Yaskawa E7B User Manual

E7B Drive/Bypass

Technical Manual

Model: E7B Document Number: TM.E7B.01

Quick Reference for Bypass Parameters

Parameter

Number

A1-00 0 b5-04 100 E1-05 240V or 480V L1-05 0.2

A1-01 2 b5-06 100 E1-06 60 L2-01 2

A1-03 0 b5-07 0 E1-07 3 L2-02 0.1

A1-04 0 b5-08 0 E1-08 18 L2-03 0.1

A1-05 0 b5-09 0 E1-09 1.5 L2-04 0.3

A2-01 b5-10 1 E1-10 10.8 L2-05 190

A2-02 b5-11 0 E1-11 0 L3-01 1

A2-03 b5-12 0 E1-12 0 L3-02 120

A2-04 b5-13 0 E1-13 0 L3-04 1

A2-05 b5-14 1 E2-01 kVA Dep. L3-05 1

A2-06 b5-15 0 E2-03 kVA Dep. L3-06 120

A2-07 b5-16 0 E2-05 kVA Dep. L4-01 0

A2-08 b5-17 0 F6-01 3 L4-02 2

A2-09 b5-18 0 F6-02 0 L4-05 0

A2-10 b5-19 0 F6-03 1 L4-06 80

A2-11 b5-20 1 F6-05 0 L5-01 10

A2-12 b5-21 1 H1-01 70 L5-02 0

A2-13 b5-22 0 H1-02 L5-03 600

A2-14 b5-23 0 H1-03

A2-15 b5-24 0 L6-02 15

A2-16 b5-25 0 L6-03 10

A2-17 b5-26 0 H1-04 4 L8-01 0

A2-18 b5-27 60 H1-05 6 L8-02 95

A2-19 b5-2

A2-20 b5-29 1 H2-02 3B L8-06 kVA Dep.

A2-21 b5-30 0 H3-02 See Table 2 of

A2-22 b8-01 1 L8-10 0

A2-23 b8-04 kVA Dep. L8-11 300

A2-24 b8-05 20 H3-03 0 L8-12 45

A2-25 b8-06 0 H3-08 See Table 2 of

A2-26 C1-01 60 L8-18 1

A2-27 C1-02 60 L8-19 20

A2-28 C1-03 30 H3-09 See Table 2 of

A2-29 C1-04 30 n1-02 1

A2-30 C1-09 10 n3-01 5

A2-31 C1-11 0 H3-10 100 n3-02 150

A2-32 C2-01 0.2 H3-11 0 n3-03 1

b1-01 See Table 2 of

b1-02 1 C6-02 kVA Dep. o1-03 0

b1-03 0 C6-03 kVA Dep. H4-01 2 o1-05 3

b1-04 1 C6-04 kVA Dep. H4-02 100 o1-06 0

b1-07 1 C6-05 0 H4-03 0 o1-07 2

b1-08 1 d1-01 10.0 H4-04 8 o1-08 3

b1-11 0 d1-02 6.0 H4-05 50 o2-01 1

b1-12 0 d1-03 0 H4-06 0 o2-02 0

b2-01 0.5 d1-04 40 H4-07 0 o2-03 0

b2-02 50 d1-17 6 H4-08 0 o2-04 kVA Dep.

b2-03 5.0 d2-01 100 H5-01 1F o2-05 1

b2-04 0 d2-02 0 H5-02 3 o2-06 1

b2-09 0 d2-03 0 H5-03 0 o2-07 0

b3-01 2 d3-01 0 H5-04 3 o2-08 1

b3-02 120 d3-02 0 H5-05 1

b3-03 2 d3-03 0 H5-06 5

b3-05 0.2 d3-04 1 H5-07 1

b3-14 1 d4-01 0 H5-08 0

b4-01 0 d4-02 10 H5-09 2

b4-02 0 E1-01 208, 240V or

b5-01 0 L1-02 8

b5-02 2 E1-03 F L1-03 3

b5-03 5 E1-04 60 L1-04 1

Factory
Setting

the bypass

schematic

User

Setting

Parameter

Number

8 0 H2-01 0 L8-03 4

C2-02 0.2 H3-12 0.3 n3-04 40

C4-01 1 H3-13 See Table 2 of

C4-02 200 o1-02 1

Factory
Setting

480V

User

Setting

Parameter

Number

L1-01 1

Factory

Setting

See Table 2 of

the bypass

schematic

the bypass

schematic

the bypass

schematic

the bypass

schematic

the bypass

schematic

User

Setting

Parameter

Number

L6-01 6

L8-09 1

L8-15 1

n1-01 1

o1-01 6

o2-10

o2-12 0

o2-14 0

o2-15 0

o3-01 0

o3-02 1

T1-02 kVA Dep.

T1-04 kVA Dep.

Factory
Setting

User

Setting

0

Warnings and Cautions

WARNING

WARNING

This Section provides warnings and cautions pertinent to this product, that if not
heeded, may result in personal injury, fatality, or equipment damage. Yaskawa is
not responsible for consequences of ignoring these instructions.

YASKAWA manufactures component parts that can be used in a wide variety of industrial applications. The selection and
application of YASKAWA products remain the responsibility of the equipment designer or end user. YASKAWA accepts no
responsibility for the way its products are incorporated into the final system design. Under no circumstances should any
YASKAWA product be incorporated into any product or design as the exclusive or sole safety control. Without exception, all
controls should be designed to detect faults dynamically and fail safely under all circumstances. All products designed to
incorporate a component part manufactured by YASKAWA must be supplied to the end user with appropriate warnings and
instructions as to that part’s safe use and operation. Any warnings provided by YASKAWA must be promptly provided to the
end user. YASKAWA offers an express warranty only as to the quality of its products in conforming to standards and
specifications published in the YASKAWA manual. NO OTHER WARRANTY, EXPRESS OR IMPLIED, IS OFFERED.
YASKAWA assumes no liability for any personal injury, property damage, losses, or claims arising from misapplication of its
products.

•

Read and understand this manual before installing, operating, or servicing this Drive and Bypass Unit. All warnings, cautions,
and instructions must be followed. All activity must be performed by qualified personnel. The Drive must be installed accord
ing to this manual and local codes.

• Do not connect or disconnect wiring while the power is on. Do not remove covers or touch circuit boards while the power is

on.

• Before servicing, disconnect all power to the equipment. The internal capacitor remains charged even after the power supply

is turned off. Status indicator LEDs and Digital Operator display will be extinguished when the DC bus voltage is below
50 VDC. To prevent electric shock, wait at least five minutes after all indicators are OFF and measure DC bus voltage level
to confirm safe level.

• Do not perform a withstand voltage test on any part of the unit. This equipment uses sensitive devices and may be damaged

by high voltage.

• The Drive and Bypass unit is not suitable for circuits capable of delivering more than the specified RMS symmetrical

amperes. Install adequate branch short circuit protection per applicable codes. Refer to the specification. Failure to do so
may result in equipment damage and/or personal injury.

• Do not connect unapproved LC or RC interference suppression filters, capacitors, or overvoltage protection devices to the

output of the Drive. These devices may generate peak currents that exceed Drive specifications.

• To avoid unnecessary fault displays caused by contactors or output switches placed between Drive and motor, auxiliary

contacts must be properly integrated into the control logic circuit.

• YASKAWA is not responsible for any modification of the product made by the user; doing so will void the warranty. This

product must not be modified.

• Verify that the rated voltage of the Drive and Bypass unit matches the voltage of the incoming power supply before applying

power.

• To meet CE directives, proper line filters and proper installation are required.

i

-

WARNING

• Some drawings in this manual may be shown with protective covers or shields removed, to describe details. These must be

replaced before operation.

