47

– Use cable rated for the equivalent AC voltage rating. The peak AC

voltage is equivalent to the DC voltage. For example, the peak AC voltage on a 480V AC system no load is 480 x 1.414 = 679V peak. The 679V peak corresponds to 679V DC at no load.

Chapter 2 Power Distribution

L1

L2

L3

DC+

DC+ DC-

DC-

BR1 BR2

BR

M1

L1

L2

L3

DC+

DC-

BR1 BR2

M2

BR1

BR2

PowerFlex 700

PowerFlex

PowerFlex 700

L1

L2

L3

DC+

DC-

BR+ BR-

M3

PowerFlex 40P

L1

L2

L3

DC+

DC-

BR+ BR-

M4

PowerFlex 40P

3-phase

Source

3-phase Reactor

Diode Bus

Supply

Braking Unit

1336-W*

Frame 0…4 Frame 0…4

Braking Chopper

Connect the brake unit closest to the largest drive. If all of the drives are the same rating, then connect the brake unit closest to the drive that regenerates the most.

In general, mount brake units within 3 m (9.8 ft) of the drive. Resistors for use with chopper modules must be within 30 m (98.4 ft) of the chopper module. Refer to the respective braking product documentation for details.

An RC snubber circuit is required when you use Allen-Bradley catalog number 1336-WA, 1336-WB, or 1336-WC brake choppers in the configurations listed below:

• A non-regenerative bus supply configuration that uses a PowerFlex diode bus supply.

• A shared AC/DC bus configuration containing a PowerFlex 700/700S Frame 0…4 drive, or PowerFlex 40P drive.

• A shared DC bus (piggy back) configuration when the main drive is a PowerFlex 700/700S Frame 0…4, or PowerFlex 40P drive.

The RC snubber circuit is required to prevent the DC bus voltage from exceeding the 1200V maximum brake chopper IGBT voltage. The 1336 brake chopper power-up delay time is 80 ms. During this time, the IGBT does not turn on. The RC snubber circuit must always be connected to the DC bus (found close to the braking chopper) to absorb the power-on voltage overshoot (see

Figure 14

).

The specifications for the RC snubber are described here:

• R = 10 Ω, 100 W, low inductance (less than 50 μH)

• C = 20 μF, 2000V

Figure 14 - Configuration Example of Diode Bus Supply with PowerFlex 700 Frame 0…4, PowerFlex 40P, 1336-W Braking Chopper and RC Snubber Circuit.

48 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Chapter 3

Grounding

This chapter discusses various grounding schemes for safety and noise reduction.

An effectively grounded scheme or product is one that is intentionally connected to earth through a ground connection or connections of sufficiently low impedance and having sufficient current-carrying capacity to prevent the buildup of voltages that can result in undue hazard to connected equipment or to persons (as defined by the US National Electric Code NFPA70, Article 100B).

Grounding of a drive or drive system is done for two basic reasons: safety (as defined above), and noise containment or reduction. While the safety ground scheme and the noise current return circuit can sometimes share the same path and components, they are considered different circuits with different requirements.

Grounding Safety Grounds

The object of safety grounding is to make sure that all metalwork is at the same ground (or earth) potential at power frequencies. Impedance between the drive and the building scheme ground must conform to the requirements of national and local industrial safety regulations or electrical codes. These regulations and codes vary based on country, type of distribution system, and other factors. Periodically check all ground connections and verify that the connections are secure and correct.

General safety requires that all metal parts are connected to earth with separate copper wire, or wires of the appropriate gauge. Always follow any specific directions for connecting a safety ground or protective earth (PE) directly to any piece of equipment.

Building Steel

If intentionally bonded at the service entrance, the incoming supply neutral or ground is bonded to the building ground. Building steel is typically the best representation of ground or earth. The structural steel of a building is generally bonded together to provide a consistent ground potential. If other means of grounding are used, such as ground rods, you must understand the voltage potential between ground rods in different areas of the installation. The type of soil, ground water level, and other environmental factors can greatly affect the voltage potential between ground points if they are not bonded to each other.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 49

Chapter 3 Grounding

IMPORTANT

Grounding PE or Ground

The drive safety ground, PE, must be connected to scheme or earth ground. This is the safety ground for the drive that is required by code. This point must be connected to adjacent building steel (girder, joist), a floor ground rod, bus bar, or building ground grid. Grounding points must comply with national and local industrial safety regulations or electrical codes. Some codes require redundant ground paths and periodic examination of connection integrity. Global drive systems requires the PE ground to be connected to the transformer ground feeding the drive system.

RFI Filter Grounding

The use of an optional radio frequency interference (RFI) filter can result in relatively high ground leakage currents. Therefore, use an RFI filter only in installations with grounded AC supply systems and RFI filters that are permanently installed and solidly grounded to the building power distribution ground. Make sure the incoming supply neutral is solidly connected to the same building power distribution ground. Some codes require redundant ground connections and periodic examination of connection integrity. Refer to the instructions supplied with the filter.

Do not use flexible cables or any plug or socket that can be accidentally disconnected.

Grounding Motors

The motor frame or stator core must be connected directly to the drive PE conne ction with a separate ground conductor. We recommended that each motor frame be grounded to building steel at the motor. Refer to Cable Trays on page 68 for more information.

Grounding and TN-S Five-wire Systems

Do not connect ground to neutral within a system cabinet if you use a TN-S Five-wire distribution system. The neutral wire is a current conducting wire. There is a single connection between ground and neutral, typically in the distribution system.

TN-S Five-wire distribution systems are common throughout Europe, with the exception of the United Kingdom and Germany. Leg-to-leg voltage (commonly at 400V) powers three-phase loads. Leg-to-neutral voltage (commonly at 230V) powers single-phase loads.

50 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Figure 15 - Cabinet Grounding with a TN-S Five-wire System

L1

L2 L3

PEN or N

PE

R

S

T

R

S

T

PE PE

PE

Input Transformer

System Cabinet

AC Dri ve

Single-

Phase Device

Cabinet Ground Bus

X

0

R

S

T

U

V

W

PE

A

B

C

PE

C

lg-m

C

lg-c

V

ng

Input Transformer

AC Dri ve

Path for Common

Mode Current

Motor Frame

Motor

Feedb ack Device

Path for Common

Mode Current

Path for Common

Mode Current

Path for Common

Mode Current

Path for Common

Mode Current

System Ground

Grounding Chapter 3

Noise Related Grounds

Use appropriate grounding schemes to reduce noise when installing PWM AC drives to reduce output that can produce high frequency common mode (coupled from output to ground) noise currents. These noise currents can cause sensitive equipment to malfunction if they are allowed to propagate.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 51

Chapter 3 Grounding

Earth Ground Potential

The grounding scheme can greatly affect the amount of noise and its impact on sensitive equipment. The power scheme is likely to be one of these three types:

• Ungrounded scheme

• Scheme with high resistance ground

• Fully grounded scheme

An ungrounded scheme (Figure 16

) does not provide a direct path for the common mode noise current, causing the current to seek other uncontrolled paths. This causes related noise issues.

Figure 16 - Ungrounded Scheme

A scheme with a high resistance ground (Figure 17) provides a direct path for common mode noise current, like a fully grounded scheme. Designers that are concerned with minimizing ground fault currents commonly choose high resistance ground schemes.

Figure 17 - Scheme with High Resistance Ground

A fully grounded scheme (Figure 18) provides a direct path for common mode noise currents. The use of grounded neutral systems is recommended for these reasons:

• Controlled path for common mode noise current.

• Consistent line-to-ground voltage reference that minimizes insulation

stress.

• Accommodation for system surge protection schemes.

52 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Grounding Chapter 3

Earth Ground Potential

Input Transformer

AC Dri ve

Condui t

Motor Frame

Motor

Connection to Drive

Structure or Optional

Cabinet Via Conduit

Connecto r

Strap

Incidental Contact

of Conduit Strap

Motor Frame

Ground

Connection to Ground Grid,

Girder, or Ground Rod

Connection to Cabinet Ground Bus

or Directly to Drive PE Terminal

Panel Ground Bus

Optional Enclosure

Building Ground Potential

Figure 18 - Fully Grounded Scheme

The installation and grounding practices to reduce common mode noise issues can be categorized into three ratings. The scheme used must consider additional costs against the operating integrity of all scheme components. If no sensitive equipment is present and noise is not an issue, the added cost of shielded cable and other components is not always justified.

Acceptable Grounding Practices

The scheme shown below is an acceptable ground layout for a single drive installation. However, conduit does not offer the lowest impedance path for any high frequency noise. If the conduit is mounted so that it contacts the building steel, it is likely that the building steel offers a lower impedance path and causes noise to inhabit the ground grid.

A

B

X

0

C

PE

R

S

T

U

V

W

PEPE

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 53

Chapter 3 Grounding

X

0

R

S

T

U

V

W

PEPE

A

B

C

PE

Input Transformer

AC Dri ve

Motor Frame

Motor

Connection to Drive Structure or

Optional Cabinet Via Grounding

Connector or Terminating Shield

at PE Terminal

Motor Frame

Ground

Connection to Ground Grid,

Girder, or Ground Rod

Connection to Cabinet Ground Bus

or Directly to Drive PE Terminal

Panel Ground Bus

Optional Enclosure

Building Ground Potential

Shielded or Armored

Cable with PVC Jacket

PVC

X

0

R

S

T

U

V

W

PEPE

A

B

C

PE

Input Transformer

Shielded or

Armored Cable

with PVC Jacket

Shielded or

Armored Cable

with PVC Jacket

AC Dri ve

Motor Frame

Motor

PVC

Motor Frame

Ground

Connection to Drive Structure or Optional Cabinet Via Grounding

Connector or Terminating Shield

at PE Terminal

Panel Ground Bus

Optional Enclosure

Connection to Cabinet Ground Bus or Directly

to Drive PE Terminal

Building Ground Potential

Connection to Drive

Structure or Optional

Cabinet Via Grounding

Connector or Terminating

Shield at PE Terminal

Connection to Ground Grid,

Girder or Ground Rod

Effective Grounding Practices

This scheme replaces the conduit with shielded or armored cable that has a PVC exterior jacket. This PVC jacket prevents accidental contact with building steel and reduces the possibility that noise can enter the ground grid.

Optimal – Recommended Grounding Practices

The fully grounded scheme provides the best containment of common mode noise. It uses PVC jacketed, shielded cable on both the input and the output to the drive. This method also provides a contained noise path to the transformer to keep the ground grid as clean as possible.

54 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Grounding Chapter 3

IMPORTANT

Cable Shields

Motor and Input Cables

Shields of motor and input cables must be bonded at both ends to provide a continuous path for common mode noise current.

Control and Signal Cables

Connect the shields of control cables only at one end. Cut back and insulate the other end. Follow these guidelines for connecting shields:

• The shield for a cable from one cabinet to another must be connected at the cabinet that contains the signal source.

• The shield for a cable from a cabinet to an external device must be connected at the cabinet end, unless specified by the manufacturer of the external device.

Never connect a shield to the common side of a logic circuit (doing so introduces noise into the logic circuit).

Connect the shield directly to a chassis ground.

Shield Splicing

Figure 19 - Spliced Cable That Uses a Shieldhead Connector

If the shielded cable needs to be stripped, strip it back as little as possible so the continuity of the shield is not interrupted. Avoid splicing motor power cables whenever possible. Ideally, run the motor cables continuously between the drive and

PE

motor terminals. The most common reason for interrupted cable/shield is to install a disconnect switch at the motor. In these cases, the preferred method of splicing is to use fully shielded bulkhead connectors.

Single Point – Connect a single safety ground point or ground bus bar directly to the building steel for cabinet installations. Ground all circuits, including the AC input ground conductor, independently and directly to this point/bar.

Isolated Inputs

If the analog inputs of the drive are from isolated devices and the output signal is not referenced to the ground, the inputs of the drive do not need to be isolated. An isolated input is recommended to reduce the possibility of induced noise if the signal from the transducer is referenced to ground and the ground potentials are varied (see Noise Related Grounds on page 51 external isolator can be installed if the drive does not provide input isolation.

). An

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 55

Chapter 3 Grounding

Notes:

56 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Best Practices

IMPORTANT

Drive Ground Plane (chassis) Bonded to Panel

This chapter discusses various installation practices.

Chapter 4

Mounting

Standard Installations

There are many criteria in determining the appropriate enclosure. Some of these include:

• Environment

• EMC compatibility/compliance

• Available space

• Access/Wiring

• Safety guidelines

Grounding to the Component Mounting Panel

In the example below, the drive chassis ground plane is extended to the mounting panel. The panel is made of zinc-plated steel that helps to create a proper bond between chassis and panel.

Figure 20 - Drive Chassis Ground Plane Extended to the Panel

Where TE and PE terminals are provided, ground each separately to the nearest point on the panel with flat braid.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 57

Chapter 4 Best Practices

In an industrial control cabinet, the equivalent to the copper ground layer of a printed circuit board (PCB) is the mounting panel. A panel made of zinc-plated, mild steel functions well as a ground plane. If painted, remove the paint at each mounting and grounding point.

Zinc-plated steel is strongly recommended due to its ability to bond with the drive chassis and resist corrosion. The disadvantage with painted panels, apart from the cost in labor to remove the paint, is the difficulty in making quality control checks to verify if the paint has been properly removed, and any future corrosion of the unprotected mild steel can compromise noise performance.

