Omron SYSDRIVE MX2 SERIES User manual

MX2
Born to drive machines
Model: MX2
200 V Class Three-Phase Input 0.1 to 15 kW
200 V Class Single-Phase Input 0.1 to 2.2 kW
400 V Class Three-Phase Input 0.4 to 15 kW
USER’S MANUAL
Cat. No. I570-E2-01-X

Notice:
OMRON products are manufactured for use according to proper procedures
by a qualified operator and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this
manual. Always heed the information provided with them. Failure to heed pre-
cautions can result in injury to people or damage to property.
OMRON Product References
All OMRON products are capitalized in this manual. The word “Unit” is also
capitalized when it refers to an OMRON product, regardless of whether or not
it appears in the proper name of the product.
©OMRON, 2010
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is con-
stantly striving to improve its high-quality products, the information contained in this manual is subject to change without
notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility
for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in
this publication.

iii
Warranty and Limitations of Liability
Application Considerations
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials
and workmanship for a period of one year (or other period if specified) from date of
sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR
IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS
FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER
ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED
THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSE-
QUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY
WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED
ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price
of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR,
OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALY-
SIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED,
INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION,
ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regu-
lations that apply to the combination of products in the customer's application or
use of the products.
At the customer's request, OMRON will provide applicable third party certification
documents identifying ratings and limitations of use that apply to the products. This
information by itself is not sufficient for a complete determination of the suitability of
the products in combination with the end product, machine, system, or other appli-
cation or use.
The following are some examples of applications for which particular attention must
be given. This is not intended to be an exhaustive list of all possible uses of the
products, nor is it intended to imply that the uses listed may be suitable for the prod-
ucts:
o Outdoor use, uses involving potential chemical contamination or electrical interfer-
ence, or conditions or uses not described in this manual.
o Nuclear energy control systems, combustion systems, railroad systems, aviation
systems, medical equipment, amusement machines, vehicles, safety equipment,
and installations subject to separate industry or government regulations.
o Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS
RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A
WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE
OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE
INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

iv
Disclaimers
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable
product, or any consequence thereof.
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on
improvements and other reasons. It is our practice to change model numbers when
published ratings or features are changed, or when significant construction changes
are made. However, some specifications of the products may be changed without
any notice. When in doubt, special model numbers may be assigned to fix or estab-
lish key specifications for your application on your request. Please consult with your
OMRON representative at any time to confirm actual specifications of purchased
products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing pur-
poses, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in deter-
mining suitability and does not constitute a warranty. It may represent the result of
OMRON's test conditions, and the users must correlate it to actual application
requirements. Actual performance is subject to the OMRON Warranty and Limita-
tions of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be
accurate; however, no responsibility is assumed for clerical, typographical, or proof-
reading errors, or omissions.

v
Table of contents
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Hazardous High Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
General Precautions - Read These First! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Index to Warnings and Cautions in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
General Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
UL®Cautions, Warnings and Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Fuse Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi
SECTION 1
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
MX2 Inverter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Introduction to Variable-Frequency Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SECTION 2
Inverter Mounting and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Orientation to Inverter Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Basic System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Step-by-Step Basic Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Powerup Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Using the Front Panel Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
SECTION 3
Configuring Drive Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Choosing a Programming Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Using the Keypad Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
"D" Group: Monitoring Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
"F" Group: Main Profile Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
"A" Group: Standard Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
"B" Group: Fine Tuning Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
"C" Group: Intelligent Terminal Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
"H" Group: Motor Constants Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
"P" Group: Other Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
SECTION 4
Operations and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Connecting to PLCs and Other Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Control Logic Signal Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Intelligent Terminal Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Using Intelligent Input Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Using Intelligent Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Analog Input Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Analog Output Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Safe Stop Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
SECTION 5
Inverter System Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Component Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Dynamic Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

vi
Table of contents
SECTION 6
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Monitoring Trip Events, History, & Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Restoring Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Maintenance and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Appendix A
Glossary and Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Appendix B
ModBus Network Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Connecting the Inverter to ModBus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Network Protocol Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
ModBus Data Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Appendix C
Drive Parameter Setting Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Parameter Settings for Keypad Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Appendix D
CE-EMC Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
CE-EMC Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Omron EMC Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Appendix E
Safety (ISO 13849-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
How it works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Components to be combined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Periodical check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