• Observe electrostatic discharge procedures when handling circuit cards to prevent ESD damage.

• The equipment may start unexpectedly upon application of power. Clear all personnel from the Drive, motor, and machine

area before applying power. Secure covers, couplings, shaft keys, and machine loads before energizing the Drive and Bypass
unit.

• Please do not connect or operate any equipment with visible damage or missing parts. The operating company is responsible

for any injuries or equipment damage resulting from failure to heed the warnings in this manual.

 Intended Use

Drives and Bypass Units are intended for installation in electrical systems or machinery.

For use in the European Union, the installation in machinery and systems must conform to the following product standards of
the Low Voltage Directive:
EN 50178, 1997-10, Equipping of Power Systems with Electronic Devices
EN 60201-1, 1997-12 Machine Safety and Equipping with Electrical Devices

Part 1: General Requirements (IEC 60204-1:1997)/
EN 61010, 1997-11Safety Requirements for Information Technology Equipment
(IEC 950:1991 + A1:1992 + A2:1993 + A3:1995 + A4:1996, modified)

Other

The Drive and Bypass unit is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical
amperes, 240Vac maximum (240V Class) and 480Vac maximum (480V Class).

This manual is for reference only and subject to change without notice.

ii

Introduction

This Section describes the applicability of the Manual

 Product Description

The E7 Bypass unit provides a means of bypassing the Drive while allowing the motor to operate at full speed, directly from
the AC line. It incorporates an AC Drive and three contactor Bypass arrangement in a single UL listed enclosure. The three
electrically in terlocked IEC rated contactors isolate the Drive when operating in Bypass mode.

Control logic provides industry standard Hand/Off/Auto functions and safety circuit interlocks in both drive and Bypass op erating modes.

E7 Bypass components include: a fused 120 VAC control circuit transformer, an input Motor Circuit Protector (MCP) circuit breaker/disconnect, motor overload relay, selector switches and indicating lights.

The E7 Drive, a component of the E7 Bypass package, is a Pulse Width Modulated Drive for 3-Phase AC induction motors.
This type of Drive is also known as an Adjustable Frequency Drive, Variable Frequency Drive, AC Drive, AFD, ASD, VFD,
and Inverter. In this manual, the E7 Drive will be referred to as the “Drive”.

The Drive is a variable torque AC drive, designed specifically for HVAC applications in building automation, including fans,
blowers and pumps. A new benchmark for size, cost, performance, benefits, and quality, the Drive includes numerous
built-in features such as network communications, H/O/A, PI, parameter storage and copy functions.

The Drive has embedded communications for the popular building automation protocols, Johnson Controls Metasys® N2 and Siemens APOGEE™ FLN, as well as Modbus®. An optional LONWORKS® interface card is also available.

The LCD keypad/operator is equipped with Hand/Off/Auto functions, copy feature, 7 language choices, and 5 lines of display
with 16 characters per line. User parameter settings can be recovered at any time via “User Initialization”. Optional
DriveWizard software allows upload/download, as well as graphing and monitoring of drive parameters from a PC for ease of
drive management.

Built-in PI control eliminates the need for closed loop output signals from a building automation system. It includes feedback
display, inverse, square root and differential control functions, and maintains setpoint for closed loop control of fans and
pumps for pressure, flow, or temperature regulation.

This manual is applicable to E7 Drives defined by model numbers CIMR-E7U_ _ _ _ contained within Bypass units defined by model numbers E7B_ _ _ _. This manual reflects the software version 4010.

This manual is subject to change as product improvements occur. The latest version of the manual can be obtained from the
Yaskawa website

www.yaskawa.com . The date shown on the rear cover is changed when revisions are made.

Introduction iii

This manual may describe trademarked equipment, which is the property of other companies. These trademarks are the property of the registered owner companies and may include the following:

APOGEE

Metasys®, trademark of Johnson Controls Inc.

Modbus®, trademark of Schneider Automation, Inc.

LONWORKS®, trademark of Echelon Corporation

Other Documents and Manuals are available to support special use or installation of this product. These documents may be provided with the product or upon request or downloaded from www.drives.com. Documents may include the following:

TM.E7.02.Programming … Manual included on CD ROM with product
TM.E7.11.Modbus … Manual included on CD ROM with product
TM.AFD.20.LONWORKS … Manual included on CD ROM with product

TM.E7.21.APOGEE … Manual included on CD ROM with product
TM. E7.22. Metasys … Manual included on CD ROM with product
DriveWizard … Software and Manual…Included on CD ROM with product
Option Instructions … Included on CD ROM with product

TM

FLN, trademark of Siemens Building Technologies, Inc.

 Definitions of Acronyms and Abbreviations

AC Alternating Current LRA Locked Rotor Amperes
AIC Amps Interrupting Capacity MCP Motor Circuit Protector
CB Circuit Breaker MTBF Mean Time Between Failures
CIMR Control Induction Motor Rotation NC Normally Closed
CN Connector NEC National Electrical Code
CPT Control Power Transformer NEMA National Electrical Manufacturers Association
CPU Central Processing Unit NO Normally Open
DIP Dual Inline Package OLR Over Load Relay
FLA Full Load Amperes PCB Printed Circuit Board
FVFF Forced Ventilated, inlet Filter, outlet Filter PI Proportional plus Integral control action
HOA Hand/Off/Auto RTS Request To Send
HP Horsepower SFS Soft Start
IEC International Electrotechnical Commission TB Terminal Block
IGV Inlet Guide Vanes THD Total Harmonic Distortion
IPM Intelligent Power Module VA Volt Amperes
KVA Kilo Volt Amperes VAC Volts Alternating Current
LED Light Emitting Diode VAV Variable Air Volume

 Terminology in This Manual

“Standard” or “Configured” options - are available with standard lead times

“Engineered” or “Custom” options - are available only with extended lead times

Introduction iv

 Resources Available

Document Number Description

TM.E7.01 E7 Drive User Manual

TM.E7.02 E7 Drive Programming Manual

TM.E7.21 E7 APOGEE™ FLN Technical Manual

TM.E7.22 E7 Metasys® N2 Technical Manual

IG.AFD.20 LONWORKS® Option Installation Guide

IG.AFD.23 BACnet Option Installation Guide

IG.AFD.50 3-15 PSI Pressure Transducer Installation Guide

IG.E7B.02 E7B Drive Bypass System with Touchpad Control Panel Option

CD.E7.01 CD ROM, Drives for Building Automation

Document Description

Table of Resources

Manuals, Installation Guides, and CD’s

Software

DriveWizard® Software DriveWizard® Software Version 5.3

ESP Energy Savings Predictor for E7

Flyers, Bulletins, Pricebook, Binders, And Specifications

Document Number Description

FL.E7.01 Flyer, 2 page, E7 Drives and Bypass Packages

BL.E7.01 Bulletin, Multi-page, E7 Drives and Bypass Packages

PB.E7.01 E7 Price Book

DRG.E7 E7 Drives Resources Guide Binder for Building Automation

SG.E7.01 EngSpec15172 E7 Specification Guide, Section 15172 for Consulting Engineers

SG.E7.10 SubmittalSpec E7 Submittal Specification

SG.E7B.10 SubmittalSpec E7 Bypass Submittal Specification

SG.E7C.10 SubmittalSpec E7 Configured Submittal Specification

SG.E7E.10 SubmittalSpec E7 Engineered Submittal Specification

See also www.drives.com.

