Customised to your machine
Model: RX
200 V Class Three-Phase Input 0.4 to 55 kW
400 V Class Three-Phase Input 0.4 to 132 kW
USER’S MANUAL
Introduction
Thank you for choosing the general-purpose Inverter RX Series. This User's Manual (hereinafter
called "this manual") describes the parameter setting methods required for installation/wiring and
operation of the RX model, as well as troubleshooting and inspection methods.
z This manual should be delivered to the actual end user of the product.
z After reading this manual, keep it handy for future reference.
z This manual describes the specifications and functions of the product as well as the relations
between them. You should assume that anything not described in this manual is not possible with
the product.
z Intended readers
This manual is intended for:
Those with knowledge of the workings of electricity (qualified electric engineers or the equivalent),
and also in charge of:
• Introducing the control equipment
• Designing the control system
• Installing and/or connecting the control equipment
• Field management
Introduction
1
Read and Understand this Manual
Read and Understand this Manual
Please read and understand this manual before using the product. Please consult your OMRON representative
if you have any questions or comments.
Warranty and Limitations of Liability
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
NON-INFRINGEMENT, 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 CONSEQUENTIAL
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 ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
2
Read and Understand this Manual
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations 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 application 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 products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions
or uses not described in this manual.
• 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.
• 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.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any
consequence thereof.
3
Read and Understand this Manual
Disclaimers
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 establish
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 purposes, even when
tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining 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 Limitations 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 proofreading errors, or omissions.
4
Safety Precautions
WARNING
CAUTION
WARNING
Safety Precautions
Indications and Meanings of Safety Information
In this user's manual, the following precautions and signal words are used to provide information to ensure the
safe use of the RX Inverter.
The information provided here is vital to safety. Strictly observe the precautions provided.
Meanings of Signal Words
Indicates an imminently hazardous situation which, if not avoided,
is likely to result in serious injury or may result in death. Additionally
there may be severe property damage.
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury or in property damage.
Alert Symbols in this Document
Turn off the power supply and implement wiring correctly. Not doing so may result in a serious injury
due to an electric shock.
Wiring work must be carried out only by qualified personnel. Not doing so may result in a serious
injury due to an electric shock.
Do not change wiring and slide switches (SW1), put on or take off Digital Operator and optional
devices, replace cooling fans while the input power is being supplied. Doing so may result in a
serious injury due to an electric shock.
Be sure to ground the unit. Not doing so may result in a serious injury due to an electric shock or
fire.
(200-V class: type-D grounding, 400-V class: type-C grounding)
Do not remove the terminal block cover during the power supply and 10 minutes after the power
shutoff.
Doing so may result in a serious injury due to an electric shock.
Do not operate the Digital Operator or switches with wet hands. Doing so may result in a serious
injury due to an electric shock.
Inspection of the Inverter must be conducted after the power supply has been turned off. Not doing
so may result in a serious injury due to an electric shock.
The main power supply is not necessarily shut off even if the emergency shutoff function is
activated.
5
Safety Precautions
CAUTION
Do not connect resistors to the terminals (PD/+1, P/+, N/-) directly. Doing so might result in a smallscale fire, heat generation or damage to the unit.
Install a stop motion device to ensure safety. Not doing so might result in a minor injury. (A holding
brake is not a stop motion device designed to ensure safety.)
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.
The Inverter has high voltage parts inside which, if short-circuited, might cause damage to itself or
other property. Place covers on the openings or take other precautions to make sure that no metal
objects such as cutting bits or lead wire scraps go inside when installing and wiring.
Do not touch the Inverter fins, braking resistors and the motor, which become too hot during the
power supply and for some time after the power shutoff. Doing so may result in a burn.
Take safety precautions such as setting up a molded-case circuit breaker (MCCB) that matches
the Inverter capacity on the power supply side. Not doing so might result in damage to property due
to the short circuit of the load.
Do not dismantle, repair or modify this product.
Doing so may result in an injury.