Plain stainless steel panels are also acceptable but are inferior to zinc-plated mild steel due to their higher ohms-per-square resistance.

Though not always applicable, a plated cabinet frame is also highly desirable because it makes a high frequency bond between panel and cabinet sections more reliable.

Doors

For doors 2 m (78 in.) in height, ground the door to the cabinet with two or three braided straps.

EMC seals are not normally required for industrial systems.

EMC Specific Installations

A steel enclosure is recommended to help guard against radiated noise to meet EMC standards. If the enclosure door has a viewing window, a laminated screen or a conductive optical substrate can block EMC.

Do not rely on the hinge for electrical contact between the door and the enclosure. Install a grounding wire. For doors 2 m (78 in.) in height, use two or three braided grounding straps between the door and the cabinet. EMC gaskets are not normally required for industrial systems.

Layout

Plan the cabinet layout so that drives are separated from sensitive equipment. Choose conduit entry points that allow any common mode noise to remain away from programmable logic controllers (PLCs) and other equipment that can be susceptible to noise. Refer to Moisture on page 72

for additional information.

58 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Best Practices Chapter 4

Back Panel

Weld ed St ud

Paint-free Area

Nut

Flat Washer

Mounting Bracket or

Ground Bus

Star Washer

If the mounting bracket is coated with a non-conductive

material (anodized, painted, and so on), scrape the material

off around the mounting hole.

Flat Washer

Back Panel

Bolt

Paint-free Area

Nut

Flat Washer

Mounting Bracket or Ground Bus

Star Washer

Nut

Flat Washer

Star Washer

If the mounting bracket is coated with a non-conductive

material (anodized, painted, or other), scrape the material off

around the mounting hole.

Hardware

You can mount the drive and/or mounting panel with either bolts or welded studs.

Figure 21 - Stud Mounting of Ground Bus or Chassis to Back Panel

Figure 22 - Bolt Mounting of Ground Bus or Chassis to Back Panel

If the drive chassis does not lay flat before the nuts/bolts are tightened, use additional washers as shims so that the chassis does not bend when you tighten the nuts.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 59

Chapter 4 Best Practices

U (T1)

V (T2)

W (T3)

PE

Braid wires pulled back in a 360° pattern

around the ground cone of the connector.

Drain wires pulled back in a 360° pattern

around the ground cone of the connector.

Metal locknut bonds the

connector to the panel.

Metal connector body makes direct

contact with the braid wires.

Ground Bushing

One or More Ground Leads

IMPORTANT

Conduit Entry

Entry Plates

In most cases, the conduit entry plate is a conductive material that is not painted. Make sure that the surface of the plate is clean of oil or contaminants. If the plate is painted, follow one of these steps to make a good connection:

• Use a connector that cuts through the paint and makes a high quality connection to the plate material.

• Remove the paint around the holes down to the bare metal one inch in from the edge of the plate. Grind down the paint on the top and bottom surfaces. Use a high quality joint compound when reassembling to help prevent corrosion.

Cable Connectors/Glands

Choose cable connectors or glands that offer the best cable protection, shield termination, and ground contact. Refer to Shield Termination on page 69 more information.

Shield Terminating Connectors

for

The cable connector must provide good 360o contact and low transfer impedance from the shield or armor of the cable to the conduit entry plate at both the motor and the drive (or drive cabinet) for electrical bonding.

SKINTOP

MS-SC/MS-SCL cable grounding connectors and NPT/PG adapters from LAPPUSA are good examples of this type of shield terminating glands.

Figure 23 - Terminating the Shield with a Connector

This is mandatory for CE compliant installations, to meet requirements for containing radiated electromagnetic emissions.

60 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Best Practices Chapter 4

U (T1)

V (T2)

W (T3)

PE PE

Flying Lead Soldered

to Braid

Exposed Shield

One or More Ground Leads

IMPORTANT

Shield Termination via Pigtail (lead)

If a shield terminating connector is not available, the ground conductors or shields must be terminated to the appropriate ground terminal. If necessary, use a compression fitting for ground conductors and/or shields together as they leave the cable fitting.

Figure 24 - Terminating the Shield with a Pigtail Lead

Ground Connections

This is an acceptable industry practice for most installations to minimize stray common mode currents.

Pigtail termination is the least effective method of noise containment, and is not recommended for these conditions:

• If the cable length is greater than 1 m (3.2 ft) or extends beyond the panel

• If used in very noisy areas

• If the cables are for noise-sensitive signals (for example, registration or

encoder cables)

• If strain relief is required

If a pigtail is used, pull and twist the exposed shield after separation from the conductors. Solder a flying lead to the braid to extend its length.

Make sure that ground conductors are properly connected to assure safe and adequate connections.

For individual ground connections, use star washers and ring lugs to make connections to mounting plates or other flat surfaces that do not provide proper compression lugs.

If a ground bus system is used in a cabinet, follow the bus bar mounting diagrams.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 61

Chapter 4 Best Practices

Bolt

Star Washer

Component Grounding

Conduc tor

Ground Lug

Tapped Hole

Ground Bus

Component Grounding

Conduc tors

Star Washer

Bolt

Area Without Paint

Weld ed St ud

Ground Lug

Star Washer

Component Ground

Conducto r

Nut

Component Ground

Conducto r

Figure 25 - Connections to Ground Bus

Figure 26 - Ground Connections to Enclosure Wall

Do not lay one ground lug directly on top of the other. This type of connection can become loose due to compression of the metal lugs. Sandwich the first lug between a star washer and a nut with another star washer following. After tightening the nut, sandwich the second lug between the first nut and a second nut with a captive star washer.

62 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Figure 27 - Multiple Connections to Ground Stud or Bolts

Best Practices Chapter 4

Wire Routing

General

When routing wiring to a drive, separate high voltage power and motor leads from I/O and signal leads. To maintain separate routes, route these in separate conduit or use tray dividers.

Category Wiring

Power 1 AC power (600V or greater) 2.3kV 3-phase AC lines 0 3 (9) 3 (9) 3 (18) Refer to spacing

Control 5 115V AC/DC logic Relay logic/PLC I/O

Signal (process)

Signal (comm)

Level

2 AC power (less than 600V) 460V 3-phase AC lines 3 (9) 0 3 (6) 3 (12) Refer to spacing

3 AC power AC motor

4 Dynamic brake cables Refer to spacing note 7

6 24V AC/DC logic PLC I/O

7 Analog signals, DC supplies Reference/Feedback

8 Digital (high speed) I/O, encoder, counter

9 Serial communication RS-232, 422 to

11 Serial communication

Signal Definition Signal Examples Minimum Spacing (in inches) between Levels in Steel

motor thermostat

115V AC power Power supplies,

Digital (low speed) TTK

(greater than 20k total)

instruments

signal, 5…24V DC

pulse tach

terminals/printers

ControlNet, DeviceNet, remote I/ O, Data Highway

Conduits (cable trays)

1 2/3/4 5/6 7/8 9/10/11

note 6

3 (9) 3 (6) 0 3 (9) Refer to spacing

3 (18) 3 (12) 3 (9) 0 1 (3) Refer to spacing

Refer to spacing note 6

1 (3) 0

note 6

Spacing Notes on page 64

Refer to spacing notes 1, 2, and 5

Refer to spacing

, 2, and 5

notes 1

notes 2, 3, 4, and 5

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 63

Chapter 4 Best Practices

EXAMPLE

IMPORTANT

Spacing relationship between 480V AC incoming power leads and 24V DC logic leads:

• 480V AC leads are Level 2; 24V AC leads are Level 6.

• For separate steel conduits, the conduits must be 76 mm (3 in.) apart.

• In a cable tray, the two groups of leads must be 152 mm (6 in.) apart.

Spacing Notes

1. Both outgoing and return current carrying conductors are pulled in the same conduit or laid adjacent in tray.

2. These cable levels can be grouped together: a. Level 1: Equal to or above 601V. b. Levels 2, 3, and 4 can have respective circuits pulled in the same conduit

or layered in the same tray.

c. Levels 5 and 6 can have respective circuits pulled in the same conduit or

layered in the same tray.

The cable bundle must not exceed conditions of NEC 310.

d. Levels 7 and 8 can have respective circuits pulled in the same conduit or

layered in the same tray.

Encoder cables run in a bundle can experience some amount of EMI coupling. The circuit application dictates separate spacing.

e. Levels 9, 10, and 11 can have respective circuits pulled in the same

conduit or layered in the same tray.

Communication cables run in a bundle can experience some amount of EMI coupling and corresponding communication faults. The application dictates separate spacing.

3. Level 7 through level 11 wires must be shielded per recommendations.

4. In cable trays, steel separators are advisable between the class groupings.

5. If conduit is used, it must be continuous and composed of magnetic steel.

6. This table lists the spacing of communication cables, levels 2 through 6.

Conduit Spacing Through Air Spacing

115V = 25.4 mm (1 in.) 115V = 50.8 mm (2 in.)

230V = 38.1 mm (1.5 in.) 230V = 101.6 mm (4 in.)

460/575V = 76.2 mm (3 in.) 460/575V = 203.2 mm (8 in.)

575V = proportional to 152.4 mm (6 in.) per 1000V 575V proportional to 304.8 mm (12 in.) per 1000V

64 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Best Practices Chapter 4

Drive Power Wiri ng

PWM Drives

Power Distribution Ter m in al s

Ground Bus

Sensitive

Equipme nt

Programmable Logic

Controller and Other

Control Circuits

Drive Control and Communications Wiring

7. If more than one brake module is required, the first module must be mounted within 3.0 m (10 ft) of the drive. Each remaining brake module can be a maximum distance of 1.5 m (5 ft) from the previous module. Resistors must be within 30 m (100 ft) of the chopper module.

Within A Cabinet

When multiple equipment is mounted in a common enclosure, group the input and output conduit/armor to one side of the cabinet as shown in Figure 28 Separate any PLC or other susceptible equipment cabling to the opposite side of the enclosure to minimize the effects of drive-induced noise currents.

Figure 28 - Separating Susceptible Circuits

.

Common mode noise current returning on the output conduit, shielding, or armor can flow into the cabinet bond and most likely exit through the adjacent input conduit/armor bond near the cabinet top, well away from sensitive equipment (such as the PLC). Common mode current on the return ground wire from the motor flows to the copper PE bus and back up the input PE ground wire, also away from sensitive equipment (Refer to Proper Cabinet Ground -

Drives and Susceptible Equipment on page 66).

If a cabinet PE ground wire is used, connect the wire from the same side of the cabinet as the conduit/armor connections. This keeps the common mode noise shunted away from the PLC backplane.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 65

Chapter 4 Best Practices

Incoming Power Conduit/Armor

Common Mode Current on Armor or Condui t

Output Conduit or Armor

(bonded to cabinet)

Common Mode Current on Cabinet

Backplane/Subpanel

Cabinet Backplane/

Subpanel

IMPORTANT

Figure 29 - Proper Cabinet Ground - Drives and Susceptible Equipment

UV WPEUV WPE

RS TPE

Within Conduit

Do not route more than three sets of motor leads (three drives) in the same conduit. Maintain fill rates per applicable electrical codes.

If possible, avoid running incoming power leads and motor leads in the same conduit for long runs.

Do not run power or motor cables with control or communications cables in the same conduit.

66 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Best Practices Chapter 4

Not Recommended Good Solution Better Solution

Loops, Antennas, and Noise

When routing signal or communication wires, do not use routes that produce loops. Wires that form a loop can form an efficient antenna. Antennas work well in both receive and transmit modes, and these loops can be responsible for noise received into the system and noise radiated from the system. Run feed and return wires together rather than form a loop. Twisting the pair together further reduces the antenna effects (see Figure 30

Figure 30 - Avoid Loops in Wiring

).

Conduit

Magnetic steel conduit is preferred. This type of conduit provides the best magnetic shielding. However, not all applications allow the use of magnetic steel conduit. Stainless steel or PVC can be required. Conduit other than magnetic steel does not provide the same level of shielding for magnetic fields induced by the motor and input power currents.

Install the conduit so it provides a continuous electrical path through the conduit itself. This path can become important in the containment of high frequency noise.

Pull the wire gently and carefully through the conduit. Do not nick the wire insulation when pulling the wires through the conduit. Insulation damage can occur when nylon coated wiring, such as thermoplastic high heat-resistant nylon-coated (THHN) or thermoplastic heat and water-resistant nylon-coated (THWN), is pulled through conduit, particularly 90° bends. Nicking can significantly reduce or remove the insulation. Do not use water-based lubricants with nylon coated wire such as THHN.

Do not route more than three sets of motor cables in one conduit. Maintain the proper fill rates per the applicable electrical codes.

Do not rely on the conduit as the ground return for a short circuit. Route a separate ground wire inside the conduit with the motor or input power wires.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 67

Chapter 4 Best Practices

IMPORTANT

Bundled and Anchored to Tray

Recommended

Arrangements for

Multiple Cable Sets

Cable Trays

When laying cable in cable trays, do not randomly distribute them. Bundle the power cables for each drive together and anchored them to the tray. Keep a minimum separation of one cable width between bundles to reduce overheating and cross-coupling. Current flowing in one set of cables can induce a hazardous voltage and/or excessive noise on the cable set of another drive, even when no power is applied to the second drive.