Introduction v

Notes:

Introduction vi

Table of Contents

Quick Reference Parameter List ........................................................Inside front cover

Warnings and Cautions................................................................................................ i

Introduction..................................................................................................................iii

Chapter 1 - Physical Installation ...............................................................................1-1

Bypass Model Number and Enclosure Style .............................................................. 2

Enclosure Data ........................................................................................................... 4

Confirmations upon Delivery ...................................................................................... 7

Bypass Product Options ............................................................................................. 9

Bypass Component Descriptions ............................................................................. 11

Exterior and Mounting Dimensions .......................................................................... 17

Checking and Controlling Installation Site ................................................................ 24

Chapter 2 - Electrical Installation..............................................................................2-1

Termination Configuration - Power Wiring ................................................................. 2

Control Wiring ............................................................................................................. 9

Wiring Diagram ......................................................................................................... 20

Logic Diagram .......................................................................................................... 22

Chapter 3 - Control Panel ..........................................................................................3-1

Digital Operator and Control Panel Display ............................................................... 2

Drive Main Menus ......................................................................................................8

Example of Changing a Parameter .......................................................................... 16

Chapter 4 - Start Up and Operation ..........................................................................4-1

Start Up Introduction ..................................................................................................2

Bypass Start Up Preparation.......................................................................................3

Bypass Unit Start Up Procedure .................................................................................4

Bypass Operation Description.....................................................................................8

Chapter 5 - Programming ..........................................................................................5-1

Bypass Basic Programming Parameters ...................................................................2

Table of Contents vii

Chapter 6 - Diagnostics & Troubleshooting ........................................................... 6-1

Bypass Diagnostics ....................................................................................................2

Drive Diagnostics .......................................................................................................3

Drive Troubleshooting .............................................................................................. 17

Drive Main Circuit Test Procedure ............................................................................ 23

Drive Date Stamp Information .................................................................................. 27

Chapter 7 - Maintenance ............................................................................................7-1

Maintenance ...............................................................................................................2

Removing and Replacing Drive in a Bypass Unit .......................................................9

Appendix A - Parameters.......................................................................................... A-1

Parameter List ............................................................................................................ 2

Monitor List ...............................................................................................................26

Fault Trace List ........................................................................................................28

Fault History List ......................................................................................................29

Appendix B - Capacity Related Parameters............................................................ B-1

Drive Capacity ............................................................................................................2

Appendix C - Specifications ..................................................................................... C-1

Standard Drive and Bypass Specifications .................................................................2

Appendix D - Communication .................................................................................. D-1

Using Modbus Communication ..................................................................................2

Modbus Function Code Details .................................................................................. 7

Modbus Data Tables .................................................................................................. 9

Modbus Self-Diagnosis ............................................................................................14

Metasys N2 Point Database......................................................................................15

APOGEE FLN Point Database..................................................................................19

Appendix E - Peripheral Devices ............................................................................. E-1

Drive Input Fuse Selection for I2t Protection ............................................................... 2

General Peripheral Devices .......................................................................................4

Table of Contents viii

Appendix F - Replacement Parts ............................................................................. F-1

Bypass Replacement Parts......................................................................................... 2

Index .................................................................................................................... Index-1

Table of Contents ix

Notes:

Table of Contents x

Chapter 1

Physical Installation

This chapter describes the checks required upon receiving

and the installation process for a Drive and Bypass unit.

Bypass Model Number and Enclosure Style .................................. 2

Enclosure Data ............................................................................... 4

Confirmations upon Delivery .......................................................... 7

Receiving Checks ...................................................................... 7

Bypass Nameplate Information .................................................. 7

Bypass Unit Enclosures ............................................................. 8

Bypass Product Options ................................................................. 9

Bypass Component Descriptions ................................................. 11

Bypass Unit Front Control Panel ............................................ 11

Exterior and Mounting Dimensions .............................................. 17

Bypass Unit 30 HP and Below, 480 VAC;

15 HP and Below, 208V/240V ................................................. 17

Bypass Unit 30 HP and Below, 480 VAC;

15 HP and Below, 208V/240V With Add-On Box ................... 18

Bypass Unit 40 HP to 100 HP, 480 VAC;

20 HP to 40 HP, 208V/240V .................................................... 19

Bypass Unit 40 HP to 100 HP, 480 VAC;

20 HP to 40 HP, 208V/240V With Add-On Box ........................ 20

Bypass Unit 125 HP to 250 HP, 480 VAC;

50 HP to 125 HP, 208V ............................................................ 21

Dimensions and Weights ......................................................... 22

Checking and Controlling Installation Site .................................... 24

Installation Site ........................................................................ 24

Controlling the Ambient Temperature ...................................... 25

Protecting the Bypass Unit from Foreign Matter ...................... 25

Installation Orientation and Enclosure Considerations ............ 26

Physical Installation 1 - 1

Bypass Model Number and Enclosure Style

The Bypass covers two voltage ranges: 208-240 VAC and 480 VAC. Ratings applicable are from 1/2 to 500 HP.

Table 1.1 Bypass

Voltage

208 VAC

240 VAC

Bypass

Base Model Number

NEMA 1

E7BVD002 E7BBD002 0.5 2.4 CIMR-E7U22P2

E7BVD003 E7BBD003 0.75 3.5 CIMR-E7U22P2

E7BVD004 E7BBD004 1 4.6 CIMR-E7U22P2

E7BVD007 E7BBD007 2 7.5 CIMR-E7U22P2

E7BVD010 E7BBD010 3 10.6 CIMR-E7U22P2

E7BVD016 E7BBD016 5 16.7 CIMR-E7U23P7

E7BVD024 E7BBD024 7.5 24.2 CIMR-E7U27P5

E7BVD030 E7BBD030 10 30.8 CIMR-E7U27P5

E7BVD046 E7BBD046 15 46.2 CIMR-E7U2011

E7BVD059 E7BBD059 20 59.4 CIMR-E7U2015

E7BVD074 E7BBD074 25 74.8 CIMR-E7U2018

E7BVD088 E7BBD088 30 88 CIMR-E7U2022

E7BVD114 E7BBD114 40 114 CIMR-E7U2030

E7BVD143 E7BBD143 50 143 CIMR-E7U2037

E7BVD169 E7BBD169 60 169 CIMR-E7U2045

E7BVD211 E7BBD211 75 211 CIMR-E7U2055

E7BVD273 E7BBD273 100 273 CIMR-E7U2075

E7BVD343 E7BBD343 125 343 CIMR-E7U2090

E7BVD396 E7BBD396 150 396 CIMR-E7U2110

E7BVA002 E7BBA002 0.5 2.2 CIMR-E7U22P2

E7BVA003 E7BBA003 0.75 3.2 CIMR-E7U22P2

E7BVA004 E7BBA004 1 4.0 CIMR-E7U22P2

E7BVA006 E7BBA006 2 6.8 CIMR-E7U22P2

E7BVA009 E7BBA009 3 9.6 CIMR-E7U22P2

E7BVA015 E7BBA015 5 15.2 CIMR-E7U23P7

E7BVA022 E7BBA022 7.5 22 CIMR-E7U25P5

E7BVA028 E7BBA028 10 28 CIMR-E7U27P5

E7BVA042 E7BBA042 15 42 CIMR-E7U2011

E7BVA054 E7BBA054 20 54 CIMR-E7U2015

E7BVA068 E7BBA068 25 68 CIMR-E7U2018

E7BVA080 E7BBA080 30 80 CIMR-E7U2022

E7BVA104 E7BBA104 40 104 CIMR-E7U2030

*NEMA 12

FVFF

HP

Bypass

Continuous

Output
Current
(Amps)

Uses

Basic Drive

Model-Number

Physical Installation 1 - 2

Table 1.1 Bypass

Bypass

Base Model Number

Voltage

NEMA 1

E7BVA130 E7BBA130 50 130 CIMR-E7U2037

E7BVA154 E7BBA154 60 154 CIMR-E7U2037

230 VAC

480 VAC

* The Nema 12 FVFF Enclosure is ventilated and filtered with gaskets. UL does not recognize NEMA 12

ventilated enclosures, therefore, for UL purposes, these units are designated NEMA 1.