vii
Safety Messages
For the best results with the MX2 Series inverter, carefully read this manual
and all of the warning labels attached to the inverter before installing and
operating it, and follow the instructions exactly. Keep this manual handy for
quick reference.
Definitions and Symbols
A safety instruction (message) includes a "Safety Alert Symbol" and a signal
word or phrase such as WARNING or CAUTION. Each signal word has the
following meaning:
!HIGH VOLTAGE This symbol indicates high voltage related warnings. It calls your attention to
items or operations that could be dangerous to you and other persons operat-
ing this equipment.
Read the message and follow the instructions carefully.
!WARNING indicates a potentially hazardous situation that, if not avoided, may result in
serious injury or death, or minor or moderate injury. Additionally there may be
significant property damage.
!Caution Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury or in severe property damage.
Step 1 Indicates a step in a series of action steps required to accomplish a goal. The
number of the step will be contained in the step symbol.
Note Notes indicates an area or subject of special merit, emphasizing either the
product's capability or common errors in operation or maintenance.
!Tip Tips give a special instruction that can save time or provide other benefits
while installing or using the product. The tip calls attention to an idea that may
not be obvious to first-time users of the product.
1 Hazardous High Voltage
!HIGH VOLTAGE Motor control equipment and electronic controllers are connected to hazard-
ous line voltages. When servicing drives and electronic controllers, there may
be exposed components with housing or protrusions at or above line potential.
Extreme care should be taken to protect against shock.
Stand on an insulating pad and make it a habit to use only one hand when
checking components. Always work with another person in case an emer-
gency occurs. Disconnect power before checking controllers or performing
maintenance. Be sure equipment is properly grounded. Wear safety glasses
whenever working on electronic controllers or rotating machinery.
1-1 Caution when using Safe Stop Function
When using Safe Stop function, make sure to check whether the safe stop
function properly works when installation (before starting operation). Please
carefully refer to Appendix E Safety (ISO 13849-1) on page 333

viii
General Precautions - Read These First! 2
2 General Precautions - Read These First!
!WARNING This equipment must be installed, adjusted, and serviced by qualified electri-
cal maintenance personnel familiar with the construction and operation of the
equipment and the hazards involved. Failure to observe this precaution may
result in bodily injury.
!WARNING The user is responsible to ensure that all driven machinery, drive train mecha-
nism not supplied by OMRON, and process line material are capable of safe
operation at an applied frequency of 150% of the maximum selected fre-
quency range to the AC motor. Failure to do so can result in destruction of
equipment and injury to personnel should a single-point failure occur.
!WARNING For equipment protection, install a ground leakage type breaker with a fast
response circuit capable of handling large currents. The ground fault protec-
tion circuit is not designed to protect against personal injury.
!WARNING HAZARDOUS OF ELECTRICAL SHOCK. DISCONNECT INCOMING
POWER BEFORE CHANGING WIRING, PUT ON OR TAKE OFF OPTIONAL
DEVICES OR REPLACE COOLING FANS.
!WARNING Wait at least ten (10) minutes after turning OFF the input power supply before
performing maintenance or an inspection. Otherwise, there is the danger of
electric shock.
!Caution Make sure to read and clearly understand these instructions before working
on MX2 series equipment.
!Caution Proper grounds, disconnecting devices and other safety devices and their
location are the responsibility of the user and are not provided by OMRON
!Caution Be sure to connect a motor thermal disconnect switch or overload device to
the MX2 series controller to assure that the inverter will shut down in the event
of an overload or an overheated motor.
!HIGH VOLTAGE Dangerous voltage exists until power light is OFF. Wait at least ten (10) min-
utes after input power is disconnected before performing maintenance.
!WARNING This equipment has high leakage current and must be permanently (fixed)
hard-wire to earth ground via two independent cables.