6
Precautions for Safe Use
Precautions for Safe Use
Installation and Storage
Do not store or use the product in the following places.
•Locations subject to direct sunlight.
•Locations subject to ambient temperature exceeding the specifications.
•Locations subject to relative humidity exceeding the specifications.
•Locations subject to condensation due to severe temperature fluctuations.
•Locations subject to corrosive or flammable gases.
•Locations subject to exposure to combustibles.
•Locations subject to dust (especially iron dust) or salts.
•Locations subject to exposure to water, oil, or chemicals.
•Locations subject to shock or vibration.
Transporting, Installation, and Wiring
•Do not drop or apply strong impact on the product. Doing so may result in damaged parts or malfunction.
•Do not hold by the front cover and terminal block cover, but hold by the fins during transportation.
•Do not connect an AC power supply voltage to the control input/output terminals. Doing so may result in
damage to the product.
•Be sure to tighten the screws on the terminal block securely.
Wiring work must be done after installing the unit body.
•Do not connect any load other than a three-phase inductive motor to the U, V, and W output terminals.
•Take sufficient shielding measures when using the product in the following locations. Not doing so may
result in damage to the product.
Locations subject to static electricity or other forms of noise.
Locations subject to strong magnetic fields.
Locations close to power lines.
Operation and Adjustment
•Be sure to confirm the permissible range of motors and machines before operation because the Inverter
speed can be changed easily from low to high.
•Provide a separate holding brake if necessary.
Maintenance and Inspection
•Be sure to confirm safety before conducting maintenance, inspection or parts replacement.
7
Precautions for Correct Use
Precautions for Correct Use
Installation
•Mount the product vertically on a wall with the product's longer sides upright.
The material of the wall has to be noninflammable such as a metal plate.
Main Circuit Power Supply
•Confirm that the rated input voltage of the Inverter is the same as AC power supply voltage.
Error Retry Function
•Do not come close to the machine when using the error retry function because the machine may abruptly
start when stopped by an alarm.
•Be sure to confirm the RUN signal is turned off before resetting the alarm because the machine may
abruptly start.
Non-Stop Function at Momentary Power Interruption
•Do not come close to the machine when selecting restart in the non-stop function at momentary power
interruption selection (b050) because the machine may abruptly start after the power is turned on.
Operation Stop Command
•Provide a separate emergency stop switch because the STOP key on the Digital Operator is valid only when
function settings are performed.
•When checking a signal during the power supply and the voltage is erroneously applied to the control input
terminals, the motor may start abruptly. Be sure to confirm safety before checking a signal.
Product Disposal
•Comply with the local ordinance and regulations when disposing of the product.
8
Warning Labels
Warning labels are located on the Inverter as shown in the following illustration.
Be sure to follow the instructions.
Precautions for Correct Use
Warning Description
9
Checking Before Unpacking
RX- A2055-EF
Max. applicable motor capacity
004
007
015
022
037
055
075
110
150
185
0.4 kW
0.75 kW
1.5 kW
2.2 kW
3.7 kW
5.5 kW
7.5 kW
11 kW
15 kW
18.5 kW
Voltage class
243-phase 200 V AC (200-V class)
3-phase 400 V AC (400-V class)
Enclosure rating
A
Panel-mounting (IP20 min.) or closed
wall-mounting models
On delivery, be sure to check that the delivered product is the Inverter RX model that you ordered.
Should you find any problems with the product, immediately contact your nearest local sales
representative or OMRON sales office.
zChecking the Nameplate
Inverter model
Input specifications
Output specifications
zChecking the Model
Checking the Accessories
Note that this manual is the only accessory included with the RX model.
Mounting screws and other necessary parts must be provided by the user.
10
Revision History
Revision History
A manual revision code appears as a suffix to the catalog number located at the
lower left of the front and back covers.
Cat. No. I560-E2-03
Revision code
Revision codeRevision dateChanges and revision pages
01April 2009First printing
11
About This Manual
About This Manual
This User's Manual is compiled chapter by chapter for user's convenience as follows.