E7BVA192 E7BBA192 75 192 CIMR-E7U2045

E7BVA248 E7BBA248 100 248 CIMR-E7U2075

E7BVA312 E7BBA312 125 312 CIMR-E7U2075

E7BVA360 E7BBA360 150 360 CIMR-E7U2090

E7BVB001 E7BBB001 0.5 1.1 CIMR-E7U42P2

E7BVB001 E7BBB001 0.75 1.6 CIMR-E7U42P2

E7BVB002 E7BBB002 1 2.1 CIMR-E7U42P2

E7BVB003 E7BBB003 2 3.4 CIMR-E7U42P2

E7BVB004 E7BBB004 3 4.8 CIMR-E7U42P2

E7BVB007 E7BBB007 5 7.6 CIMR-E7U43P7

E7BVB011 E7BBB011 7.5 11 CIMR-E7U45P5

E7BVB014 E7BBB014 10 14 CIMR-E7U47P5

E7BVB021 E7BBB021 15 21 CIMR-E7U49P0

E7BVB027 E7BBB027 20 27 CIMR-E7U4011

E7BVB034 E7BBB034 25 34 CIMR-E7U4015

E7BVB040 E7BBB040 30 40 CIMR-E7U4018

E7BVB052 E7BBB052 40 52 CIMR-E7U4024

E7BVB065 E7BBB065 50 65 CIMR-E7U4030

E7BVB077 E7BBB077 60 77 CIMR-E7U4037

E7BVB096 E7BBB096 75 96 CIMR-E7U4045

E7BVB124 E7BBB124 100 124 CIMR-E7U4055

E7BVB156 E7BBB156 125 156 CIMR-E7U4075

E7BVB180 E7BBB180 150 180 CIMR-E7U4090

E7BVB240 E7BBB240 200 240 CIMR-E7U4110

E7BVB302 E7BBB302 250 302 CIMR-E7U4160

*NEMA 12

FVFF

(Continued)

HP

Bypass

Continuous

Output
Current
(Amps)

Uses

Basic Drive

Model-Number

Physical Installation 1 - 3

Enclosure Data

Table 1.2 208V Enclosure Data

Input

HP

Volts

0.75 E7U22P21 E7B_D003 3.5 3.8 68

208

Drive

1

Model
CIMR-

0.5 E7U22P21 E7B_D002 2.4 2.6 68

1 E7U22P21 E7B_D004 4.6 5.1 78

2 E7U22P21 E7B_D007 7.5 8.2 110

3 E7U22P21 E7B_D010 10.6 11.7 141

5 E7U23P71 E7B_D016 16.7 18.4 202

7.5 E7U27P51 E7B_D024 24.2 26.6 273

10 E7U27P51 E7B_D030 30.8 33.9 365

15 E 7U20111 E7B_D046 46.2 50.8 578

20 E7U20151 E7B_D059 59.4 65.3 653

25 E7U20181 E7B_D074 74.8 82.3 746

30 E7U20221 E7B_D088 88.0 96.8 939

40 E7U20301 E7B_D114 114.0 125.4 1340

50 E7U20370 E7B_D143 143.0 157.3 1523

60 E7U20450 E7B_D169 169.0 185.9 1762

75 E7U20550 E7B_D211 211.0 232.1 2244

100 E7U20750 E7B_D273 273.0 300.3 3003 1214 lbs

125 E7U20900 E7B_D343 343.0 377.3 3296 1330 lbs

150 E7U21100 E7B_D396 396.0 435.6 4029 1423 lbs

Bypass

Model

Number

2

NEC

FLA

OL
110 %
1 min

Note 1: Horsepower rating is based on a standard NEMA B 4-pole motor.

3

Heat

Loss

NEMA 1 & NEMA 12 -FVFF

Watts

H W D

29.48 19.06 13.66

40.48 25.63 14.66

84.00 25.63 26.25

Enclosure Dimensions

inches

Dimension Drawing

S-5512

Dimension Drawing

S-5514

Dimension Drawing

S-5525

4

Weight

Assembly

115 lbs

6

127 lbs 164 lbs

208 lbs

7

221 lbs 307 lbs

847 lbs

8

943 lbs

9

Enclosure Dimensions w/Add-on

5

of

NEMA 1 & NEMA 12-FVFF

H W D

inches

43.35 19.06 13.66

Dimension Drawing

S-5513

55.35 25.63 14.66
Dimension Drawing

S-5515

NOT REQUIRED

4

Weight5 of

Assembly

+Add-on

156 lbs

291 lbs

Electrical

Schematic

Box

E7B-00

Note 2: The underscore position in these model numbers codes for the enclosure type: V = NEMA1, B = NEMA12 FVFF.

Note 3: Heat loss is the amount of heat dissipated by the drive at full load with all standard options available inside the enclosure. Drive heat sink losses are

included in the heat loss data. Heat loss data is for the enclosure without the add-on enclosure.

Note 4: Height dimension (H) excludes the mounting screw tabs. Depth dimension (D) excludes MCP disconnect handle.

Note 5: This data represents the total weight with all possible standard options. Weight could be less depending on the options specified.

Note 6: All standard options are available in this size enclosure except options E (RFI Filter) and K (5% Output Reactor). Options E and K require the add-on

enclosure.

Note 7: All options are available in this size enclosure except E (RFI Filter), R (3% Line Reactor), and K (5% Output Reactor). Only option E combined with

either option R or option K can be installed in the add-on enclosure. Options R and K together require an increase in the size of the E7 Bypass Enclosure.
Contact the factory if all three options are required. Options D (2 Motor “OR”) or A (2 Motor “AND”) for 30 Hp and 40 Hp, or for 75 Hp and 100 Hp, require
the next size enclosure.

Note 8: Heat sink mounted externally varies the depth dimension depending on the drive size. Depth will not exceed dimension shown.

Note 9: All options are available in this size enclosure except options D (2 Motor “OR”) or A (2 Motor “AND”) for 75 Hp and 100 Hp require the next

size enclosure.

Physical Installation 1 - 4

Table 1.3 240/230V Enclosure Data

Input

Volts

240

230

HP

Drive

1

Model
CIMR-

0.5 E7U22P21 E7B_A002 2.2 2.4 68

0.75 E7U22P21 E7B_A003 3.2 3.5 68

1 E7U22P21 E7B_A004 4.0 4.4 78

2 E7U22P21 E7B_A006 6.8 7.5 110

3 E7U22P21 E7B_A009 9.6 10.6 141

5 E7U23P71 E7B_A015 15.2 16.7 202

7.5 E7U25P51 E7B_A022 22.0 24.2 273

10 E7U27P51 E7B_A028 28.0 30.8 365

15 E7 U20111 E7B_A042 42.0 46.2 578

20 E7U20151 E7B_A054 54.0 59.4 653

25 E7U20181 E7B_A068 68.0 74.8 746

30 E7U20221 E7B_A080 80.0 88.0 939

40 E7U20301 E7B_A104 104.0 114.4 1340

50 E7U20370 E7B_A130 130.0 143.0 1523

60 E7U20370 E7B_A154 154.0 169.4 1544

75 E7U20450 E7B_A192 192.0 211.2 1860

100 E7U20750 E7B_A248 248.0 272.8 3003 1214 lbs

125 E7U20750 E7B_A312 312.0 343.2 3045 1330 lbs

150 E7U20900 E7B_A360 360.0 396.0 3440 1423 lbs

Bypass

Model

Number

2

NEC
FLA

OL

110%

1 min

Note 1: Horsepower rating is based on a standard NEMA B 4-pole motor.