ix
General Precautions - Read These First! 2
!WARNING Rotating shafts and above-ground electrical potentials can be hazardous.
Therefore, make sure that all electrical work conform to the National Electrical
Codes and local regulations. Installation, alignment and maintenance must be
performed only by qualified personnel.
!Caution
a) Class I motor must be connected to earth ground via low resistive path
(<0.1)
b) Any motor used must be of a suitable rating.
c) Motors may have hazardous moving path. In this event suitable protec-
tion must be provided.
!Caution Alarm connection may contain hazardous live voltage even when inverter is
disconnected. When removing the front cover for maintenance or inspection,
confirm that incoming power for alarm connection is completely disconnected.
!Caution Hazardous (main) terminals for any interconnection (motor, contact breaker,
filter, etc.) must be inaccessible in the final installation.
!Caution The equipment is intended for installation in a cabinet. The end application
must be in accordance with BS EN60204-1. Refer to the section "Choosing a
Mounting Location" on page 27. The diagram dimensions are to be suitably
amended for your application.
!Caution Connection to field wiring terminals must be reliably fixed having two indepen-
dent means of mechanical support. Use a termination with cable support (fig-
ure below), or strain relief, cable clamp, etc.
!Caution A double-pole disconnection device must be fitted to the incoming main power
supply close to the inverter. Additionally, a protection device meet IEC947-1/
IEC947-3 must be fitted at this point (protection device data shown in 2-3-6
Determining Wire and Fuse Sizes on page 37).
Note The above instructions, together with any other requirements highlighted in
this manual, must be followed for continue LVD (European Low Voltage Direc-
tive) compliance.

x
Index to Warnings and Cautions in This Manual 3
3 Index to Warnings and Cautions in This Manual
Cautions and Warnings for Orientation and Mounting Procedures
!HIGH VOLTAGE Hazard of electrical shock. Disconnect incoming power before changing wir-
ing, put on or take off optional devices or replace cooling fans. Wait ten (10)
minutes before removing the front cover. .................................................... 22
!HIGH VOLTAGE Hazard of electrical shock. Never touch the naked PCB (printed circuit board)
portions while the unit is powered up. Even for switch portion, the inverter
must be powered OFF before you change. ................................................. 27
!WARNING In the cases below involving a general-purpose inverter, a large peak current
may flow on the power supply side, sometimes destroying the converter mod-
ule: ........................................................................................................ 27
1. The unbalance factor of the power supply is 3% or higher.
2. The power supply capacity is at least 10 times greater than the inverter ca-
pacity (or the power supply capacity is 500kVA or more).
a) Abrupt power supply changes are expected, due to the conditions
such as:
b) Several inverters are interconnected with a short bus.
c) A thyristor converter and an inverter are interconnected with a short
bus.
d) An installed phase advance capacitor opens and closes.
!Caution Be sure to install the unit on flame-resistant material such as a steel plate.
Otherwise, there is the danger of fire. ......................................................... 27
!Caution Be sure not to place any flammable materials near the inverter. Otherwise,
there is the danger of fire. ........................................................................... 27
!Caution Be sure not to let the foreign matter enter vent openings in the inverter hous-
ing, such as wire clippings, spatter from welding, metal shavings, dust, etc.
Otherwise, there is the danger of fire. ......................................................... 28
!Caution Be sure to install the inverter in a place that can bear the weight according to
the specifications in the text (Chapter 1, Specifications Tables). Otherwise, it
may fall and cause injury to personnel. ....................................................... 28
!Caution Be sure to install the unit on a perpendicular wall that is not subject to vibra-
tion. Otherwise, it may fall and cause injury to personnel. .......................... 28
!Caution Be sure not to install or operate an inverter that is damaged or has missing
parts. Otherwise, it may cause injury to personnel. 2-9Be sure to install the
inverter in a well-ventilated room that does not have direct exposure to sun-
light, a tendency for high temperature, high humidity or dew condensation,
high levels of dust, corrosive gas, explosive gas, inflammable gas, grinding-
fluid mist, salt damage, etc. Otherwise, there is the danger of fire. ............. 28
!Caution Be sure to maintain the specified clearance area around the inverter and to
provide adequate ventilation. Otherwise, the inverter may overheat and cause
equipment damage or fire. .......................................................................... 29