Figure 31 - Recommended Cable Tray Practices

Carefully arrange the geometry of multiple cable sets. Keep conductors within each group bundled. Arrange the order of the conductors to minimize the current that is induced between sets and to balance the currents. This is critical on drives with power ratings of 200 Hp (150 kW) and higher.

Maintain separation between power and control cables. When laying out a cable tray for large drives, make sure that the cable tray or conduit containing the signal wiring is separated from the conduit or trays containing power or motor wiring by 1 m (3.2 ft) or more. Electromagnetic fields from power or motor currents can induce currents in the signal cables. Dividers also provide excellent separation.

68 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

T

PE

RS

T

RS

PE

T

PE

T

RS

S

T

PE

R

Best Practices Chapter 4

Shield Termination

Refer to Shield Splicing on page 55 to splice shielded cables. These methods are acceptable if the shield connection to the ground is not accomplished by the gland or connector. Refer to the table associated with each type of clamp for advantages and disadvantages.

Termination via Circular Clamp

Use the circular section clamping method to clamp the cable to the main panel closest to the shield terminal. The preferred method for grounding cable shields is clamping the circular section of 360° bonding (see Figure 32 has the advantage of covering a wide variety of cable diameters and drilling/ mounting is not required. The disadvantages are cost and availability in all areas.

Figure 32 - Commercial Cable Clamp (heavy duty)

). This method

Plain copper saddle clamps (see Figure 33) are sold in many areas for plumbing purposes, but are very effective and available in a range of sizes. They are low cost and offer good strain relief as well. You must drill mounting holes to use them.

Figure 33 - Plain Copper Saddle Clamp

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 69

Chapter 4 Best Practices

IMPORTANT

SKINTOP MS-SC/MS-SCL cable grounding

connectors and NPT/PG adapters from LAPPUSA

are good examples of standard cable clamp shield

terminating gland.

Shield Termination via Pigtail (lead)

If a shield terminating connector is not available, the ground conductors and/or shields must be terminated to the appropriate ground terminal. If necessary, use a compression fitting on the ground conductors, or shield together as they leave the cable fitting.

Pigtail termination is the least effective method of noise containment.

Pigtail termination is not recommended for these conditions:

• If the cable length is greater than 1 m (3.2 ft) or extends beyond the panel

• If used in very noisy areas

• If the cables are for noise sensitive signals (for example, registration or

encoder cables)

• If strain relief is required

If a pigtail is used, pull and twist the exposed shield after separation from the conductors. To extend the length, solder a flying lead to the braid.

Shield Termination via Cable Clamp

Standard Cable

Grounding cable glands are a simple and effective method for terminating shields while offering excellent strain relief. They are applicable only when entry is through a cabinet surface or bulkhead.

The cable connector must provide good 360° contact and low transfer impedance from the shield or armor of the cable to the conduit entry plate at both the motor and the drive (or drive cabinet) for electrical bonding.

70 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Best Practices Chapter 4

The Tek-Mate Fast-Fit cable clamp by O-Z/Gedney is

a good example of an armored cable terminator.

Armored Cable

Armored cable can be terminated in a similar manner to standard cable.

Conductor Termination

Terminate power, motor, and control connections to the drive terminal blocks. User manuals list minimum and maximum wire gauges, tightening torque for terminals, and recommended lug types if stud connections are provided. Use a connector with three ground bushings when you use a cable with three ground conductors. Follow applicable electric codes when bending radii minimums.

Power TB

Power terminals are normally fixed (non pull apart) and can be cage clamps, barrier strips, or studs for ring-type crimp lugs depending on the drive style and rating. Cage clamp styles can require a non-standard screwdriver. Crimp lugs require a crimping tool. On smaller sizes, a stripping gauge is sometimes provided on the drive to assist in the amount of insulation to remove. Normally the three-phase input is not phase sensitive. That is, the sequence of the A, B, and C phases has no effect on the operation of the drive or the direction of motor rotation.

Control TB

Control terminal blocks are either pull apart or fixed (non pull apart). Terminals are either spring clamp type or barrier strip. A stripping gauge is sometimes provided on the drive to assist in the amount of insulation to remove. Some control connections, such as analog input and output signals, are sensitive to polarity. Consult the applicable user manual for correct connection.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 71

Chapter 4 Best Practices

IMPORTANT

Signal TB

If an encoder or tachometer feedback is used, a separate terminal block or blocks is sometimes provided.

Consult the user manual for these phase-sensitive connections. Improper wiring can lead to incorrect drive operation.

Cables terminated here are typically shielded and the signals being carried are generally more sensitive to noise. Carefully check the user manual for recommendations on shield termination. Some shields can be terminated at the terminal block, and other shields are terminated at the entry point.

Moisture

Refer to NEC Article 100 for definitions of damp, dry, and wet locations. The U.S. NEC permits the use of heat-resistant thermoplastic wire in both dry and damp applications (Table 310-13). However, PVC insulation material is more susceptible to absorbing moisture than XLPE insulation material (XHHW-2) identified for use in wet locations. Because the PVC insulating material absorbs moisture, the corona inception voltage (CIV) insulation capability of the damp or wet THHN was found to be less than ½ of the same wire when dry. For this reason, certain industries where water is prevalent in the environment do not use THHN wire with IGBT drives.

Based on Rockwell Automation research, tests have determined that the cable type described below is superior to loose wires in dry, damp, and wet applications and can significantly reduce capacitive coupling and common mode noise:

PVC jacketed, shielded type TC with XLPE conductor insulation designed to meet NEC code designation cross-linked polyethylene high heat-resistant water-resistant (XHHW-2) (use in wet locations per the U.S. NEC, Table 310-13).

Other cable types for wet locations include continuous welded armor cables or CLX-type cables.

72 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Chapter 5

Reflected Wave

This chapter discusses the reflected wave phenomenon and its impact on drive systems.

Description

Effects On Wire Types

The inverter section of a drive does not produce sinusoidal voltage, but rather a series of voltage pulses created from the DC bus. These pulses travel down the motor cables to the motor. The pulses are then reflected back to the drive. The reflection is dependent on the rise time of the drive output voltage, cable characteristics, cable length, and motor impedance. If the voltage reflection is combined with another subsequent pulse, peak voltages can be at a destructive level. A single IGBT drive output can have reflected wave transient voltage stresses of up to twice (2 pu, or per unit) the DC bus voltage between its own output wires. Multiple drive output wires in a single conduit or wire tray further increase output wire voltage stress between multi-drive output wires that are touching. One drive can have a (+) 2 pu stress, while another drive can simultaneously have a (-) 2 pu stress.

Wires with dielectric constants greater than 4 cause the voltage stress to shift to the air gap between the wires that are barely touching. This electric field can be high enough to ionize the air surrounding the wire insulation and cause a partial discharge mechanism (corona) to occur. The electric field distribution between wires increases the possibility for corona and greater ozone production. This ozone attacks the PVC insulation and produces carbon tracking, leading to the possibility of insulation breakdown.

Based on field and internal testing, Rockwell Automation has determined conductors manufactured with poly-vinyl chloride (PVC) wire insulation are subject to a variety of manufacturing inconsistencies that can lead to premature insulation degradation when used with IGBT drives. Flame-retardant heatresistant thermoplastic insulation is the type of insulation listed in the NEC code for the THHN wire designation. This type of insulation is commonly referred to as PVC. In addition to manufacturing inconsistencies, the physical properties of the cable can change due to environment, installation, and operation that can also lead to premature insulation degradation.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 73

Chapter 5 Reflected Wave

This section provides a summary of our findings:

• Due to inconsistencies in manufacturing processes or wire pulling, air voids can also occur in the THHN wire between the nylon jacket and PVC insulation. Because the dielectric constant of air is much lower than the dielectric constant of the insulating material, the transient reflected wave voltage can appear across these voids. If the corona inception voltage (CIV) for the air void is reached, ozone is produced. Ozone attacks the PVC insulation leading to a breakdown in cable insulation.

• Asymmetrical construction of the insulation has also been observed for some manufacturers of PVC wire. A wire with a 15 mil specification was observed to have an insulation thickness of 10 mil at some points. The smaller the insulation thickness, the less voltage the wire can withstand.

• THHN jacket material has a relatively brittle nylon that lends itself to damage (for example, nicks and cuts) when pulled through conduit on long wire runs. This issue is of even greater concern when the wire is being pulled through multiple 90° bends in the conduit. These nicks can be a starting point for CIV leading to insulation degradation.

• During operation, the conductor heats up and a coldflow condition can occur with PVC insulation at points where the unsupported weight of the wire can stretch the insulation. This has been observed at 90° bends where wire is dropped down to equipment from an above wireway. This coldflow condition produces thin spots in the insulation that lowers the voltage withstand capability of the cable.

• Refer to NEC Article 100 for definitions of damp, dry, and wet locations. The U.S. NEC permits the use of heat-resistant thermoplastic wire in both dry and damp applications (Table 310-13). However, PVC insulation material is more susceptible to absorbing moisture than XLPE insulation material (XHHN-2) identified for use in wet locations. Because the PVC insulating material absorbs moisture, the Corona Inception Voltage insulation capability of the damp or wet THHN was found to be less than ½ of the same wire when dry. For this reason, certain industries where water is prevalent in the environment do not use THHN wire with IGBT drives. Rockwell Automation strongly suggests the use of XLPE insulation for wet areas.

Length Restrictions For Motor Protection

74 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

To protect the motor from reflected waves, limit the length of the motor cables from the drive to the motor. The user manual for each drive lists the lead length limitations based on drive size and the quality of the insulation system in the chosen motor.

If the distance between drive and motor must exceed these limits, contact the local office or factory for analysis and advice. Refer to Appendix A tables.

for complete

Chapter 6

X

0

R

S

T

U

V

W

PE

A

B

C

PE

C

lg-m

C

lg-c

V

ng

Input Transformer

AC Dri ve

Motor Frame

Feedb ack Device

Motor

System G round

Path for Common

Mode Current

Path for Common

Mode Current

Path for Common

Mode Current

Path for

Common Mode

Curren t

Path for Common

Mode Current

Electromagnetic Interference

This chapter discusses types of electromagnetic interference and its impact on drive systems.

What Causes Common Mode Noise

Faster output dV/dt transitions of IGBT drives increase the possibility for increased common mode (CM) electrical noise. Common mode noise is a type of electrical noise induced on signals with respect to ground.

Electrical noise from drive operation can interfere with adjacent sensitive electronic equipment, especially in areas where many drives are concentrated. Generating common mode currents by varying frequency inverters is similar to the common mode currents that occur with DC drives, although AC drives produce a much higher frequency then DC drives (250 kHz…6 MHz). Inverters have a greater potential for exciting circuit resonance because of very fast turn on switches causing common mode currents to look for the lowest impedance path back to the inverter. The dV/dt and di/dt from the circulating ground currents can couple into the signal and logic circuits, causing improper operation and possible circuit damage. When conventional grounding techniques do not work, you must use high frequency bonding techniques. If installers do not use these techniques, motor bearing currents increase and system circuit boards have the potential to fail prematurely. Currents in the ground system can cause problems with computer systems and distributed control systems.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 75

Chapter 6 Electromagnetic Interference

Containing Common Mode Noise With Cabling

The type of cable that is used can affect the ability to contain common mode noise in a system that incorporates a drive.

Conduit

The combination of a ground conductor and conduit contains most capacitive current and returns it to the drive without polluting the ground grid. A conduit can still have unintended contact with grid ground structure due to straps, support, and so on. The AC resistance characteristics of earth are generally variable and unpredictable, making it difficult to know how noise current is divided between wire, conduit, or the ground grid.

Shielded or Armored Power Cable

The predominant return path for common mode noise is the shield or armor itself when you use shielded or armored power cables. Unlike conduit, the shield or armor is isolated from accidental contact with grounds by a PVC outer coating. The coating makes the majority of noise current flow in the controlled path and very little high frequency noise flows into the ground grid.

Noise current returning on the shield or safety ground wire is routed to the drive PE terminal, down to the cabinet PE ground bus, and then directly to the grounded neutral of the drive source transformer. When bonding the armor or shield to the drive PE, use a low impedance cable or strap, as opposed to the smaller gauge ground wire supplied as part of the motor cable or supplied separately. Otherwise, the higher frequencies associated with the common mode noise can find this cable impedance higher and look for a lower impedance path. The radiated emissions of the cable are minimal because the armor completely covers the noisy power wires. Also, the armor prevents EMI coupling to other signal cables that are routed in the same cable tray.

Another effective method of reducing common mode noise is to attenuate the noise before it can reach the ground grid. Install a common mode ferrite core on the output cables to reduce the amplitude of the noise to a level that makes it relatively harmless to sensitive equipment or circuits. Common mode cores are most effective when multiple drives are in a relatively small area. For more information, refer to 1321-M Common Mode Chokes Instructions, publication

1321-5.0

Follow these guideline as a general rule for installing common mode chokes:

.

• If the distance between the drive and motor, or the drive and input transformer, is greater than 22.8 m (75 ft), and

• If sensitive circuits with leads greater then 22.8 m (75 ft), such as encoders, analog or capacitive sensors, are routed in or out of the cabinet near the drive or transformer, then

Install common mode chokes.