3

Heat

Loss
Watts

Enclosure Dimensions

NEMA 1 & NEMA 12 -FVFF

H W D

29.48 19.06 13.66

Dimension Drawing

40.48 25.63 14.66

Dimension Drawing

84.00 25.63 26.25

Dimension Drawing

inches

S-5512

S-5514

S-5525

4

Weight

Assembly

115 lbs

6

127 lbs 164 lbs

208 lbs

7

221 lbs 307 lbs

847 lbs

8

943 lbs

9

Enclosure Dimensions w/Add-on

5

of

NEMA 1 & NEMA 12-FVFF

H W D

inches

43.35 19.06 13.66

Dimension Drawing

S-5513

55.35 25.63 14.66

Dimension Drawing

S-5515

NOT REQUIRED

4

Weight5 of

Assembly

+Add-on

156 lbs

291 lbs

Electrical

Schematic

Box

E7B-00

Note 2: The underscore position in these model numbers codes for the enclosure type: V = NEMA1, B = NEMA12 FVFF.

Note 3: Heat loss is the amount of heat dissipated by the drive at full load with all standard options available inside the enclosure. Drive heat sink losses are

included in the heat loss data. Heat loss data is for the enclosure without the add-on enclosure.

Note 4: Height dimension (H) excludes the mounting screw tabs. Depth dimension (D) excludes MCP disconnect handle.

Note 5: This data represents the total weight with all possible standard options. Weight could be less depending on the options specified.

Note 6: All standard options are available in this size enclosure except options E (RFI Filter) and K (5% Output Reactor). Options E and K require the add-on

enclosure.

Note 7: All options are available in this size enclosure except E (RFI Filter), R (3% Line Reactor), and K (5% Output Reactor). Only option E combined with

either option R or option K can be installed in the add-on enclosure. Options R and K together require an increase in the size of the E7 Bypass Enclosure.
Contact the factory if all three options are required. Option A (2 Motor “AND”) for 30 Hp and 40 Hp, or for 75 Hp and 100 Hp, require the next size
enclosure. Option D (2 Motor “OR”) for 40 Hp, or for 75 Hp and 100 Hp, require the next size enclosure.

Note 8: Heat sink mounted externally varies the depth dimension depending on the drive size. Depth will not exceed dimension shown.

Note 9: All options are available in this size enclosure except options D (2 Motor “OR”) or A (2 Motor “AND”) for 75 Hp and 100 Hp require the next size

enclosure.

Physical Installation 1 - 5

Table 1.4 480V Enclosure Data

Input

HP

Volt s

0.75 42P21 E7B_B001 1.6 1.8 57

480

Drive

1

Model

CIMR-

0.5 42P21 E7B_B001 1.1 1.2 57

1 42P21 E7B_B002 2.1 2.3 62

2 42P21 E7B_B003 3.4 3.7 89

3 42P21 E7B_B004 4.8 5.3 121

5 43P71 E7B_B007 7.6 8.4 155

7.5 45P51 E7B_B011 11.0 12.1 217

10 47P51 E7B_B014 14.0 15.4 318

15 49P01 E7B_B021 21.0 23.1 404

20 40111 E7B_B027 27.0 29.7 408

25 40151 E7B_B034 34.0 37.4 485

30 40181 E7B_B040 40.0 44.0 618

40 40241 E7B_B052 52.0 57.2 1040

50 40301 E7B_B065 65.0 71.5 1045

60 40371 E7B_B077 77.0 84.7 1197

75 40451 E7B_B096 96.0 105.6 1357

100 40551 E7B_B124 124.0 136.4 1749

125 40750 E7B_B156 156.0 171.6 2032

150 40900 E7B_B180 180.0 198.0 2486

200 41100 E7B_B240 240.0 264.0 2955 1240 lbs

250 41600 E7B_B302 302.0 332.2 4225 1352 lbs

300 41850 E7B_B361 361.0 397.1 4425

350 41850 E7B_B414 414.0 455.4 4451

400 42200 E7B_B477 477.0 524.7 5099

450 42200 E7B_B515 515.0 566.5 5154

500 43000 E7B_B590 590.0 649.0 7329

Bypass

Model

Number

2

NEC

FLA

OL
110%
1 min

Note 1: Horsepower rating is based on a standard NEMA B 4-pole motor.

3

Heat

Loss

NEMA 1 & NEMA 12 -FVFF

Watts

H W D

29.48 19.06 13.66

40.48 25.63 14.66

84.00 25.63 26.25

Enclosure Dimensions

inches

Dimension Drawing

S-5512

Dimension Drawing

S-5514

Dimension Drawing

S-5525

TBD

4

Weight

Assembly

115 lbs

6

127 lbs 164 lbs

142 lbs

203 lbs

232 lbs

7

241 lbs

8

943 lbs

9

Enclosure Dimensions w/Add-on

5

of

TBD

NEMA 1 & NEMA 12-FVFF

H W D

43.35 19.06 13.66

Dimension Drawing

55.35 25.63 14.66

Dimension Drawing

inches

S-5513

S-5515

NOT REQUIRED

4

Weight5 of

Assembly

+Add-on

156 lbs

189 lbs

281 lbs

319 lbs

332 lbs

Electrical

Schematic

Box

E7B-00

Note 2: The underscore position in these model numbers codes for the enclosure type: V = NEMA1, B = NEMA12 FVFF.

Note 3: Heat loss is the amount of heat dissipated by the drive at full load with all standard options available inside the enclosure. Drive heat sink losses are

included in the heat loss data. Heat loss data is for the enclosure without the add-on enclosure.

Note 4: Height dimension (H) excludes the mounting screw tabs. Depth dimension (D) excludes MCP disconnect handle.

Note 5: This data represents the total weight with all possible standard options. Weight could be less depending on the options specified.

Note 6: All standard options are available in this size enclosure except options E (RFI Filter) and K (5% Output Reactor). Options E and K require the

add-on enclosure.

Note 7: All options are available in this size enclosure except E (RFI Filter), R (3% Line Reactor), and K (5% Output Reactor). Only option E combined with

either option R or option K can be installed in the add-on enclosure. Options R and K together require an increase in the size of the E7 Bypass Enclosure.
Contact the factory if all three options are required. Options D (2 Motor “OR”) or A (2 Motor “AND”) for 75 Hp and 100 Hp, or for 200 Hp and 250 Hp,
require the next size enclosure.

Note 8: Heat sink mounted externally varies the depth dimension depending on the drive size. Depth will not exceed dimension shown.

Note 9: All options are available in this size enclosure except options D (2 Motor “OR”) or A (2 Motor “AND”) for 200 Hp and 250 Hp require the next

size enclosure.

Physical Installation 1 - 6

Confirmations upon Delivery

A.C. INPUT

A.C. OUTPUT

Volts: 480

Hz: 50/60

Phase: 3

Amps: 71.6

Volts: 0-480

Hz: 0-60

Phase: 3

Amps: 65

Serial No: 4W033727440-0002
Model No,: E7BVB065R
Type: E7 BYPASS
W.D.: E7B-00
Inst. Manual: TM.E7.01,CD.E7.01

UNPN0001

 Receiving Checks

Check the following items as soon as the Drive and Bypass unit is delivered.

Table 1.5 Checks

Item Method

Has the correct model of Bypass unit been
delivered?

Is the Bypass unit damaged in any way?

Are any screws or other components loose? Use a screwdriver or the appropriate tool to check for tightness.

If you find any irregularities in the above items, contact the shipping company, the distributor or representative you purchased
the Bypass unit from or your Yaskawa office immediately.