xi
Index to Warnings and Cautions in This Manual 3
Wiring - Warnings for Electrical Practice and Wire Specifications
!WARNING "USE 60/75 C Cu wire only" or equivalent. For models MX2-AB004, -AB007,
-AB022, -A2015, -A2022, -A2037, -A2055, -A2075L. ................................. 37
!WARNING "USE 75 C Cu wire only" or equivalent. For models MX2-AB002, -AB004,
A2002, -A2004, -A2007, -A4022, -A4030, -A4040, -A4055, -A4075. ......... 37
!WARNING "USE 60 C Cu wire only" or equivalent. For models MX2-A4004, -A4007,
and -A4015. ................................................................................................ 37
!WARNING "Open Type Equipment.".............................................................................. 38
!WARNING "Suitable for use on a circuit capable of delivering not more than 100k rms
symmetrical amperes, 240V maximum when protected by Class CC, G, J or R
fuses or circuit breaker having an interrupting rating not les than 100,000 rms
symmetrical amperes, 240 volts maximum". For 200V models ................... 36
!WARNING "Suitable for use on a circuit capable of delivering not more than 100k rms
symmetrical amperes, 480V maximum when protected by Class CC, G, J or R
fuses or circuit breaker having an interrupting rating not les than 100,000 rms
symmetrical amperes, 480 volts maximum." For 400V models ................... 36
!HIGH VOLTAGE Be sure to ground the unit. Otherwise, there is a danger of electric shock and/
or fire. .......................................................................................................... 36
!HIGH VOLTAGE Wiring work shall be carried out only by qualified personnel. Otherwise, there
is a danger of electric shock and/or fire. ..................................................... 36
!HIGH VOLTAGE Implement wiring after checking that the power supply is OFF. Otherwise, you
may incur electric shock and/or fire. .......................................................... 36
!HIGH VOLTAGE Do not connect wiring to an inverter operate an inverter that is not mounted
according to the instructions given in this manual. ....................................... 36
Otherwise, there is a danger of electric shock and/or injury to personnel.
!WARNING Make sure the input power to the inverter is OFF. If the drive has been pow-
ered, leave it OFF for ten minutes before continuing ................................... 44.

xii
Index to Warnings and Cautions in This Manual 3
Wiring - Cautions for Electrical Practice
!Caution Fasten the screws with the specified fastening torque in the table provided.
Check for any loose screws. Otherwise, there is danger of fire.................... 38
!Caution Be sure that the input voltage matches the inverter specifications;
• Single phase 200V to 240V 50/60Hz (up to 2.2kW) for “AB” model
• Three phase 200V to 240V 50/60Hz (up to 15kW) for “A2” model
• Three phase 380V to 480V 50/60Hz (up to 15kW) for “A4” model ....... 41
!Caution Be sure not to power a three-phase-only inverter with single phase power.
Otherwise, there is the possibility of damage to the inverter and the danger of
fire. 41
!Caution Be sure not to connect an AC power supply to the output terminals. Other-
wise, there is the possibility of damage to the inverter and the danger of injury
and/or fire. ................................................................................................... 42
!Caution Be sure to use a specified type of braking resistor/regenerative braking unit. In
case of a braking resistor, install a thermal relay that monitors the temperature
of the resistor. Not doing so might result in a moderate burn due to the heat
generated in the braking resistor/regenerative braking unit.
Configure a sequence that enables the inverter power to turn off when
unusual overheating is detected in the braking resistor/regenerative braking
unit.
Transporting and Installation
• Do not drop or apply strong impact on the product. Doing so may result in
damaged parts or malfunction.
• Do not hold by the terminal block cover, but hold by the fins during trans-
portation.
• Do not connect any load other than a three-phase inductive motor to the
U, V and W output terminals.
Power Input
Output to Motor
MX2 Inverter