76 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Electromagnetic Interference Chapter 6

V

C

Load

Power

Wiri ng

Capacitance

Load

Inductance

Wiri ng Inducta nce

AC

A1 A2

L1 T1

Bulletin 156

Contac tor

Load

How Electromechanical Switches Cause Transient Interference

Electromechanical contacts cause transient interference when switching inductive loads such as relays, solenoids, motor starters, or motors. Drives, as well as other devices with electronic logic circuits, are susceptible to this type of interference.

Examine this circuit model for a switch controlling an inductive load. Both the load and the wiring have inductance that prevents the current from stopping instantly when the switch contacts open. There is also stray capacitance in the wiring.

Interference occurs when the switch opens while it is carrying current. Load and cable inductance prevents the current from immediately stopping. The current continues to flow, and charges the capacitance in the circuit. The voltage across the switch contacts (VC) rises, as the capacitance charges. This voltage can reach very high levels. When the voltage exceeds the breakdown voltage for the space between the contacts, an arc occurs and the voltage returns to zero. Charging and arcing continues until the distance between the contacts is sufficient to provide insulation. The arcing radiates noise at an energy levels and frequencies that disturb logic and communication circuits.

If the power source is periodic (like AC power), you can reduce the interference by opening the contact when the current waveform crosses zero. Opening the circuit farther from zero elevates the energy level and creates more interference.

How to Prevent or Mitigate Transient Interference from

The most effective way to avoid this type of transient interference, is to use a device like an Allen-Bradley Bulletin 156 contactor to switch inductive AC loads. These devices feature zero cross switching.

Electromechanical Switches

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 77

Chapter 6 Electromagnetic Interference

AC

Load Load

IMPORTANT

AC

Load

Putting resistor-capacitor (RC) networks or voltage-dependant resistors (varistors) across contacts can mitigate transient interference. Be sure to select components rated to withstand the voltage, power, and frequency of switching for your application.

AC

A common method for mitigating transient interference is to put a diode in parallel with an inductive DC load, or a suppressor in parallel with an inductive AC load. Be sure to select components rated to withstand the voltage, power, and frequency of switching for your application.

These methods are not totally effective at stopping transient interference, because they do not entirely eliminate arcing at the contacts.

+

DC

-

78 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Examples of Transient Interference Mitigation

1CR

V DC

Digital Contact Output

L1 L2

1MS

L1

1MS

1M

L2

1MS

L1

Digital DC Output

Solid-state

Switch

Suppressor

2L1L

1CR

1S

Solid-state

Switch

Suppressor

Digital AC Output

L1 L2

Digital Contact Output

Suppressor

Pilot Light with Built-in Step-down Transformer

1CR

115V AC 480V AC

RC1RC1

Digital Contact Output

Suppressor

Brake Solenoid

Electromagnetic Interference Chapter 6

This table contains examples that illustrate methods for mitigating transient interference.

Example 1

A contact output controls a DC control relay.

The relay coil requi res a suppressor (blocking diode) because it is an inductive device controlled by a dry contac t.

Example 2

A DC output controls a motor starter, contacts on the starter control a motor.

The contacts require RC networks or varistors.

The motor requires supp ressors becau se it is an inductive device.

An inductive device controlled by a solid state switching device (like the starter coil in this example) typically does not require a suppressor.

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 79

Example 3

An AC output controls an interposing relay, but the circuit can be opened by dry contacts. Relay contacts control a solenoid coil.

The contacts require RC networks or varistors.

The relay coil requires a suppressor because it is an inductive device controlled by dry contacts.

The solenoid coil also requires a suppressor because it is an inductive device controlled by dry contacts.

Example 4

A contact output controls a pilot light with a built in step-down transformer.

The pilot light requires a suppressor because its transformer is an inductive device controlled by a dry contac t.

Example 5

A contact output controls a relay that controls a brake solenoid.

The contacts require RC networks or varistors.

Both the relay and the brake solenoid require suppressors because they are both inductive devices controlled by dry contacts.

Chapter 6 Electromagnetic Interference

Shielding Grid

Over Lamp

Shielded

Cable

Metal-encased

Switch

Filter

AC Power

Line Filter or

Shielded Power

Line

Enclosure Lighting

Bearing Current

Fluorescent lamps are also sources of EMI. If you must use fluorescent lamps inside an enclosure, follow these precautions to help guard against EMI problems:

• Install a shielding grid over the lamp

• Use shielded cable between the lamp and its switch

• Use a metal-encased switch

• Install a filter between the switch and the power line, or shield the power

line cable

The application of pulse-width modulated (PWM) inverters has led to significant advantages in terms of the performance, size, and efficiency of variable speed motor controls. However, the high switching rates used to obtain these advantages can also contribute to motor bearing damage due to bearing currents and electric discharge machining (EDM). Bearing damage on motors supplied by PWM inverters is more likely to occur in applications where the coupling between the motor and load is not electrically conductive (such as belted loads), when the motor is lightly loaded, or when the motor is in an environment with ionized air. Other factors, such as the type of grease and the type of bearings used, can also affect the longevity of motor bearings. Motor manufacturers that design and manufacture motors for use with variable frequency drives can offer solutions to help mitigate these potential problems.

80 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Motor Cable Length Restrictions Tables

IMPORTANT

Appendix A

Overview

The distances listed in each table are valid only for specific cable constructions and are not always accurate for lesser cable designs, particularly if the length restriction is due to cable charging current (indicated in the tables by shading). When choosing the proper cable, note these definitions.

Unshielded Cable

• Tray cable – fixed geometry without foil or braided shield but including an exterior cover

• Individual wires not routed in metallic conduit

Shielded Cable

• Individual conduc tors routed in metallic conduit

• Fixed geometry cables with foil or braided shield of at least 75% coverage

• Continuous weld or interlocked armored cables with no twist in the conductors (can have an optional foil shield)

Certain shielded cable constructions can cause excessive cable charging currents and can interfere with proper application performance, particularly on smaller drive ratings. Shielded cables that do not maintain a fixed geometry, but rather twist the conductors and tightly wrap the bundle with a foil shield, can cause unnecessary drive tripping. Unless specifically stated in the table, the distances listed are not applicable to this type of cable. Actual distances for this cable type can be considerably less.

Type A Motor

• No phase paper or misplaced phase paper

• Lower quality insulation systems

• Corona inception voltages between 850…1000V

Type B Motor

• Properly placed phase paper

• Medium quality insulation systems

• Corona inception voltages between 1000…1200V

1488V Motor

• Meets NEMA MG 1-1998 section 31 standard

• Insulation can withstand voltage spikes of 3.1 times rated motor voltage due to inverter operation

1329 R/L Motor

• AC variable speed motors are control-matched for use with Allen-Bradley drives

• Motor designed to meet or exceed the requirements of the Federal Energy Act of 1992

• Optimized for variable speed operation and include premium inverter grade insulation systems that meet or

exceed NEMA MG1 (Part 31.40.4.2)

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 81

Appendix A Motor Cable Length Restrictions Tables

In the tables in this section, a ‘●’ in the available options columns indicates that the drive rating can be used with an Allen-Bradley terminator (catalog numbers 1204-TFA1/1204-TFB2) and/or reflected wave reduction device with common mode choke (catalog number 1204-RWC-17) or without choke (catalog number 1204-RWR2).

Follow these guidelines for terminators and reflected wave reduction devices:

• For the terminator, the maximum cable length is 182.9 m (600 ft) for 400/480/600V drives (not 690V). The PWM frequency must be 2 kHz. Catalog number 1204-TFA1 can be used only on low Hp (5 Hp and below), while catalog number 1204-TFB2 can be used from 2…800 Hp.

• 1204 reflected wave reduction device (all motor insulation classes): – Catalog number 1204-RWR2-09

2 kHz: 182.9 m (600 ft) at 400/480V and 121.9 m (400 ft) at 600V. 4 kHz: 91.4 m (300 ft) at 400/480V and 61.0 m (200 ft) at 600V.

– Catalog number 1204-RWC-17

2 kHz: 365.8 m (1200 ft) at 400/480/600V. 4 kHz: 243.8 m (800 ft) at 400/480V and 121.9 m (400 ft) at 600V.

For both devices, power dissipation in the damping resistor limits maximum cable length.

Catalog number 1321-RWR is a complete reflected wave reduction solution available for many of the PowerFlex drives. If available, a 1321-RWR catalog number is indicated in the Reactor/RWR column. When not available, use the reactor and resistor information provided in the tables in this section to build a solution.

For this Cat. No. Refer to this Publication

1321-RWR, 1321-3Rxx 1321 Power Conditioning Products Technical Data, publication 1321-TD001

1204-RWR2 1204 Reflected Wave Reduction Device Instructions, publication 1204-5.1

1204-RWC 1204 Reflected Wave Reduction Device with Common Mode Choke Instructions,

publication 1204-IN001

1204-TFxx 1204 Terminator Instructions, publication 1204-IN002

82 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Motor Cable Length Restrictions Tables Appendix A

Motor Cable Length Restrictions Tables Cross Reference

Use this table to find the drive and voltage rating that you are looking for.

Drive Voltage Table Page Drive Voltage Table Page

PowerFlex 4 400 14 84

480 15 84 480 43 105

PowerFlex 4M 400 16 85 600 44 107

480 17 85 690 45 108

PowerFlex 40 400 18 86 PowerFlex 753 and 755 (wall mount) 400 46 109

480 19 86 480 47 111

600 20 87 600 48 114

PowerFlex 400 400 21 88 690 49 117

480 22 89 PowerFlex 755 (floor mount) 400 50 118

PowerFlex 525 400 23 90 480 51 120

480 24 91 600 52 121

600 25 92 690 53 123

PowerFlex 70 (standard/enhanced) PowerFlex 700 (standard/vector)

PowerFlex 700 (standard/vector) 690 29 98 1305 (external devices at motor) 480 57 127

PowerFlex 700H 400 30 98 160 480 58 127

PowerFlex 700L with PowerFlex 700VC Control

PowerFlex 700L with PowerFlex 700S Control

400 26 93 1336 PLUS II

480 27 95 600 55 126

600 28 97 1305 (no external devices) 480 56 127

480 31 99 160 (cable charging current) 240 and 480 59 128

600 32 100

690 33 100

400 34 101

480 35 101

600 36 101

690 37 102

400 38 102

480 39 102

600 40 103

690 41 103

PowerFlex 700S 400 42 104

380…480 54 124

1336 IMPACT

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 83

Appendix A Motor Cable Length Restrictions Tables

PowerFlex 4 Drives

This section lists motor cable length restrictions, reactors, and available options for PowerFlex 4 Drives.

Table 14 - PowerFlex 4 Drives, 400V Shielded/Unshielded Cable – Meters (Feet)

Rating No Solution Reactor Only Reactor and Damping Resistor

kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

53.3

91.4

121.9

0.4 2/4

0.75 2/4

1.5 2/4

2.2 2/4

3.7 2/4

(25)

7.6 (25)

(175)

83.8 (275)

137.2 (450)

(175)

83.8 (275)

182.9 (600)

243.8 (800)

(175)

83.8 (275)

182.9 (600)

243.8 (800)

(300)

91.4 (300)

(400)

152.4 (500)

182.9 (600)

243.8 (800)

121.9

(400)

152.4

(500)

152.4

(500)

182.9

(600)

243.8

(800)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

or 1321-RWR

121.9

(400)

152.4

(500)

152.4

(500)

182.9

(600)

243.8

(800)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

Table 15 - PowerFlex 4 Drives, 480V Shielded/Unshielded Cable – Meters (Feet)

Rating No Solution Reactor Only Reactor and Damping Resistor

Hp kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

12.2

53.3

7.6

91.4

0.5 2/4

12/4

22/4

32/4

52/4

(25)

7.6 (25)

(40)

12.2 (40)

(175)

83.8 (275)

129.5 (425)

137.2 (450)

(175)

83.8 (275)

129.5 (425)

182.9 (600)

(25)

7.6 (25)

(300)

91.4 (300)

121.9

(400)

152.4

(500)

182.9

(600)

182.9

(600)

243.8

(800)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

or 1321-RWR

121.9

(400)

152.4

(500)

182.9

(600)

182.9

(600)

182.9

243.8

(600)

(800)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

Resistor Available Options

)

Resistor Available Options

)

TFA1

TFB2

RWR2

●●●

●●●●

TFA1

TFB2

●●●

●●●●

RWC

RWR2

RWC

84 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Motor Cable Length Restrictions Tables Appendix A

PowerFlex 4M Drives

This section lists motor cable length restrictions, reactors, and available options for PowerFlex 4M Drives.