The Bypass unit is thoroughly tested at the factory. Any damages or shortages evident when the equipment is received must be
reported immediately to the commercial carrier that transported the material. Shipping damage is not covered by the Yaskawa
warranty. After unpacking and inspecting for damage, verify that internal wire connections have not come loose during
shipment by spot checking wire terminations with a screwdriver or the appropriate tool.

Check the model number on the nameplate on the right side of the Bypass unit.
Reconcile with packing slip and/or order information.

Inspect the entire exterior of the Bypass unit to see if there are any dents,
scratches or other damage resulting from shipping.

Bypass unit storage must be in a clean and dry location. Maintain the factory packaging and provide covering as needed to pro­tect the Bypass unit from construction site dirt, water, debris and traffic prior to and during construction.

 Bypass Nameplate Information

A nameplate is attached to the right side of the enclosure and the inside of the door of each Bypass unit.

The nameplate shown below is an example for a standard Bypass unit.

Fig 1.1 Bypass Nameplate

(Example)

Physical Installation 1 - 7

 Drive Nameplate Information

Input Power Specifications

Output Power Specifications

Drive Model Number

Drive Enclosure and

Weight

Serial Number

UL File Number

A nameplate is also attached to the right side of the Drive inside the Bypass enclosure. The following nameplate is an example
for a standard Drive.

Revision Code

Fig 1.2 Drive Nameplate

(Example)

 Bypass Unit Model Numbers

The model number on the nameplate of the Bypass unit indicates the enclosure, voltage, Drive rated current and options of the
Bypass unit in alphanumeric codes.

E7BVB096RSL

BASE NUMBER OPTIONS

E 7 B

3-Contactor Bypass

E7

Enclosure

NEMA 1

V
B

NEMA 12

Voltage

208V

D

230/240V

A

480V

B

Current

NEC Rated Amps
(Ex.: “096” = 96A)

Motor Control

Touchpad & LED

T
Y

Touchpad & LCD

0 22mm Operators & LCD
D 2 Motor “OR”
A 2 Motor “AND”

0

None (leave blank)
Cap Filter

N

RFI Filter

E

0

None (leave blank)

F

Fuses

(1) 3% and 5% Bus Reactors are only available as an option on base numbers up to E7B_D074, A068, and
B040; larger drives have a Bus Reactor as standard.

(2) 3% Input Reactor, when combined with the standard Bus Reactor (available on base numbers E7B_D088,
A080, and B052 and above), yields a total of 5% input impedance.

(3) Serial Comm options (J), (L), (U) or (V) cannot be ordered if both (S) and (P) are combined.

(4) 2 Motor “OR” and 2 Motor “AND” options (D) and (A) are only available with 22mm operators option (0).

(5) Options (M) and (S) are not available with options (T) or (Y) - 4-20mA output is standard with options (T) or (Y).

(6) Not available with options (T) or (Y).

(4)

(4)

Input Filter

Input Fuses

Fig 1.3 Bypass Unit Model Number

Communications

Not Enabled (leave blank)

0

EtherNet/IP

2
L LonWorks
J Enable METASYS N2
U Enable APOGEE FLN
V Enable Modbus
3 BACnet

4-20mA Output

0

None (leave blank)

M

4-20 mA Output

3-15 PSI Transducer

0

None (leave blank)

P

3-15 PSI Transducer

Speed Pot

0

None (leave blank)

S

Speed Pot

Custom Nameplates

0

None (leave blank)

W

Custom Nameplates

Load Reactor

None (leave blank)

0
K

5% Load Reactor

Line Impedance

None (leave blank)

0
X

3% Bus Reactor

Z 5% Bus Reactor
R 3% Input Reactor

(3)

(6)

(5)

(3)

(3)

(5)

(1)

(1)

(2)

 Bypass Unit Enclosures

All Bypass units are intended for non-hazardous locations. Various enclosure types are provided to protect against the applica­tion environmental conditions:

Nema Type 1 Enclosures are constructed for indoor use to provide a degree of protection against incidental contact with
enclosed electrical equipment and falling dust or dirt.

NEMA Type 12 FVFF Enclosures. NEMA provides for both non-ventilated and ventilated NEMA 12 enclosures. When
ventilated, a suffix to the type number defines the ventilation method. A NEMA 12 FVFF enclosure has Forced Ventilation
with inlet air Filter and outlet air Filter. The internal pressure is positive with respect to the ambient pressure. UL does not
recognize NEMA 12 ventilated enclosures, therefore, these enclosures are designated NEMA 1 for UL purposes.

Physical Installation 1 - 8

Bypass Product Options

Option A - Two motor “AND” control: Allows the operation of two motors from one Drive or Bypass. Pump #1 “AND”
pump #2 are operated at the same speed via the output from one Drive or Bypass. The motors are always operated
simultaneously therefore, no transfer switch is involved. With the 2 motor “AND” option, motor OverLoad Relays and fuses
are provided for each motor and the Drive’s internal motor overload function is disabled.
The two motors can be of different capacity if this capacity difference was considered in the ordering process. The factory
needs to know the FLA value of each motor controlled in order to select the correct motor overload devices and fuses.
(Specifying different capacity motors results in longer, non-standard lead times).

Option D - Two motor “OR” control: A MTR #1/AUTO/MTR #2 selector switch is provided to allow local or remote motor
operation selection, between two identical motors, for control by either the Drive or the Bypass (for example, Pump #1 “OR”
AUTO “OR” Pump #2). In the AUTO position a contact closure from a BAS, at TB1 terminals 23 and 24, can switch between
the two motors. The two motors must be the same horsepower and current draw.

Option E - RFI/EMI Filter: Filters to further attenuate possible VFD generated noise. Radio frequency interference/electro
magnetic interference filters reduce conducted noise on the Drive input power leads and therefore, radiated noise from those
leads. This option is installed on the input power side of the Drive, between the input contactor and the Drive.

Option F - Drive Input Fuses: Fuses capable of protecting semiconductor devices, rated at 200 kAIC are connected to the line
side of the Drive, between the input contactor and the Drive, to protect the Drive semiconductors when motor or output
conductor short circuit faults occur.

Option J - Enable Embedded Serial Communications: A no cost option. The Drive in a Bypass unit is capable of network
communication via one of 3 embedded protocols. Specifying option J and the protocol to be employed (Metasys, APOGEE or
Modbus) will provide the necessary parameter settings and wiring (jumpers) to be network ready when delivered (Project
specific H5-0X parameters are setup by the user).

Option K - 5% Output Reactor: Employed on the output side of the Drive for reduction of peak voltages applied to the driven
motor. In long Drive to motor lead length situations, high carrier frequency and reflected waves can cause high voltage spikes
at the motor. An output reactor provides motor protection in these long motor lead length situations. This option is installed on
the output power side of the Drive, between the output contactor and the Drive.

Option L - Serial Communication, Echelon LonWorks: An isolated RS-422/485 circuit board provides LonTalk protocol for
network communication to a BAS. This option plugs into the CN2 connection on the Drive control circuit board.

Option M - 4 to 20 mA Output: Provides two programmable 0 to 10 VDC analog outputs or two programmable 4 to 20 mA
analog outputs.

Option N

of voltage distortion and electrical noise. This passive wye-delta capacitve filter is intended for installation on the VFD input in
order to protect other sensitive electronic loads, it provides attenuation of conducted RFI and EMI.