xiii
Index to Warnings and Cautions in This Manual 3
!Caution Remarks for using ground fault interrupter breakers in the main power supply:
Adjustable frequency inverter with integrated CE-filters and shielded
(screened) motor cables have a higher leakage current toward earth GND.
Especially at the moment of switching ON this can cause an inadvertent trip of
ground fault interrupters. Because of the rectifier on the input side of the
inverter there is the possibility to stall the switch-off function through small
amounts of DC current. ............................................................................... 42
Please observe the following:
• Use only short time-invariant and pulse current-sensitive ground fault
interrupters with higher trigger current.
• Other components should be secured with separate ground fault inter-
rupters.
• Ground fault interrupters in the power input wiring of an inverter are not an
absolute protection against electric shock. .......................................... 42
!Caution Be sure to install a fuse in each phase of the main power supply to the
inverter. Otherwise, there is the danger of fire. ........................................... 42
!Caution For motor leads, ground fault interrupter breakers and electromagnetic con-
tactors, be sure to size these components properly (each must have the
capacity for rated current and voltage). Otherwise, there is the danger of fire.
..................................................................................................................... 42
Powerup Test Caution Messages
!Caution The heat sink fins will have a high temperature. Be careful not to touch them.
Otherwise, there is the danger of getting burned. ....................................... 45
!Caution The operation of the inverter can be easily changed from low speed to high
speed. Be sure to check the capability and limitations of the motor and
machine before operating the inverter. Otherwise, there is the danger of injury.
..................................................................................................................... 45
!Caution If you operate a motor at a frequency higher than the inverter standard default
setting (50Hz/60Hz), be sure to check the motor and machine specifications
with the respective manufacturer. Only operate the motor at elevated frequen-
cies after getting their approval. Otherwise, there is the danger of equipment
damage and/or injury. ................................................................................. 45
!Caution Check the following before and during the Powerup test. Otherwise, there is
the danger of equipment damage.
• Is the shorting bar between the [+1] and [+] terminals installed? DO NOT
power or operate the inverter if the jumper is removed.
• Is the direction of the motor rotation correct?
• Did the inverter trip during acceleration or deceleration?
• Were the rpm and frequency meter readings as expected?
•.Were there any abnormal motor vibration or noise? ............................ 46
Warnings for Operations and Monitoring
!WARNING Be sure to turn ON the input power supply only after closing the front case.
While the inverter is energized, be sure not to open the front case. Otherwise,
there is the danger of electric shock. ........................................................ 166

xiv
Index to Warnings and Cautions in This Manual 3
!WARNING Be sure not to operate electrical equipment with wet hands. Otherwise, there
is the danger of electric shock................................................................ … 166
!WARNING While the inverter is energized, be sure not to touch the inverter terminals
even when the motor is stopped. Otherwise, there is the danger of electric
shock. .........................................................................................................166
!WARNING If the retry mode is selected, the motor may suddenly restart after a trip stop.
Be sure to stop the inverter before approaching the machine (be sure to
design the machine so that safety for personnel is secure even if it restarts.)
Otherwise, it may cause injury to personnel. ..............................................166
!WARNING If the power supply is cut OFF for a short period of time, the inverter may
restart operating after the power supply recovers if the Run command is
active. If a restart may pose danger to personnel, so be sure to use a lock-out
circuit so that it will not restart after power recovery. Otherwise, it may cause
injury to personnel. .....................................................................................166
!WARNING The Stop Key is effective only when the stop function is enabled. Be sure to
enable the Stop Key separately from the emergency stop. Otherwise, it may
cause injury to personnel. .......................................................................... 166
!WARNING WARNING: During a trip event, if the alarm reset is applied and the Run com-
mand is present, the inverter will automatically restart. Be sure to apply the
alarm reset only after verifying the Run command is OFF. Otherwise, it may
cause injury to personnel. .......................................................................... 166
!WARNING Be sure not to touch the inside of the energized inverter or to put any conduc-
tive object into it. Otherwise, there is a danger of electric shock and/or fire.
.................................................................................................................... 166
!WARNING If power is turned ON when the Run command is already active, the motor will
automatically start and injury may result. Before turning ON the power, con-
firm that the RUN command is not present. ...............................................166
!WARNING When the Stop key function is disabled, pressing the Stop key does not stop
the inverter, nor will it reset a trip alarm. .................................................... 166
!WARNING Be sure to provide a separate, hard-wired emergency stop switch when the
application warrants it. ................................................................................166
!WARNING If the power is turned ON and the Run command is already active, the motor
starts rotation and is dangerous! Before turning power ON, confirm that the
Run command is not active. ....................................................................... 179
!WARNING After the Reset command is given and the alarm reset occurs, the motor will
restart suddenly if the Run command is already active. Be sure to set the
alarm reset after verifying that the Run command is OFF to prevent injury to
personnel. ..................................................................................................184
Cautions for Operations and Monitoring
!Caution The heat sink fins will have a high temperature. Be careful not to touch them.
Otherwise, there is the danger of getting burned. ....................................... 45