Table 16 - PowerFlex 4M Drives, 400V Shielded/Unshielded Cable – Meters (Feet)

Rating No Solution Reactor Only Reactor and Damping Resistor

kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

53.3

91.4

121.9

0.4 2/4

0.75 2/4

1.5 2/4

2.2 2/4

3.7 2/4

5.5 2/4

7.5 2/4

11 2/4

(25)

7.6 (25)

(175)

83.8 (275)

137.2 (450)

(175)

83.8 (275)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

(175)

83.8 (275)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

(300)

91.4 (300)

(400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

or 1321-RWR

121.9

(400)

152.4

(500)

152.4

(500)

182.9

(600)

243.8

(800)

304.8

(1000)

365.8

(1200)

365.8

(1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

Resistor Available Options

)

TFA1

TFB2

RWR2

●●●

●●●●

●●

●

RWC

Table 17 - PowerFlex 4M Drives, 480V Shielded/Unshielded Cable – Meters (Feet)

Rating No Solution Reactor Only Reactor and Damping Resistor

Hp kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

12.2

53.3

7.6

91.4

0.5 2/4

12/4

22/4

32/4

52/4

7.5 2/4

10 2/4

15 2/4

(25)

7.6 (25)

(40)

12.2 (40)

(175)

83.8 (275)

129.5 (425)

137.2 (450)

(175)

83.8 (275)

129.5 (425)

182.9 (600)

(25)

7.6 (25)

(300)

91.4 (300)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

or 1321-RWR

121.9

(400)

152.4

(500)

182.9

(600)

182.9

(600)

182.9

243.8

(600)

(800)

182.9

304.8

(600)

(1000)

182.9

365.8

(600)

(1200)

182.9

365.8

(600)

(1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

Resistor Available Options

)

TFA1

TFB2

RWR2

●●●

●●●●

●●

●

RWC

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 85

Appendix A Motor Cable Length Restrictions Tables

PowerFlex 40 Drives

This section lists motor cable length restrictions, reactors, and available options for PowerFlex 40 Drives.

Table 18 - PowerFlex 40 Drives, 400V Shielded/Unshielded Cable – Meters (Feet)

Rating No Solution Reactor Only Reactor and Damping Resistor

kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

53.3

91.4

121.9

0.4 2/4

0.75 2/4

1.5 2/4

2.2 2/4

42/4

5.5 2/4

7.5 2/4

11 2/4

(25)

7.6 (25)

(175)

83.8 (275)

137.2 (450)

(175)

83.8 (275)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

(175)

83.8 (275)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

(300)

91.4 (300)

(400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9

(400)

152.4

(500)

152.4

(500)

182.9

(600)

243.8

(800)

304.8

(1000)

365.8

(1200)

365.8

(1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

or 1321-RWR

121.9

(400)

152.4

(500)

152.4

(500)

182.9

(600)

243.8

(800)

304.8

(1000)

365.8

(1200)

365.8

(1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

Table 19 - PowerFlex 40 Drives, 480V Shielded/Unshielded Cable – Meters (Feet)

Rating No Solution Reactor Only Reactor and Damping Resistor

Hp kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

12.2

53.3

7.6

91.4

0.5 2/4

12/4

22/4

32/4

52/4

7.5 2/4

10 2/4

15 2/4

(25)

7.6 (25)

(40)

12.2 (40)

(175)

83.8 (275)

129.5 (425)

137.2 (450)

(175)

83.8 (275)

129.5 (425)

182.9 (600)

(25)

7.6 (25)

(300)

91.4 (300)

121.9

(400)

152.4

(500)

182.9

(600)

182.9

(600)

243.8

(800)

304.8

(1000)

365.8

(1200)

365.8

(1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

or 1321-RWR

121.9

(400)

152.4

(500)

182.9

(600)

182.9

(600)

243.8

(800)

182.9

304.8

(600)

(1000)

182.9

365.8

(600)

(1200)

182.9

365.8

(600)

(1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

Resistor Available Options

)

Resistor Available Options

)

TFA1

TFB2

RWR2

●●●

●●●●

●● ●

●●

●

TFA1

TFB2

●●●

●●●●

●● ●

●●

●

RWC

RWR2

RWC

86 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Table 20 - PowerFlex 40 Drives, 600V Shielded/Unshielded Cable – Meters (Feet)

Rating No Solution Reactor Only Reactor and

Hp kHz 1488V 1850V 1488V 1600V 1488V 1600V Cat. No. Ohms Watts

42.7

121.9

12/4

22/4

32/4

52/4

7.5 2/4

10 2/4

15 2/4

(140)

42.7 (140)

(400)

152.4 (500)

182.9 (600)

121.9 (400)

152.4 (500)

121.9 (400)

152.4 (500)

243.8 (800)

304.8 (1000)

365.8 (1200)

Damping Resistor or 1321-RWR

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

Resistor Available Options

)

Motor Cable Length Restrictions Tables Appendix A

TFA1

TFB2

RWR2

●●●

●●●●

●●

●

RWC

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 87

Appendix A Motor Cable Length Restrictions Tables

PowerFlex 400 Drives

This section lists motor cable length restrictions, reactors, and available options for PowerFlex 400 Drives.

Table 21 - PowerFlex 400 Drives, 400V Shielded/Unshielded Cable – Meters (Feet)

Rating No Solution Reactor Only Reactor and Damping Resistor

kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

106.7

182.9

91.4

182.9

2.2 2, 4

42, 4

5.5 2, 4

7.5 2, 4

11 2, 4

15 2, 4

18.5 2, 4

22 2, 4

30 2, 4

37 2, 4

45 2, 4

55 2, 4

75 2, 4

90 2, 4

110 2, 4

132 2, 4

160 2, 4

200 2, 4

250 2, 4

(25)

7.6 (25)

12.2 (40)

18.3 (60)

24.4 (80)

(350)

106.7 (350)

91.4 (300)

(600)

243.8 (800)

274.3 (900)

213.4 (700)

182.9 (600)

167.6 (550)

(600)

243.8 (800)

304.8 (1000)

365.8 (1200)

304.8 (1000)

274.3 (900)

(300)

91.4 (300)

76.2 (250)

61.0 (200)

45.7 (150)

(600)

243.8 (800)

274.3 (900)

243.8 (800)

213.4 (700)

182.9 (600)

152.4 (500)

121.9 (400)

182.9

(600)

243.8

(800)

304.8

(1000)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

304.8

(1000)

304.8

(1000)

304.8

(1000)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

or 1321-RWR

182.9

(600)

243.8

(800)

304.8

(1000)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

365.8

(1200)

304.8

365.8

(1000)

(1200)

304.8

365.8

(1000)

(1200)

274.3

365.8

(900)

(1200)

243.8

365.8

(800)

(1200)

243.8

365.8

(800)

(1200)

243.8

365.8

(800)

(1200)

243.8

365.8

(800)

(1200)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

Reactor/RWR (see page 129

182.9 1321-RWR8-DP

(600)

243.8 1321-RWR12-DP

(800)

304.8 1321-RWR12-DP

(1000)

365.8 1321-RWR18-DP

(1200)

365.8 1321-RWR25-DP

(1200)

365.8 1321-RWR35-DP

(1200)

365.8 1321-RWR45-DP

(1200)

365.8 1321-RWR45-DP

(1200)

365.8 1321-RWR55-DP

(1200)

365.8 1321-RWR80-DP

(1200)

365.8 1321-RWR100-DP

(1200)

365.8 1321-RWR100-DP

(1200)

365.8 1321-RWR160-DP

(1200)

365.8 1321-RWR200-DP

(1200)

365.8 1321-RWR200-DP

(1200)

365.8 1321-RWR250-DP

(1200)

365.8 1321-RWR320-DP

(1200)

365.8 1321-3RB400-B 20 495

(1200)

365.8 1321-3R500-B 20 495

(1200)

Resistor Available Options

)

TFA1

TFB2

RWR2

●●●●

●● ●

●●

●

RWC

88 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Table 22 - PowerFlex 400 Drives, 480V Shielded/Unshielded Cable – Meters (Feet)

Motor Cable Length Restrictions Tables Appendix A

Rating No Solution Reactor Only Reactor and Damping Resistor

or 1321-RWR

Reactor/RWR (see page 129

Resistor Available Options

)

Hp kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

12.2

121.9

12.2

91.4

182.9

152.4

182.9

32, 4

52, 4

7.5 2, 4

10 2, 4

15 2, 4

20 2, 4

25 2, 4

30 2, 4

40 2, 4

50 2, 4

60 2, 4

75 2, 4

100 2, 4

125 2, 4

150 2, 4

200 2, 4

250 2, 4

300 2, 4

350 2, 4

(25)

7.6 (25)

12.2 (40)

(40)

12.2 (40)

18.3 (60)

24.4 (80)

30.5 (100)

(400)

137.2 (450)

121.9 (400)

106.7 (350)

(400)

182.9 (600)

167.6 (550)

152.4 (500)

137.2 (450)

(40)

12.2 (40)

(300)

91.4 (300)

76.2 (250)

61.0 (200)

45.7 (150)

30.5 (100)

(600)

243.8 (800)

304.8 (1000)

365.8 (1200)

304.8 (1000)

243.8 (800)

213.4 (700)

152.4 (500)

121.9 (400)

(600)

243.8 (800)

304.8 (1000)

365.8 (1200)

304.8 (1000)

243.8 (800)

213.4 (700)

152.4 (500)

(500)

152.4 (500)

121.9 (400)

91.4 (300)

76.2 (250)

61.0 (200)

(600)

243.8 (800)

304.8 (1000)

365.8 (1200)

304.8 (1000)

274.3 (900)

243.8 (800)

(600)

243.8 (800)

304.8 (1000)

365.8 (1200)

304.8 (1000)

182.9 1321-RWR8-DP

(600)

243.8 1321-RWR12-DP

(800)

304.8 1321-RWR12-DP

(1000)

365.8 1321-RWR18-DP

(1200)

365.8 1321-RWR25-DP

(1200)

365.8 1321-RWR35-DP

(1200)

365.8 1321-RWR45-DP

(1200)

365.8 1321-RWR45-DP

(1200)

365.8 1321-RWR55-DP

(1200)

365.8 1321-RWR80-DP

(1200)

365.8 1321-RWR100-DP

(1200)

365.8 1321-RWR100-DP

(1200)

365.8 1321-RWR160-DP

(1200)

365.8 1321-RWR200-DP

(1200)

365.8 1321-RWR200-DP

(1200)

365.8 1321-RWR250-DP

(1200)

365.8 1321-RWR320-DP

(1200)

365.8 1321-3RB400-B 20 495

(1200)

365.8 1321-3R500-B 20 495

(1200)

TFA1

TFB2

RWR2

●●●●

●● ●

●●

●

RWC

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 89

Appendix A Motor Cable Length Restrictions Tables

PowerFlex 525 Drives

This section lists motor cable length restrictions, reactors, and available options for PowerFlex 525 Drives.

Table 23 - PowerFlex 525 Drives, 400V Shielded/Unshielded Cable – Meters (Feet)

Drive No Solution Reactor Only Reactor and Damping Resistor

Frame kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

35.1

61.0

121.9

0.4 2/4

0.75 2/4

A

1.5 2/4

2.2 2/4

B42/4

2

5.5 4

C

2

7.5 4

2

11

4

D

2

15

4

2

18.5 4

E

2

22

4

(25)

7.6 (25)

(115)

35.1 (115)

83.8 (275)

91.4 (300)

(115)

35.1 (115)

83.8 (275)

182.9 (600)

243.8 (800)

182.9 (600)

243.8 (800)

182.9 (600)

243.8 (800)

182.9 (600)

243.8 (800)

182.9 (600)

(115)

35.1 (115)

83.8 (275)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

(200)

61.0 (200)

(400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

121.9 (400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

121.9 (400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

or 1321-RWR

121.9

(400)

152.4

(500)

152.4

(500)

182.9

(600)

182.9

(600)

304.8

(1000)

182.9

(600)

304.8

(1000)

182.9

(600)

365.8

(1200)

182.9

(600)

365.8

(1200)

182.9

(600)

365.8

(1200)

182.9

(600)

365.8

(1200)

182.9

(600)

121.9 (400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

121.9 (400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

1321-RWR35-DP

1321-RWR45-DP

Resistor Available Options

)

TFA1

TFB2

RWR2

●●

●●●

●● ●

●●

●

RWC

●

90 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Table 24 - PowerFlex 525 Drives, 480V Shielded/Unshielded Cable – Meters (Feet)

Motor Cable Length Restrictions Tables Appendix A

Drive No S olution Reactor Only Reactor and Damping Resistor

or 1321-RWR

Reactor/RWR (see page 129

Resistor Available Options

)

Frame kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

7.6

12.2

35.1

7.6

61.0

121.9

0.5 2/4

12/4

A

22/4

32/4

B52/4

2

7.5 4

C

2

10

4

2

15

4

D

2

20

4

2

25

4

E

2

30

4

(25)

7.6 (25)

(40)

12.2 (40)

(115)

35.1 (115)

83.8 (275)

91.4 (300)

(115)

35.1 (115)

83.8 (275)

137.2 (450)

(25)

7.6 (25)

(200)

61.0 (200)

91.4 (300)

(400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

(400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

(400)

152.4 (500)

182.9 (600)

(400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

(400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

121.9 (400)

152.4 (500)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

1321-RWR35-DP

1321-RWR45-DP

TFA1

TFB2

RWR2

●●

●●●

●● ●

●●

●

RWC

●

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 91

Appendix A Motor Cable Length Restrictions Tables

Table 25 - PowerFlex 525 Drives, 600V Shielded/Unshielded Cable – Meters (Feet)

Drive No Solution Reactor Only Reac tor and

Damping Resistor

Reactor/RWR (see page 129

Resistor Available Options

)

or 1321-RWR

Frame HP kHz 1488V 1850V 1488V 1850V 1488V 1850V Cat. No. Ohms Watts

12.2

35.1

76.2

121.9

0.5 2/4

12/4

A

22/4

32/4

B5 2/4

2

7.5 4

C

2

10

4

2

15

4

D

2

20

4

2

25

4

E

2

30

4

(40)

12.2 (40)

22.9 (75)

30.5 (100)

(115)

35.1 (115)

83.8 (275)

152.4 (500)

(250)

76.2 (250)

(400)

121.9 (400)

152.4 (500)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

(400)

121.9 (400)

152.4 (500)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

121.9 (400)

152.4 (500)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

1321-RWR8-EP

1321-RWR12-EP

1321-RWR25-EP

1321-RWR35-EP

TFA1

TFB2

RWR2

●●

●●●

●● ●

●●

●

RWC

●

92 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Motor Cable Length Restrictions Tables Appendix A

PowerFlex 70 and 700 Drives

This section lists motor cable length restrictions, reactors, and available options for PowerFlex 70 and 700 Drives.