Option P - Pressure to Electrical Transducer: This transducer is employed when converting a pneumatic signal to an electrical
signal for use as the Drive speed command input. The need for this option comes up on retrofit applications when the
pneumatic signal that formerly controlled the pneumatic actuator on Inlet Guide Vanes (IGV), for example, is now to be used
to control the fan speed via the Drive. This option is wired to Drive terminals +V, A2 and AC, parameters H3-10 and
H3-11 are used for final field calibration of this input if there is jobsite variation from the typical 3 to 15 PSIG pneumatic
signal input range.

- Input Capacitive Network Radio Frequency Interference Filter: Electronic equipment can be sensitive to low levels

Physical Installation 1 - 9

Option R - 3% Input Line Reactor: Employed on the input side of the Drive for Total Harmonic Distortion (THD) suppres­sion. A line reactor also minimizes the potential for Drive input diode damage from line transients and reduces voltage peaks
on the DC bus capacitors. This option is installed on the input power side of the Drive, between the input contactor and the
Drive.

Option S - Speed Potentiometer: A door mounted single turn potentiometer for manual control of Drive output and motor
speed. This option is wired to Drive terminals +V, A1 and AC and is used as the local speed command input to the Drive
instead of the keypad up and down arrows. Parameters for use of this option in conjunction with other input signals are
detailed in Table 5.2.

Option W - Engraved Plastic Nameplate: An enclosure identification nameplate to carry the controlled equipment “tag
number”.

Option X - 3% DC Bus Reactor: Attenuates harmonic distortion by limiting the rate of rise of the input current. The bus
reactor is wired to the Drive (+1) and (+2) DC bus terminals to provide the equivalent impedance of a 3% input reactor. This
option is only used on the low end of the horsepower range where DC bus reactors are not a standard Drive component (25 HP
and below @ 208 VAC, 25 HP and below @ 240 VAC, and 30 HP and below @ 480 VAC.)

Option Z - 5% DC Bus Reactor: Attenuates harmonic distortion by limiting the rate of rise of the input current. The bus
reactor is wired to the Drive (+) and (-) DC bus terminals to provide the equivalent impedance of a 5% input reactor. This
option is only used on the low end of the horsepower range where DC bus reactors are not a standard Drive component
(25 HP and below @ 208 VAC, 25 HP and below @ 240 VAC, and 30 HP and below @ 480 VAC.)

Physical Installation 1 - 10

Bypass Component Descriptions

Keypad

MCP

Disconnect

Indicating Lights

Selector Switches

Operator

 Bypass Unit Front Control Panel

The external appearance, component names, and terminal arrangement of the Bypass unit is shown in Figures 1.4 through 1.8.

Fig 1.4 E7 Bypass Unit Appearance

 Keypad Operator

In a Bypass unit the keypad operator is mounted flush with the hinged door of the enclosure. The addition of a HAND/
OFF/AUTO selector switch for the Bypass logic circuit makes the Hand, Off and Auto keys on the standard Drive keypad

operator redundant. In this Bypass configuration the keypad Hand, Off and Auto keys are disabled in the Drive firmware and a
mask (membrane) is placed over the keypad operator to cover these keys, avoiding the potential for confusion. The membrane
over the Drive keypad is
order a separate keypad, part number CDR001115).

non-removable on these Bypass units (In order to use the keypad copy function on a Bypass unit -

 Indicating Lights

On the enclosure door just below the digital operator are six 22 mm, 24 VAC LED indicating lights for: “Control Power”,
“Drive Run”, “Bypass Run”, “Motor OL/Safeties Fault “Drive Fault” and “Smoke Purge”. LED type indicating lights are pro
vided to improve the reliability well beyond that of incandescent bulbs. LED’s have a MTBF of 100K hours, eliminating any
need for “push to test” type pilot lights.

Physical Installation 1 - 11

-

 HAND/OFF/AUTO Selector Switch

CAUTION

Only qualified service
personnel should use
the defeater feature.

A three position rotary switch employed to control the source of the motor start and speed commands in either the Drive or
Bypass operating modes.

Hand Position – Drive Mode: The Drive input and output contactors are energized and the Drive is given a run command.
Operation is via the local speed input from the keypad or optional speed potentiometer.

Hand Position – Bypass Mode:

line.

Off Position: No power is applied to the Bypass circuit. The Drive input and output contactors are energized and the Drive is
stopped (run command removed). The Off position takes precedence over a serial communication run command.

Auto Position – Drive Mode: The Drive input and output contactors are energized. The Drive is enabled to receive a run
command contact closure and speed input analog signal from a Building Automation System (BAS).

Auto Position – Bypass Mode: The motor full speed across-the-line run/stop is controlled by a BAS contact closure,
energizing the Bypass contactor.

The H/O/A switch must be in the AUTO position if serial communication is to be used for Drive run, stop and speed control.

The Bypass contactor is energized causing the motor to run at full speed directly across-the-

 DRIVE/BYPASS Selector Switch

A two position rotary switch selecting motor operation from the Drive or directly across-the-line. When transferring from
Drive operation to Bypass operation, the logic circuit will require the Bypass unit to stop the motor before completing the
transfer to full speed across-the-line operation.

 NORMAL/TEST Selector Switch

A two position rotary switch, test position is used to energize the Drive input contactor while operating in the Bypass mode
(via the HAND or AUTO switch position). In Drive mode switching from NORMAL to TEST position will remove the
power from the Drive and the motor will stop. In Bypass mode the test position powers the Drive for programming or other
“tests” while keeping it isolated from the motor.

 MCP Motor Circuit Protector Circuit Breaker/Disconnect

Electrically located on the input power side of the Bypass unit, the MCP adjustable, instantaneous trip circuit breaker
provides protection from short circuits for the motor power cables. The Bypass three phase input power connection is made to the
input terminals of the MCP. The door mounted rotary operating mechanism is a convenient means of disconnecting the Bypass
unit from line power for equipment maintenance. The MCP must be in the OFF position in order to open the enclosure door.
Service and troubleshooting personnel are provided with a means to defeat this door interlock. The rotary handle provides trip
indication and can be padlocked in the OFF position.

Defeater

Fig 1.5 MCP Handle Positions – RESET/LOCK, OFF, TRIP, ON Shown in the “ON” position

Physical Installation 1 - 12

 Internal Bypass Panel

Fig 1.6 MCP Handle Positions – Shown OFF, With Padlock

Digital Operator

PCB A3

Customer Wiring

Terminal Strip (TB1)

PCB A2

Drive

Line

Connections

Motor Circuit

Protector

Load

Connections

Overload

Relay

Control Power

Transformer

Fig 1.7 Internal Bypass Panel

Input

Contactor

(K1)

Physical Installation 1 - 13

Bypass

Contactor

(K3)

Output

Contactor

(K2)

TB1 Label Defining
Customer Control
Circuit Connection
Points

Fig 1.8 Control Terminal Strip

TB1 with Terminal Numbers
Printed on the PCB

Slide Switches for switch
selectable functions (Auto
Transfer, Remote Transfer and
Smoke Purge) are behind this
ribbon cable connector. See
Fig. 1.9 for details.

 Contactors

The Bypass is a “3 contactor Bypass” circuit employing IEC rated contactors in an electrically interlocked arrangement to
allow mutually exclusive operation in Drive or Bypass modes. To minimize enclosure space requirements, they are mounted in
a 3 contactor assembly.
The control logic and “soft start” characteristic of the Drive limit the Drive input and output contactors to motor FLA current
or less. For this reason, the Drive input and output contactors have lower current ratings than the Bypass contactor. The Bypass
contactor is exposed to motor inrush current (LRA) when starting the motor across-the-line and therefore requires a higher
current rating.