xv
Index to Warnings and Cautions in This Manual 3
!Caution The operation of the inverter can be easily changed from low speed to high
speed. Be sure to check the capability and limitations of the motor and
machine before operating the inverter. Otherwise, it may cause injury to per-
sonnel. ....................................................................................................... 165
!Caution If you operate a motor at a frequency higher than the inverter standard default
setting (50Hz/60Hz), be sure to check the motor and machine specifications
with the respective manufacturer. Only operate the motor at elevated frequen-
cies after getting their approval. Otherwise, there is the danger of equipment
damage. ..................................................................................................... 165
!Caution It is possible to damage the inverter or other devices if your application
exceeds the maximum current or voltage characteristics of a connection point.
.................................................................................................................... 167
!Caution Be sure to turn OFF power to the inverter before changing the short circuit bar
position to change SR/SK. Otherwise, damage to the inverter circuitry may
occur. ......................................................................................................... 175
!Caution Be careful not to turn PID clear ON and reset the integrator sum when the
inverter is in Run mode (output to motor is ON). Otherwise, this could cause
the motor to decelerate rapidly, resulting in a trip.
!HIGH VOLTAGE When set RDY function ON, there will be a voltage appear at motor output ter-
minals U, V and W even if the motor is in stop mode. So never touch the
inverter power terminal even the motor is not running
!Caution CAUTION: The digital outputs (relay and/or open collector) available on the
drive must not be considered as safety related signals. The outputs of the
external safety relay must be used for integration into a safety related control/
command circuit.
!HIGH VOLTAGE Dangerous voltage exists even after the Safe Stop is activated. It does NOT
mean that the main power has been removed.
Warnings and Cautions for Troubleshooting and Maintenance
!WARNING Wait at least ten (10) minutes after turning OFF the input power supply before
performing maintenance or an inspection. Otherwise, there is the danger of
electric shock.
!WARNING Make sure that only qualified personnel will perform maintenance, inspection,
and part replacement. Before starting to work, remove any metallic objects
from your person (wristwatch, bracelet, etc.). Be sure to use tools with insu-
lated handles. Otherwise, there is a danger of electric shock and/or injury to
personnel.
!WARNING Never remove connectors by pulling on its wire leads (wires for cooling fan
and logic P.C.board). Otherwise, there is a danger of fire due to wire breakage
and/or injury to personnel.
!Caution Do not connect the megger to any control terminals such as intelligent I/O,
analog terminals, etc. Doing so could cause damage to the inverter.
!Caution Never test the withstand voltage (HIPOT) on the inverter. The inverter has a
surge protector between the main circuit terminals above and the chassis
ground.

xvi
General Warnings and Cautions 4
!Caution Do not connect the megger to any control circuit terminals such as intelligent
I/O, analog terminals, etc. Doing so could cause damage to the inverter.
!Caution Never test the withstand voltage (HIPOT) on the inverter. The inverter has a
surge protector between the main circuit terminals above and the chassis
ground.
!Caution The life of the capacitor depends on ambient temperatures. Refer to the dia-
gram of product life specified in the manual. When the capacitor stops operat-
ing at the end of the product's life, the inverter must be replaced.
!HIGH VOLTAGE Be careful not to touch wiring or connector terminals when working with the
inverters and taking measurements. Be sure to place the measurement cir-
cuitry components above in an insulated housing before using them
4 General Warnings and Cautions
!WARNING Never modify the unit. Otherwise, there is a danger of electric shock and/or
injury.
!Caution Withstand voltage test and insulation resistance tests (HIPOT) are executed
before the units are shipped, so there is no need to conduct these tests before
operation.
!Caution Do not attach or remove wiring or connectors when power is applied. Also, do
not check signals during operation.
!Caution Be sure to connect the grounding terminal to earth ground.
!Caution When inspecting the unit, be sure to wait ten minutes after turning OFF the
power supply before opening the cover.