Table 26 - PowerFlex 70 (standard/enhanced) and 700 (standard/vector) Drives, 400V Shielded/Unshielded Cable – Meters (Feet)

Drive

Rating No Solution Reactor O nly Reac tor and Damping Resistor

Frame

kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

70

700

0.37

A

0.75

1.5

0

2.2

B

4

5.5

C

7.5

1

11

D

15

2

D18.5

D322

30

E

37

4 45

continued

7.6

53.3

91.4

121.9

2

(25)

(175)

(300)

7.6

53.3

4

(25)

(175)

7.6

83.8

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

7.6

2

(25)

7.6

4

(25)

12.2

2

(40)

12.2

4

(40)

12.2

2

(40)

12.2

4

(40)

(275)

76.2 (250)

83.8 (275)

76.2 (250)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

83.8 (275)

76.2 (250)

83.8 (275)

76.2 (250)

182.9 (600)

152.4 (500)

243.8 (800)

152.4 (500)

304.8 (1000)

152.4 (500)

365.8 (1200)

152.4 (500)

365.8 (1200)

152.4 (500)

365.8 (1200)

152.4 (500)

365.8 (1200)

152.4 (500)

365.8 (1200)

152.4 (500)

304.8 (1000)

152.4 (500)

304.8 (1000)

152.4 (500)

304.8 (1000)

152.4 (500)

(175)

83.8 (275)

76.2 (250)

83.8 (275)

76.2 (250)

182.9 (600)

243.8 (800)

213.4 (700)

304.8 (1000)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

18.3 (60)

91.4 (300)

24.4 (80)

(400)

91.4 (300)

152.4 (500)

91.4 (300)

182.9 (600)

91.4 (300)

182.9 (600)

91.4 (300)

243.8 (800)

91.4 (300)

304.8 (1000)

91.4 (300)

365.8 (1200)

91.4 (300)

365.8 (1200)

91.4 (300)

365.8 (1200)

91.4 (300)

365.8 (1200)

91.4 (300)

365.8 (1200)

91.4 (300)

365.8 (1200)

91.4 (300)

365.8 (1200)

91.4 (300)

304.8 (1000)

91.4 (300)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

or 1321-RWR

121.9

(400)

121.9

(400)

152.4

(500)

152.4

(500)

182.9

(600)

182.9

(600)

182.9

(600)

182.9

(600)

243.8

(800)

182.9

243.8

(600)

(800)

304.8

(1000)

182.9

304.8

(600)

(1000)

365.8

(1200)

182.9

304.8

(600)

(1000)

365.8

(1200)

182.9

304.8

(600)

(1000)

365.8

(1200)

182.9

304.8

(600)

(1000)

365.8

(1200)

182.9

304.8

(600)

(1000)

365.8

(1200)

182.9

304.8

(600)

(1000)

365.8

(1200)

182.9

304.8

(600)

(1000)

365.8

(1200)

182.9

304.8

(600)

(1000)

365.8

(1200)

152.4

304.8

(500)

(1000)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

Reactor/RWR (see page 129

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

1321-RWR35-DP

1321-RWR45-DP

1321-RWR55-DP

1321-RWR80-DP

Resistor Available Options

)

TFA1

●●●

●●●●

TFB2

RWR2

RWC

●●

●

●●

●

●●

●

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 93

Appendix A Motor Cable Length Restrictions Tables

Table 26 - PowerFlex 70 (standard/enhanced) and 700 (standard/vector) Drives, 400V Shielded/Unshielded Cable – Meters (Feet) (continued)

Drive

Rating No Solution Reactor O nly Reac tor and Damping Resistor

Frame

or 1321-RWR

Reactor/RWR (see page 129

kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

70

700

55

5

75

90

6

110

132

160

7

180

200

240

280

8

300

350

9400

10 500

12.2

137.2

304.8

365.8

91.4

274.3

365.8

2

(40)

(450)

(1000)

(1200)

(300)

(900)

(1200)

12.2

91.4

152.4

213.4

24.4

91.4

365.8

152.4

4

(40)

(300)

(500)

(700)

(80)

(300)

(1200)

18.3

137.2

304.8

365.8

91.4

213.4

365.8

2

(60)

(450)

(1000)

(1200)

(300)

(700)

18.3

91.4

152.4

213.4

30.5

4

(60)

(300)

(500)

(700)

18.3

137.2

304.8

2

(60)

(450)

18.3 (60)

24.4 (80)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

121.9 (400)

91.4 (300)

121.9 (400)

91.4 (300)

121.9 (400)

91.4 (300)

121.9 (400)

91.4 (300)

121.9 (400)

91.4 (300)

121.9 (400)

91.4 (300)

121.9 (400)

91.4 (300)

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

(1000)

152.4 (500)

274.3 (900)

152.4 (500)

274.3 (900)

152.4 (500)

243.8 (800)

152.4 (500)

243.8 (800)

152.4 (500)

243.8 (800)

152.4 (500)

243.8 (800)

152.4 (500)

213.4 (700)

152.4 (500)

213.4 (700)

152.4 (500)

213.4 (700)

152.4 (500)

137.2 (450)

152.4 (500)

137.2 (450)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

304.8 (1000)

182.9 (600)

259.1 (850)

182.9 (600)

259.1 (850)

182.9 (600)

213.4 (700)

167.6 (550)

213.4 (700)

167.6 (550)

(100)

91.4 (300)

30.5 (100)

76.2 (250)

36.6 (120)

61.0 (200)

36.6 (120)

61.0 (200)

36.6 (120)

61.0 (200)

36.6 (120)

61.0 (200)

36.6 (120)

61.0 (200)

36.6 (120)

45.7 (150)

36.6 (120)

45.7 (150)

36.6 (120)

45.7 (150)

36.6 (120)

91.4 (300)

213.4 (700)

91.4 (300)

198.1 (650)

91.4 (300)

182.9 (600)

91.4 (300)

152.4 (500)

91.4 (300)

152.4 (500)

91.4 (300)

152.4 (500)

91.4 (300)

152.4 (500)

91.4 (300)

121.9 (400)

91.4 (300)

121.9 (400)

91.4 (300)

121.9 (400)

91.4 (300)

(1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

182.9 (600)

304.8 (1000)

167.6 (550)

304.8 (1000)

167.6 (550)

304.8 (1000)

167.6 (550)

304.8 (1000)

167.6 (550)

304.8 (1000)

152.4 (500)

304.8 (1000)

152.4 (500)

365.8 (1200)

274.3 (900)

365.8 (1200)

274.3 (900)

365.8 (1200)

228.6 (750)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

(500)

365.8 (1200)

152.4 (500)

304.8 (1000)

121.9 (400)

274.3 (900)

121.9 (400)

243.8 (800)

91.4 (300)

243.8 (800)

91.4 (300)

243.8 (800)

91.4 (300)

243.8 (800)

91.4 (300)

243.8 (800)

91.4 (300)

228.6 (750)

91.4 (300)

228.6 (750)

91.4 (300)

228.6 (750)

91.4 (300)

198.1 (650)

76.2 (250)

198.1 (650)

76.2 (250)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

243.8 (800)

365.8 (1200)

213.4 (700)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

365.8 (1200)

182.9 (600)

304.8 (1000)

182.9 (600)

274.3 (900)

137.2 (450)

274.3 (900)

137.2 (450)

(1200)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

274.3 (900)

365.8 (1200)

274.3 (900)

365.8 1321-RWR100-DP

(1200)

365.8 1321-RWR100-DP

(1200)

365.8 1321-RWR130-DP

(1200)

365.8 1321-RWR130-DP

(1200)

365.8 1321-RWR160-DP

(1200)

365.8 1321-RWR160-DP

(1200)

365.8 1321-RWR200-DP

(1200)

365.8 1321-RWR200-DP

(1200)

365.8 1321-RWR250-DP

(1200)

365.8 1321-RWR250-DP

(1200)

365.8 1321-3RB320-B 50 225

(1200)

365.8 1321-3RB320-B 50 450

(1200)

365.8 1321-3RB320-B 50 225

(1200)

365.8 1321-3RB320-B 50 450

(1200)

365.8 1321-3RB400-B

(1200)

365.8 1321-3RB400-B

(1200)

365.8 1321-3R400-B

(1200)

365.8 1321-3RB400-B

(1200)

365.8 1321-3R500-B

(1200)

365.8 1321-3R500-B

(1200)

365.8 1321-3R600-B

(1200)

365.8 1321-3R600-B

(1200)

365.8 1321-3R600-B

(1200)

365.8 1321-3R600-B

(1200)

365.8 1321-3R750-B

(1200)

365.8 1321-3R750-B

(1200)

365.8 1321-3R850-B

(1200)

365.8 1321-3R850-B

(1200)

(1) Requires two parallel cables. (2) Requires three parallel cables.

Resistor Available Options

)

(1)

20 495

(1)

20 990

(1)

20 495

(1)

20 990

(1)

20 495

(1)

20 990

(1)

20 495

(1)

20 990

(1)

20 495

(1)

20 990

(2)

20 735

(2)

20 1470

(2)

20 735

(2)

20 1470

TFA1

TFB2

RWR2

●

RWC

94 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Motor Cable Length Restrictions Tables Appendix A

Table 27 - PowerFlex 70 (standard/enhanced) and 700 (standard/vector) Drives, 480V Shielded/Unshielded Cable – Meters (Feet)

Drive

Rating No Solutio n Reac tor Only Reactor and Damping Resistor

Frame

or 1321-RWR

Reactor/RWR (see page 129

Hp kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

70

700

0.5

A

1

2

0

3

B

5

7.5

C

10

1

15

20

D

2

25

30

40

3

E

50

4 60

7.6

12.2

53.3

7.6

91.4

121.9

2

(25)

(40)

(175)

(25)

(300)

(400)

7.6

12.2

53.3

7.6

12.2

121.9

4

(25)

(40)

(175)

(25)

(40)

(400)

7.6

12.2

83.8

7.6

91.4

152.4

2

(25)

(40)

(275)

(25)

(300)

7.6

12.2

76.2

7.6

4

(25)

(40)

(250)

7.6

12.2

83.8

2

(25)

(40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

18.3 (60)

12.2 (40)

18.3 (60)

12.2 (40)

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

(275)

76.2 (250)

129.5 (425)

121.9 (400)

137.2 (450)

121.9 (400)

137.2 (450)

121.9 (400)

137.2 (450)

121.9 (400)

137.2 (450)

121.9 (400)

137.2 (450)

121.9 (400)

137.2 (450)

121.9 (400)

137.2 (450)

121.9 (400)

137.2 (450)

106.7 (350)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

83.8 (275)

76.2 (250)

129.5 (425)

121.9 (400)

182.9 (600)

152.4 (500)

182.9 (600)

152.4 (500)

182.9 (600)

152.4 (500)

(25)

7.6 (25)

12.2 (40)

91.4 (300)

12.2 (40)

91.4 (300)

12.2 (40)

91.4 (300)

12.2 (40)

91.4 (300)

12.2 (40)

91.4 (300)

12.2 (40)

91.4 (300)

12.2 (40)

91.4 (300)

12.2 (40)

76.2 (250)

12.2 (40)

76.2 (250)

12.2 (40)

76.2 (250)

12.2 (40)

61.0 (200)

18.3 (60)

61.0 (200)

24.4 (80)

(500)

121.9 (400)

182.9 (600)

121.9 (400)

182.9 (600)

121.9 (400)

243.8 (800)

121.9 (400)

304.8 (1000)

121.9 (400)

365.8 (1200)

121.9 (400)

365.8 (1200)

121.9 (400)

365.8 (1200)

121.9 (400)

365.8 (1200)

121.9 (400)

365.8 (1200)

121.9 (400)

365.8 (1200)

106.7 (350)

304.8 (1000)

106.7 (350)

304.8 (1000)

91.4 (300)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

274.3 (900)

365.8 (1200)

243.8 (800)

365.8 (1200)

228.6 (750)

365.8 (1200)

228.6 (750)

365.8 (1200)

228.6 (750)

(400)

152.4 (500)

182.9 (600)

152.4 (500)

182.9 (600)

152.4 (500)

121.9 (400)

152.4 (500)

91.4 (300)

137.2 (450)

76.2 (250)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

304.8 (1000)

365.8 (1200)

243.8 (800)

365.8 (1200)

243.8 (800)

365.8 (1200)

213.4 (700)

(400)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

121.9 (400)

152.4 (500)

182.9 (600)

243.8 (800)

304.8 (1000)

365.8 (1200)