 OverLoad Relay

The OverLoad Relay (OLR) is mounted to the contactor assembly or back panel (depending on rating), just above the Bypass
contactor (see Figure 1.7). Electrically on the output power side of the Bypass unit, the adjustable thermal OLR provides
overload protection for the motor in both the Drive and Bypass operating modes. The Bypass three phase output power
connection to the motor is made to the output terminals of the overload relay. The OLR is set up in the factory to be a manual
reset device, requiring operator attention if an overload trip-out is experienced.

 Control Power Transformer

A Control Power Transformer (CPT) is provided to power the Bypass 120 VAC control circuit. The VA capacity is determined
by the control circuit and optional functions specified for the unit. 100 VA of extra transformer capacity for customer control
logic is provided in the standard unit and additional capacity is available as an “engineered” or “custom” option. The CPT
primary is fused in both legs, the secondary is fused when required by NEC (above 350 VA). One side of the transformer
secondary is grounded to the Bypass enclosure.

 Relay and Selector Switch Logic

Operating elements such as indicating lights and selector switches, as well as the control relay logic, have been incorporated
into a PCB assembly to eliminate the potential for loose wires after shipment and to control factory costs.
The operating elements are located on PCB A3, mounted to the inside of the enclosure door and ribbon cable connected to the
control relay logic PCB A2.
The control relay logic PCB A2 is mounted to the left hand side of the enclosure and contains the control circuit field wiring
terminal strip (TB1).

 Drive/Bypass logic interlocks explained

The Bypass 120 VAC relay logic circuit is interconnected with the Drive multi-function digital input terminals and multi­function digital output terminals to allow a single customer interface to control both Drive and Bypass circuits. Some of these
terminals are therefore not available for other field use.

Physical Installation 1 - 14

Drive Multi-function input terminals:

Terminal S1 receives the Drive run command from the 120 VAC relay logic circuit.

Terminal S3 receives the Drive run enable signal from the 120 VAC relay logic circuit.

Terminal S5 receives the Drive local/remote command from the 120 VAC relay logic circuit via the HAND/OFF/

AUTO and NORMAL/TEST selector switch.

Drive Multi-function output terminals:

Terminals M1 and M2 are a normally open Drive run relay contact used to communicate the Drive operational mode
to the 120 VAC relay logic circuit.

Terminals M3 and M4 are a normally open serial com. run status relay contact used to communicate the Drive
operational state to the 120 VAC relay logic circuit.

Terminals MA and MC are a normally open Drive fault relay contact used to communicate the Drive fault status to the
120 VAC relay logic circuit.

 PCB Jumpers explained

The S101 “Berg pin” jumper on the control relay logic PCB A2 is not for field use. It is employed only in the factory to enable
the 2 motor “OR” configured option. It is removed when this option is present and must be in place when this option is not part
of the unit specification (See Figure 1.9).
The S102 “Berg pin” jumper on the control relay logic PCB A2 is not for field use. It is employed only in the factory to enable
the Run/Stop Push Button (3 wire control) configured option. It is removed when this option is present and must be in place
when this option is not part of the unit specification (See Figure 1.9).
TB1 terminals 1 and 2 are jumpered (J1) as the unit is shipped from the factory. If a customer supplied series circuit of NC
safety devices is to be used, this jumper is removed and the safety circuit connected between terminals 1 and 2.
TB1 terminals 5 and 6 are jumpered (J2) as the unit is shipped from the factory. If a customer supplied Drive NO enabling
contacts are to be used (such as a damper end switch or occupied cycle timer), this jumper is removed and the enabling
contacts wired between terminals 5 and 6.

Physical Installation 1 - 15

 Switch Selectable Functions:

Slide Switches

PCB Jumpers

The slide switches used to select these functions are located on the relay controller Printed Circuit Board (PCB) A2
(See Figure 1.9). The factory default is for these functions to be de-selected.

Smoke Purge: When enabled (switch S105) this function allows a contact closure, between terminals 17 and 18 of
TB1, to transfer motor operation to bypass for a maximum capacity smoke control function. When in smoke purge
mode, during emergency fire/smoke situations, the motor overloads and safety interlock circuit are overridden to shift
the priority to protecting people rather than equipment.

Auto Transfer to Bypass: If enabled (switch S103), the E7 Bypass unit will automatically transfer the motor operation
from Drive to Bypass in the event of a Drive fault. When the Drive fault condition has cleared, this function is reset
by moving the circuit breaker to the OFF position, waiting for the keypad to go blank, then switching back to the
DRIVE position.

Before selecting this function in fan applications, care must be taken to ensure that the duct-work is

IMPORTANT

Remote Transfer to Bypass: When selected (switch S104) this function allows a contact closure from a BAS, between
terminals 25 and 26 of TB1, to transfer motor operation from Drive mode to Bypass mode. This remote tranfer to
Bypass function overrides the DRIVE/BYPASS manual switch.

designed to handle the pressure resulting from full speed operation with the VAV terminal unit dampers at
minimum position or closed.

Fig 1.9 Printed Circuit Board A2

Physical Installation 1 - 16

Exterior and Mounting Dimensions

BYPASS
RUN

CONTROL

POWER ON

E7

DRIVE

RUN

MOTOR OL/

SAFETIES FAULT

SMOKE
PURGE

DRIVE
FAULT

TEST

NORMAL

BYPASS

DRIVE

HAND

OFF

AUTO

RUN

STOP

FWD

REV

SEQ

REF

ALARM

AUTO

Monitor

MENU

ESC

DATA

ENTER

RESET

32.00

(812.8)

0.75
(19)

0.75
(19)

13.66
(347)

2.37

(60.2)

19.06

(484.1)

Ø0.50(4PLS)
(Ø12.7)


1.29

(32.8)

16.50

(419.1)

2.50

(63.5)

29.48

(748.8)

RECOMMENDED
CONDUIT
ENTRANCE AREA
TOP, BOTTOM 
AND SIDE

MIN. 6

(152.4)

MIN. 6
(152.4)

DIMENSIONS IN INCHES (MM), FOR REFERENCE ONLY

MIN. 1.50

(3.81)

TOP VIEW

 Bypass Unit 30 HP and Below, 480 VAC; 15 HP and Below, 208V/240V

Fig 1.10 Enclosure 1 for up to 30HP, 480 VAC

NEMA 1 and NEMA 12 FVFF Enclosures

Physical Installation 1 - 17

 Bypass Unit 30 HP and Below, 480 VAC; 15 HP and Below, 208V/240V

E7

BYPASS

NORMAL

TEST

SAFETIES FAULT

MOTOR OL/

DRIVE

PURGE

SMOKE

AUTO

HAND

OFF

FAULT

DRIVE

BYPASS

RUN

POWER ON

CONTROL

DRIVE
RUN

RUN

STOP

FWD

REV

SEQ

REF

ALARM

AUTO

Monitor

MENU

ESC

DATA
ENTER

RESET

32.00

(812.8)

0.75

(19)

0.75

(19)

Ø0.50(4PLS)

(Ø12.7)

13.50

(342.9)

16.50

(419.1)

1.29

(32.8)

5.37

(136.4)

19.06

(484.1)

12.60

(317.5)

44.60

(1132.8)

29.48

(748.8)

13.87
(3.81)

43.35

(1,101.2)

13.66
(347)

2.37

(60.2)

2.50

(63.5)

RECOMMENDED

CONDUIT
ENTRANCE AREA
TOP, BOTTOM 
AND SIDE

MIN. 6

(152.4)

MIN. 1.50

(3.81)

DIMENSIONS IN INCHES (MM), FOR REFERENCE ONLY

9.1 3.375

(231.1)

(85.7)

TOP VIEW

With Add-On Box

Fig 1.11 Enclosure 1, with Options Extension, for up to 30HP, 480 VAC

NEMA 1 and NEMA 12 FVFF Enclosures

Physical Installation 1 - 18