xvii
General Warnings and Cautions 4
!Caution Do not stop operation by switching OFF electromagnetic contactors on the
primary or secondary side of the inverter.
When there has been a sudden power failure while an operation instruction is
active, then the unit may restart operation automatically after the power failure
has ended. If there is a possibility that such an occurrence may harm humans,
then install an electromagnetic contactor (Mgo) on the power supply side, so
that the circuit does not allow automatic restarting after the power supply
recovers. If the optional remote operator is used and the retry function has
been selected, this will also cause automatic restarting when a Run command
is active. So, please be careful.
!Caution Do not insert leading power factor capacitors or surge absorbers between the
output terminals of the inverter and motor.
When there has been a sudden power failure while an operation instruction is
active, then the unit may restart operation automatically after the power failure
has ended. If there is a possibility that such an occurrence may harm humans,
then install an electromagnetic contactor (Mgo) on the power supply side, so
that the circuit does not allow automatic restarting after the power supply
recovers. If the optional remote operator is used and the retry function has
been selected, this will also cause automatic restarting when a Run command
is active. So, please be careful.
!Caution MOTOR TERMINAL SURGE VOLTAGE SUPPRESSION FILTER
(For the 400 V CLASS)
In a system using an inverter with the voltage control PWM system, a voltage
surge caused by the cable constants such as the cable length (especially
when the distance between the motor and the inverter is 10m or more) and
cabling method may occur at the motor terminals. A dedicated filter of the
400 V class for suppressing this voltage surge is available. Be sure to install a
filter in this situation.
Power
Input
Ground fault
interrupter
L1, L2, L3
Inverter
U, V, W Motor
PCS
FW
Power
Input
Ground fault
interrupter
L1, L2, L3
Inverter
U, V, W Motor
Surge absorber
Leading power
factor capacitor
GND lug

xviii
General Warnings and Cautions 4
!Caution EFFECTS OF POWER DISTRIBUTION SYSTEM ON INVERTER
In the case below involving a general-purpose inverter, a large peak current
can flow on the power supply side, sometimes destroying the converter mod-
ule:
1. The unbalance factor of the power supply is 3% or higher.
2. the power supply capacity is at least 10 times greater than the inverter ca-
pacity (or the power supply capacity is 500 kVA or more).
3. Abrupt power supply changes are expected, due to conditions such as:
a) Several inverters are interconnected with a short bus.
b) A thyristor converter and an inverter are interconnected with a short
bus.
c) An installed phase advance capacitor opens and closes.
Where these conditions exist or when the connected equipment must be
highly reliable, you MUST install an input side AC-reactor of 3% (at a voltage
drop at rated current) with respect to the supply voltage on the power supply
side. Also, where the effects of an indirect lightening strike are possible, install
a lightening conductor.
!Caution SUPPRESSION FOR NOISE INTERFERENCE FROM INVERTER
The inverter uses many semiconductor switching elements such as transis-
tors and IGBTs. Thus, a radio receiver or measuring instrument located near
the inverter is susceptible to noise interference.
To protect the instruments from erroneous operation due to noise interfer-
ence, they should be used well away from the inverter. It is also effective to
shield the whole inverter structure.
The addition of an EMI filter on the input side of the inverter also reduces the
effect of noise from the commercial power line on external devices.
Note that the external dispersion of noise from the power line can be mini-
mized by connecting an EMI filter on the primary side of the inverter.
!Caution When the EEPROM error E08 occurs, be sure to confirm the setting values
again.
EMI Filter
R1
S1
T1
R2
S2
T2
Inverter
L1
L2
L3
U
V
W
Motor
Motor
EMI Filter Inverter
Remote
Operator
Completely ground the
enclosure panel, metal
screen, etc. with as short
a wire as possible.
noise
Grounded frame
Conduit or shielded cable
-- to be grounded