1321-RWR8-DP

1321-RWR12-DP

1321-RWR18-DP

1321-RWR25-DP

1321-RWR35-DP

1321-RWR45-DP

1321-RWR55-DP

1321-RWR80-DP

continued

Resistor Available Options

)

TFA1

●●●

●●●●

TFB2

RWR2

RWC

●●

●

●●

●

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 95

Appendix A Motor Cable Length Restrictions Tables

Table 27 - PowerFlex 70 (standard/enhanced) and 700 (standard/vector) Drives, 480V Shielded/Unshielded Cable – Meters (Feet) (continued)

Drive

Rating No Solutio n Reac tor Only Reactor and Damping Resistor

Frame

or 1321-RWR

Reactor/RWR (see page 129

Hp kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

70

700

75

5

100

125

6

150

200

250

7

250

300

350

400

8

450

500

600 2

9

10 700

12.2

18.3

137.2

182.9

12.2

61.0

274.3

365.8

137.2

365.8

2

(40)

(60)

(450)

(600)

(40)

(200)

(900)

(1200)

(450)

(1200)

7.6

12.2

91.4

152.4

12.2

24.4

91.4

182.9

76.2

4

(25)

(40)

(300)

(500)

(40)

(80)

(300)

(600)

12.2

24.4

137.2

182.9

12.2

61.0

243.8

2

(40)

(80)

(450)

(600)

(40)

(200)

7.6

18.3

91.4

152.4

12.2

4

(25)

(60)

(300)

(500)

12.2

24.4

137.2

2

(40)

(80)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

12.2 (40)

7.6 (25)

18.3 (60)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

30.5 (100)

24.4 (80)

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

2

4

(450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

106.7 (350)

91.4 (300)

106.7 (350)

91.4 (300)

106.7 (350)

91.4 (300)

106.7 (350)

91.4 (300)

106.7 (350)

91.4 (300)

182.9 (600)

152.4 (500)

182.9 (600)

152.4 (500)

182.9 (600)

121.9 (400)

167.6 (550)

121.9 (400)

167.6 (550)

121.9 (400)

152.4 (500)

121.9 (400)

152.4 (500)

121.9 (400)

152.4 (500)

121.9 (400)

152.4 (500)

121.9 (400)

152.4 (500)

121.9 (400)

(40)

12.2 (40)

30.5 (100)

61.0 (200)

30.5 (100)

61.0 (200)

30.5 (100)

61.0 (200)

36.6 (120)

61.0 (200)

30.5 (100)

61.0 (200)

30.5 (100)

45.7 (150)

30.5 (100)

45.7 (150)

30.5 (100)

45.7 (150)

30.5 (100)

45.7 (150)

30.5 (100)

45.7 (150)

30.5 (100)

45.7 (150)

30.5 (100)

45.7 (150)

30.5 (100)

(800)

91.4 (300)

243.8 (800)

91.4 (300)

243.8 (800)

91.4 (300)

243.8 (800)

91.4 (300)

198.1 (650)

91.4 (300)

198.1 (650)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

137.2 (450)

91.4 (300)

121.9 (400)

91.4 (300)

106.7 (350)

91.4 (300)

106.7 (350)

91.4 (300)

365.8 (1200)

152.4 (500)

365.8 (1200)

152.4 (500)

304.8 (1000)

152.4 (500)

304.8 (1000)

121.9 (400)

259.1 (850)

121.9 (400)

259.1 (850)

121.9 (400)

198.1 (650)

121.9 (400)

198.1 (650)

121.9 (400)

182.9 (600)

121.9 (400)

182.9 (600)

121.9 (400)

152.4 (500)

121.9 (400)

137.2 (450)

121.9 (400)

137.2 (450)

121.9 (400)

(250)

137.2 (450)

61.0 (200)

121.9 (400)

61.0 (200)

91.4 (300)

45.7 (150)

76.2 (250)

45.7 (150)

76.2 (250)

45.7 (150)

76.2 (250)

45.7 (150)

61.0 (200)

45.7 (150)

61.0 (200)

45.7 (150)

61.0 (200)

45.7 (150)

61.0 (200)

45.7 (150)

61.0 (200)

45.7 (150)

61.0 (200)

45.7 (150)

61.0 (200)

30.5 (100)

182.9 (600)

365.8 (1200)

137.2 (450)

304.8 (1000)

106.7 (350)

274.3 (900)

76.2 (250)

274.3 (900)

76.2 (250)

243.8 (800)

76.2 (250)

243.8 (800)

76.2 (250)

243.8 (800)

76.2 (250)

243.8 (800)

76.2 (250)

213.4 (700)

76.2 (250)

213.4 (700)

76.2 (250)

182.9 (600)

76.2 (250)

152.4 (500)

61.0 (200)

152.4 (500)

61.0 (200)

(1200)

365.8 (1200)

304.8 (1000)

365.8 (1200)

243.8 (800)

365.8 (1200)

243.8 (800)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

213.4 (700)

365.8 (1200)

167.6 (550)

365.8 (1200)

167.6 (550)

365.8 (1200)

167.6 (550)

304.8 (1000)

167.6 (550)

274.3 (900)

152.4 (500)

274.3 (900)

152.4 (500)

365.8

1321-RWR100-DP

(1200)

365.8

1321-RWR100-DP

(1200)

365.8

1321-RWR130-DP

(1200)

304.8

1321-RWR130-DP

(1000)

365.8

1321-RWR160-DP

(1200)

274.3

1321-RWR160-DP

(900)

365.8

1321-RWR200-DP

(1200)

274.3

1321-RWR200-DP

(900)

365.8

1321-RWR250-DP

(1200)

274.3

1321-RWR250-DP

(900)

365.8

1321-3RB320-B 50 225

(1200)

274.3

1321-3RB320-B 50 450

(900)

365.8

1321-3RB320-B 50 225

(1200)

274.3

1321-3RB320-B 50 450

(900)

365.8

1321-3RB400-B

(1200)

274.3

1321-3RB400-B

(900)

365.8

1321-3R400-B

(1200)

259.1

1321-3RB400-B

(850)

365.8

1321-3R500-B

(1200)

259.1

1321-3R500-B

(850)

365.8

1321-3R600-B

(1200)

259.1

1321-3R600-B

(850)

365.8

1321-3R600-B

(1200)

243.8

1321-3R600-B

(800)

365.8

1321-3R750-B

(1200)

213.4

1321-3R750-B

(700)

365.8

1321-3R850-B

(1200)

213.4

1321-3R850-B

(700)

(1) Requires two parallel cables. (2) Requires three parallel cables.

Resistor Available Options

)

(1)

20 495

(1)

20 990

(1)

20 495

(1)

20 990

(1)

20 495

(1)

20 990

(1)

20 495

(1)

20 990

(1)

20 495

(1)

20 990

(2)

20 735

(2)

20 1470

(2)

20 735

(2)

20 1470

TFA1

TFB2

RWR2

●

RWC

96 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Motor Cable Length Restrictions Tables Appendix A

Table 28 - PowerFlex 70 (standard/enhanced) and 700 (standard/vector) Drives, 600V Shielded/Unshielded Cable – Meters (Feet)

Drive

Rating No Solution Reactor Only 1321-RWR RWR

Frame

Hp kHz 1488V 1850V 1488V 1850V 1488V 1850V Cat. No.

70

700

2 42.7 (140) 121.9 (400) 121.9 (400) 121.9 (400) 121.9 (400) 121.9 (400)

1

A

B

C

D

E

4 30.5 (100) 121.9 (400) 30.5 (100) 121.9 (400) 121.9 (400) 121.9 (400)

2 42.7 (140) 152.4 (500) 152.4 (500) 152.4 (500) 152.4 (500) 152.4 (500)

2

4 30.5 (100) 137.2 (450) 30.5 (100) 152.4 (500) 152.4 (500) 152.4 (500)

2 42.7 (140) 152.4 (500) 152.4 (500) 182.9 (600) 182.9 (600) 182.9 (600)

3

0

4 30.5 (100) 137.2 (450) 30.5 (100) 152.4 (500) 182.9 (600) 182.9 (600)

2 42.7 (140) 152.4 (500) 152.4 (500) 243.8 (800) 243.8 (800) 243.8 (800) 1321-RWR8-EP

5

4 30.5 (100) 137.2 (450) 30.5 (100) 152.4 (500) 243.8 (800) 243.8 (800) 1321-RWR8-EP

2 42.7 (140) 152.4 (500) 152.4 (500) 304.8 (1000) 304.8 (1000) 304.8 (1000) 1321-RWR12-EP

7.5 4 30.5 (100) 137.2 (450) 30.5 (100) 152.4 (500) 304.8 (1000) 304.8 (1000) 1321-RWR12-EP

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR12-EP

10

4 30.5 (100) 137.2 (450) 30.5 (100) 152.4 (500) 304.8 (1000) 365.8 (1200) 1321-RWR12-EP

1

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR18-EP

15

4 30.5 (100) 137.2 (450) 30.5 (100) 152.4 (500) 304.8 (1000) 365.8 (1200) 1321-RWR18-EP

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR25-EP

20

4 30.5 (100) 137.2 (450) 30.5 (100) 152.4 (500) 304.8 (1000) 365.8 (1200) 1321-RWR25-EP

2

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR35-EP

25

4 30.5 (100) 137.2 (450) 30.5 (100) 152.4 (500) 304.8 (1000) 365.8 (1200) 1321-RWR35-EP

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR35-EP

30

4 30.5 (100) 137.2 (450) 36.6 (120) 152.4 (500) 304.8 (1000) 365.8 (1200) 1321-RWR35-EP

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR45-EP

40

3

4 30.5 (100) 137.2 (450) 36.6 (120) 152.4 (500) 304.8 (1000) 365.8 (1200) 1321-RWR45-EP

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR55-EP

50

4 36.6 (120) 137.2 (450) 45.7 (150) 152.4 (500) 304.8 (1000) 365.8 (1200) 1321-RWR55-EP

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR80-EP

4 60

4 36.6 (120) 137.2 (450) 45.7 (150) 152.4 (500) 274.3 (900) 365.8 (1200) 1321-RWR80-EP

2 42.7 (140) 182.9 (600) 152.4 (500) 365.8 (1200) 365.8 (1200) 365.8 (1200) 1321-RWR80-EP

75

4 36.6 (120) 137.2 (450) 45.7 (150) 152.4 (500) 274.3 (900) 365.8 (1200) 1321-RWR80-EP

5

2 42.7 (140) 182.9 (600) 152.4 (500) 304.8 (1000) 365.8 (1200) 365.8 (1200) 1321-RWR100-EP

100

4 42.7 (140) 137.2 (450) 45.7 (150) 152.4 (500) 274.3 (900) 365.8 (1200) 1321-RWR100-EP

2 42.7 (140) 182.9 (600) 121.9 (400) 304.8 (1000) 365.8 (1200) 365.8 (1200) 1321-RWR130-EP

125

4 42.7 (140) 137.2 (450) 45.7 (150) 152.4 (500) 228.6 (750) 365.8 (1200) 1321-RWR130-EP

6

2 42.7 (140) 182.9 (600) 121.9 (400) 304.8 (1000) 365.8 (1200) 365.8 (1200) 1321-RWR160-EP

150

4 42.7 (140) 137.2 (450) 45.7 (150) 152.4 (500) 198.1 (650) 365.8 (1200) 1321-RWR160-EP

(see page 129

Available Optio ns

)

TFA1

TFB2

●●●

●

RWR2

RWC

●●

●

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 97

Appendix A Motor Cable Length Restrictions Tables

Table 29 - PowerFlex 700 (standard/vector) Drives, 690V Shielded/Unshielded Cable – Meters (Feet)

Drive No Solution Reactor Only Reactor and Damping Resistor Reactor Resistor Available Options

Frame kW kHz 1850V 2000V 1850V 2000V 1850V 2000V Cat. No. Ohms Watts

TFA1

TFB2

2 30.5 (100) 106.7 (350) 91.4 (300) 152.4 (500) 365.8 (1200) 365.8 (1200) 1321-3R80-C 50 345

45

4

5

6

4 24.4 (80) 76.2 (250) 36.6 (120) 121.9 (400) 213.4 (700) 274.3 (900) 1321-3R80-C 50 690

2 30.5 (100) 106.7 (350) 91.4 (300) 152.4 (500) 365.8 (1200) 365.8 (1200) 1321-3R80-C 50 345

55

4 24.4 (80) 76.2 (250) 36.6 (120) 106.7 (350) 213.4 (700) 274.3 (900) 1321-3R80-C 50 690

2 30.5 (100) 106.7 (350) 91.4 (300) 152.4 (500) 365.8 (1200) 365.8 (1200) 1321-3R100-C 50 345

75

4 30.5 (100) 76.2 (250) 36.6 (120) 106.7 (350) 213.4 (700) 274.3 (900) 1321-3R10 0-C 50 690

2 30.5 (100) 106.7 (350) 91.4 (300) 152.4 (500) 365.8 (1200) 365.8 (1200) 1321-3R130-C 50 375

90

4 30.5 (100) 76.2 (250) 36.6 (120) 106.7 (350) 182.9 (600) 274.3 (900) 1321-3R13 0-C 50 750

2 30.5 (100) 106.7 (350) 91.4 (300) 152.4 (500) 365.8 (1200) 365.8 (1200) 1321-3R160-C 50 375

110

4 30.5 (100) 76.2 (250) 36.6 (120) 99.1 (325) 152.4 (500) 274.3 (900) 1321-3R160-C 50 750

2 30.5 (100) 106.7 (350) 91.4 (300) 152.4 (500) 365.8 (1200) 365.8 (1200) 1321-3R200-C 50 375

132

4 30.5 (100) 76.2 (250) 36.6 (120) 83.8 (275) 152.4 (500) 274.3 (900) 1321-3R200-C 50 750

RWR2

RWC

PowerFlex 700H

This section lists motor cable length restrictions, reactors, and available options for PowerFlex 700H drives.