xix
UL®Cautions, Warnings and Instructions 5
!Caution When using normally closed active state settings (C011 to C017) for exter-
nally commanded Forward or Reverse terminals [FW] or [RV], the inverter
may start automatically when the external system is powered OFF or discon-
nected from the inverter! So do not use normally closed active state settings
for Forward or Reverse terminals [FW] or [RV] unless your system design pro-
tects against unintended motor operation.
!Caution In all the instrumentations in this manual, covers and safety devices are occa-
sionally removed to describe the details. While operating the product, make
sure that the covers and safety devices are placed as they were specified
originally and operate it according to the instruction manual.
!Caution Do not discard the inverter with household waste. Contact an industrial waste
management company in your area who can treat industrial waste without
polluting the environment.
5UL
®Cautions, Warnings and Instructions
Warnings and Cautions for Troubleshooting and Maintenance
The warnings and instructions in this section summarizes the procedures nec-
essary to ensure an inverter installation complies with Underwriters Laborato-
ries guidelines.
!WARNING Use 60/75 C Cu wire only. (for models: MX2-A2001, A2002, A2004, A2007,
AB015, AB022, A4004, A4007, A4015, A4022, A4030)
!WARNING Use 75 C Cu wire only. (for models: MX2-AB001, -AB002, -AB004, -AB007,
-A2015, -A2022, -A2037, -A2055, -A2075, -A2110, -A2150, -A4040, -A4055, -
A4075, -A4110 and -A4150)
!WARNING Suitable for use on a circuit capable of delivering not more than 100,000 rms
Symmetrical Amperes, 240 or 480V maximum.
!WARNING When protected by CC, G, J, or R class Fuses, or when Protected By A Circuit
Breaker Having An Interrupting Rating Not Less Than 100,000 rms Symmetri-
cal Amperes, 240 or 480 Volts Maximum.
!WARNING Install device in pollution degree 2 environment.
!WARNING Maximum Surrounding Air Temperature 50°C
!WARNING Solid state motor overload protection is provided in each model
!WARNING Integral solid state short circuit protection does not provide branch circuit pro-
tection. Branch circuit protection must be provided in accordance with the
National Electric Code and any additional local codes

xx
UL®Cautions, Warnings and Instructions 5
Terminal symbols and Screw size
Inverter Model Screw Size Required
Torque (N-m)
Wire range
MX2-AB001,
MX2-AB002,
MX2-AB004
M4 1.0 AWG16 (1.3mm2)
MX2-AB007 M4 1.4 AWG12 (3.3mm2)
MX2-AB015,
MX2-AB022
M4 1.4 AWG10 (5.3mm2)
MX2-A2001,
MX2-A2002,
MX2-A2004,
MX2-A2007
M4 1.0 AWG16 (1.3mm2)
MX2-A2015 M4 1.4 AWG14 (2.1mm2)
MX2-A2022 M4 1.4 AWG12 (3.3mm2)
MX2-A2037 M4 1.4 AWG10 (5.3mm2)
MX2-A2055,
MX2-A2075
M5 3.0 AWG6 (13mm2)
MX2-A2110 M6 5.9 to 8.8 AWG4 (21mm2)
MX2-A2150 M8 5.9 to 8.8 AWG2 (34mm2)
MX2-A4004,
MX2-A4007,
MX2-A4015
M4 1.4 AWG16 (1.3mm2)
MX2-A4022,
MX2-A4030
M4 1.4 AWG14 (2.1mm2)
MX2-A4040 M4 1.4 AWG12 (3.3mm2)
MX2-A4055,
MX2-A4075
M5 3.0 AWG10 (5.3mm2)
MX2-A4110,
MX2-A4150
M6 5.9 to 8.8 AWG6 (13mm2)