Table 30 - PowerFlex 700H Drives, 400V Shielded/Unshielded Cable – Meters (Feet)

Drive No Solution Reactor Only Reactor and Damping Resistor

or 1321-RWR

Reactor/RWR (see page 129

Frame kW kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. Ohms Watts

24.4

48.8

76.2

137.2

24.4

48.8

365.8

121.9

274.3

365.8

9

10

11

12

13

(1)

132 2

160 2

200 2

250 2

315 2

355 2

400 2

450 2

500 2

560 2

(2)

630

(2)

710

(2)

800

(80)

(160)

(250)

(450)

(80)

(160)

(1200)

(400)

(900)

24.4

48.8

76.2

137.2

24.4

48.8

365.8

121.9

(80)

(160)

(250)

(450)

(80)

(160)

(1200)

24.4

48.8

76.2

121.9

24.4

48.8

365.8

(80)

(160)

(250)

(400)

(80)

(160)

24.4

48.8

61.0

121.9

24.4

(80)

(160)

(200)

(400)

18.3

42.7

61.0

(60)

(140)

18.3

42.7

(60)

(140)

18.3

42.7

(60)

(140)

18.3

42.7

(60)

(140)

12.2

42.7

(40)

(140)

12.2

42.7

(40)

(140)

12.2 (40)

61.0 (200)

2

(200)

61.0 (200)

99.1 (325)

121.9 (400)

167.6 (550)

(80)

18.3 (60)

36.6 (120)

48.8 (160)

42.7 (140)

61.0 (200)

(1200)

365.8 (1200)

304.8 (1000)

274.3 (900)

243.8 (800)

304.8 (1000)

365.8 (1200)

(400)

121.9 (400)

198.1 (650)

274.3 (900)

243.8 (800)

274.3 (900)

(1200)

365.8 (1200)

365.8 1321-RWR320-DP

(1200)

365.8 1321-RWR320-DP

(1200)

365.8 1321-3R500-B 20 495

(1200)

365.8 1321-3R500-B 20 495

(1200)

365.8 1321-3R600-B 20 495

(1200)

365.8 1321-3R750-B 20 495

(1200)

365.8 1321-3R750-B 20 735

(1200)

2 x

365.8

(1200)

1321-3RB400-B

365.8

2 x

(1200)

1321-3R500-B

365.8

2 x

(1200)

1321-3R500-B

365.8

2 x

(1200)

1321-3R600-B

365.8

2 x

(1200)

1321-3R750-B

365.8

2 x

(1200)

1321-3R750-B

(1) Frame 12 drives have dual inverters and require two output reactors. The resistor ratings are per phase values for each reactor. (2) Some Frame 13 drives require two output reactors to match drive amp rating. The resistor ratings are per phase values for each reactor. (3) Resistor specification is based on two cables per phase. (4) Resistor specification is based on three cables per phase. (5) Resistor specification is based on four cables per phase.

Resistor Available Options

)

40 375

20 525

TFA1

TFB2

RWR2

●

(3)

(4)

(5)

●

RWC

98 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Table 31 - PowerFlex 700H Drives, 480V Shielded/Unshielded Cable – Meters (Feet)

Motor Cable Length Restrictions Tables Appendix A

Drive No Solution Reactor Only Reactor and Damping Resistor

or 1321-RWR

Reactor/RWR (see page 129

Resistor Available Options

)

Frame Hp kHz 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V 1000V 1200V 1488V 1600V Cat. No. O hms Watts

12.2

24.4

42.7

76.2

12.2

24.4

106.7

152.4

61.0

167.6

304.8

9

10

11

12

13

(1)

200 2

250 2

300 2

350 2

450 2

500 2

600 2

700 2

800 2

900 2

(2)

1000

(2)

1200

(2)

1250

(40)

(80)

(140)

(250)

(40)

(80)

(350)

(500)

(200)

(550)

12.2

24.4

42.7

76.2

12.2

24.4

91.4

121.9

61.0

(40)

(80)

(140)

(250)

(40)

(80)

(300)

(400)

12.2

24.4

42.7

76.2

12.2

24.4

76.2

(40)

(80)

(140)

(250)

(40)

(80)

12.2

24.4

42.7

76.2

12.2

(40)

(80)

(140)

(250)

12.2

24.4

36.6

(40)

(80)

12.2

24.4

(40)

(80)

12.2

24.4

(40)

(80)

12.2

24.4

(40)

(80)

12.2

24.4

(40)

(80)

12.2

24.4

(40)

(80)

12.2 (40)

30.5 (100)

2

(120)

36.6 (120)

61.0 (200)

121.9 (400)

(40)

12.2 (40)

24.4 (80)

45.7 (150)

(250)

76.2 (250)

61.0 (200)

45.7 (150)

61.0 (200)

91.4 (300)

121.9 (400)

(200)

61.0 (200)

45.7 (150)

152.4 (500)

121.9 (400)

106.7 (350)

152.4 (500)

(1000)

304.8 (1000)

274.3 (900)

243.8 (800)

304.8 (1000)

365.8 1321-RWR320-DP

(1200)

365.8 1321-RWR320-DP

(1200)

365.8 1321-3RB400-B 20 495

(1200)

365.8 1321-3R500-B 20 495

(1200)

365.8 1321-3R500-B 20 495

(1200)

365.8 1321-3R750-B 20 495

(1200)

365.8 1321-3R750-B 20 735

(1200)

365.8

2 x

(1200)

1321-3RB400-B

365.8

2 x

(1200)

1321-3R500-B

365.8

2 x

(1200)

1321-3R500-B

365.8

2 x

(1200)

1321-3R600-B

365.8

2 x

(1200)

1321-3R750-B

365.8

2 x

(1200)

1321-3R750-B

40 375

20 525

(1) Frame 12 drives have dual inverters and require two output reactors. The resistor ratings are per phase values for each reactor. (2) Some Frame 13 drives require two output reactors to match drive amp rating. The resistor ratings are per phase values for each reactor. (3) Resistor specification is based on two cables per phase. (4) Resistor specification is based on three cables per phase. (5) Resistor specification is based on four cables per phase.

TFA1

TFB2

RWR2

●

(3)

●

(3)

●

(3)

●

(3)

●

(4)

●

(4)

●

(4)

(5)

RWC

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 99

Appendix A Motor Cable Length Restrictions Tables

Table 32 - PowerFlex 700H Drives, 600V Shielded/Unshielded Cable – Meters (Feet)

Drive No S olution Reac tor Only Reactor and Damping Resistor

or 1321-RWR

Reactor/RWR (see page 129

Resistor Available Options

)

Frame Hp kHz 1488V 1850V 1488V 1850V 1488V 1850V Cat. No. Ohms Watts

150 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 198.1 (650) 365.8 (1200) 1321-RWR200-EP

9

200 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 198.1 (600) 365.8 (1200) 1321-RWR250-EP

250 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 167.6 (550) 365.8 (1200) 1321-3RB250-B 50 315

350 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 167.6 (550) 365.8 (1200) 1321-3RB350-B 20 585

10

400 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 167.6 (550) 365.8 (1200) 1321-3RB400-B 20 585

450 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 167.6 (550) 365.8 (1200) 1321-3R500-B 20 585

500 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 167.6 (550) 365.8 (1200) 1321-3R500-B 20 585

11

600 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 152.4 (500) 365.8 (1200) 1321-3R600-B 20 585

700 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 152.4 (500) 365.8 (1200) 2 x 1321-3RB320-B 40 300

(1)

12

800 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 152.4 (500) 365.8 (1200) 2 x 1321-3RB400-C 40 480

900 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 152.4 (500) 365.8 (1200) 2 x 1321-3R400-B 40 480

1000 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300 ) 152.4 (500) 365.8 (1200) 2 x 1321-3R500-C 20 480

(2)

13

1100 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300 ) 137.2 (450) 365.8 (1200) 2 x 1321-3R500-B 20 720

1300 2 24.4 (80) 45.7 (150) 61.0 (200) 91.4 (300) 137.2 (450) 365.8 (1200) 2 x 1321-3R600-B 20 72 0

(1) Frame 12 drives have dual inverters and require two output reactors. The resistor ratings are per phase values for each reactor. (2) Frame 13 drives requ ire two output reactors to match drive amp rating. The resistor ratings are per phase values for each reactor. (3) Resistor specification is based on two parallel cables per phase. (4) Resistor specification is based on three parallel cables per phase. (5) Resistor specification is based on four parallel cables per phase.

Table 33 - PowerFlex 700H Drives, 690V Shielded/Unshielded Cable – Meters (Feet)

TFA1

TFB2

RWR2

●

(3)

(4)

(5)

●

RWC

Drive No Solution Reactor Only Reactor and Damping Resistor Reactor Resistor Available Options

Frame kW kHz 1850V 2000V 1850V 2000V 1850V 2000V Cat. No. Ohms Watts

TFA1

TFB2

RWR2

160 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (400) 137 .2 (450) 1321-3RB250-C 50 480

9

200 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (400) 137 .2 (450) 1321-3RB250-C 50 480

250 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (400) 137 .2 (450) 1321-3RB400-C 50 480

315 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (400) 152 .4 (500) 1321-3RB400-C 20 960

10

355 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (4 00) 152 .4 (500) 1321-3R500-C 20 960

400 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (4 00) 152 .4 (500) 1321-3R500-C 20 960

450 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (4 00) 152 .4 (500) 1321-3R750-C 20 960

11

500 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (4 00) 152 .4 (500) 1321-3R750-C 20 960

560 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (4 00) 152 .4 (500) 1321-3R850-C 20 960

630 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (4 00) 152 .4 (500) 2 x1321-3R600-C 40 480

(1)

12

710 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (4 00) 152 .4 (500) 2 x1321-3R600-C 40 645

800 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (4 00) 152 .4 (500) 2 x1321-3R750-C 40 645

900 2 7.6 (25) 30.5 (100) 7.6 (25) 30.5 (100) 121.9 (400) 152 .4 (500) 2 x1321-3R600-C 40 645

13

(2)

1000

2 7.6 (25) 3 0.5 (100) 7.6 (25) 30.5 (100) 121.9 (400) 152.4 (500) 2 x1 321-3R600-C 20 840

(2)

1100

2 7.6 (25) 3 0.5 (100) 7.6 (25) 30.5 (100) 121.9 (400) 152.4 (500) 2 x1 321-3R750-C 20 840

(3)

(4)

(5)

(1) Frame 12 drives have dual inverters and require two output reactors. The resistor ratings are per phase values for each reactor. (2) Some Frame 13 drives require two output reactors to match drive amp rating. The resistor ratings are per phase values for each reactor. (3) Resistor specification is based on two parallel cables per phase. (4) Resistor specification is based on three parallel cables per phase. (5) Resistor specification is based on four parallel cables per phase.

RWC

PowerFlex 700L

This section lists motor cable length restrictions, reactors, and available options for PowerFlex 700L drives.

100 Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014

Rockwell Automation 1336T User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Wiring and Grounding Guidelines for Pulse Width Modulated (PWM) AC Drives

Important User Information

Summary of Changes

New and Updated Information

Table of Contents

Preface

About This Publication

Intended Audience

Additional Resources

Recommended Cable/Wire

General Precautions

Wire/Cable Types

General

Material

Exterior Cover

Temperature Rating

Gauge

Number of Conductors

Insulation Thickness and Concentricity

Geometry

Unshielded Cable

Shielded Cable

Armored Cable

European Style Cable

Input Power Cables

Motor Cables

Cable for Discrete Drive I/O

Analog Signal and Encoder Cable

Communication

DeviceNet

ControlNet

Ethernet

Remote I/O and Data Highway Plus (DH+)

Serial (RS-232 and RS-485)

Power Distribution

System Configurations

Delta/Wye with Grounded Wye Neutral

Delta/Delta with Grounded Leg, or Four-wire Connected Secondary Delta

Three-phase Open Delta with Single-phase Center Tapped

Ungrounded Secondary

High Resistance Ground

TN-S Five-wire System

AC Line Voltage

AC Line Impedance

Multi-drive Protection

Surge Protection MOVs and Common Mode Capacitors

Use PowerFlex Drives with Regenerative Units

DC Bus Wiring Guidelines

Drive Lineup

DC Bus Connections

Grounding

Grounding Safety Grounds

Building Steel

Grounding PE or Ground

RFI Filter Grounding

Grounding Motors

Grounding and TN-S Five-wire Systems

Noise Related Grounds

Acceptable Grounding Practices

Effective Grounding Practices

Optimal – Recommended Grounding Practices

Cable Shields

Isolated Inputs

Best Practices

Mounting

Standard Installations

EMC Specific Installations

Layout

Hardware

Conduit Entry

Entry Plates

Cable Connectors/Glands

Shield Termination via Pigtail (lead)

Ground Connections

Wire Routing

General