Understanding the following configuration ensures more effective use of the product.
Chapter 1 OverviewDescribes features and names of parts.
1-2Appearance and Names of Parts .................... 1-4
1-1 Functions
1Overview
1
1-1Functions
RX Inverter Models
Overview
3-phase 200 V AC
Rated voltageEnclosure ratingMax. applicable motor capacityModel
0.4 kWRX-A2004
0.75 kWRX-A2007
1.5 kWRX-A2015
2.2 kWRX-A2022
3.7 kWRX-A2037
5.5 kWRX-A2055
7.5 kWRX-A2075
11 kWRX-A2110
15 kWRX-A2150
18.5 kWRX-A2185
22 kWRX-A2220
30 kWRX-A2300
3-phase 400 V AC
IP20
IP00
37 kWRX-A2370
45 kWRX-A2450
55 kWRX-A2550
0.4 kWRX-A4004
0.75 kWRX-A4007
1.5 kWRX-A4015
2.2 kWRX-A4022
4.0 kWRX-A4040
5.5 kWRX-A4055
7.5 kWRX-A4075
11 kWRX-A4110
15 kWRX-A4150
18.5 kWRX-A4185
22 kWRX-A4220
30 kWRX-A4300
37 kWRX-A4370
45 kWRX-A4450
55 kWRX-A4550
75 kWRX-B4750
90 kWRX-B4900
110 kWRX-B411K
132 kWRX-B413K
1-1
1-1 Functions
International Standards Models (EC Directives and UL/cUL Standards)
The RX Inverter meets the EC Directives and UL/cUL standard requirements for worldwide use.
ClassificationApplicable standard
EC DirectivesEMC DirectiveEN61800-3: 2004
Low-voltage DirectiveEN61800-5-1: 2003
UL/cUL StandardsUL508C
Human-/Environment-friendly, High-performance, General-purpose
Inverters Suitable for Various Advanced Applications
High Performance
High Starting Torque
With the vector control and auto-tuning functions, the RX Series has achieved high starting torque
in excess of 200% at 0.3 Hz.
1
Overview
Trip Suppression
This Inverter features two trip suppression functions: "Overcurrent trip suppression function" to
suppress overcurrent trip during acceleration, and "Overvoltage suppression function during
deceleration" to suppress overvoltage trip during deceleration. Therefore, the RX Series provides
tough operational capabilities regardless of the severe time setting of acceleration and deceleration.
Various Applications
Sensor-less Vector Control at 0 Hz
The RX Series provides sensor-less vector control, which is useful for up/down applications. It can
provide a high torque of 150%, even at a speed reference of 0 Hz (150% torque is available when
the Inverter capacity is increased by one rank). This function contributes to simplification of control
programs and extension of the service life of the brake.
Emergency Shutoff Function
By switching the dedicated switch (SW1) this function enables you to change the multi-function
input (input 3) to the emergency shutoff input. You can directly turn off a motor control power module
without operating the software. This function simplifies construction of safety applications.
Built-in Braking Circuit (up to 22 kW)
The Inverter models with 22 kW or lower capacity incorporate a braking transistor, enabling spacesaving configuration for applications that need rapid acceleration and stop.
Restart Speed Search Function
For a free-running motor (e.g. a fan motor), this function checks the direction of rotation and
frequency, enabling smooth restart of the motor.
High-torque Multi-operation
The RX Series enables balanced torque control for the whole system, in proportion to multiple motor
loads.
Deceleration Stop During Power Failure
During a power failure or momentary power interruption, the RX Series can decelerate and stop a
motor by using the motor braking energy.
1-2
1-1 Functions
Human-/Environment-friendly Features
1
Overview
More Simplified Parameter Settings and View
•Only parameters that have been changed from the default settings can be viewed.
•With the user setting function, only 12 parameters for frequent use can be viewed.
Compliance With Safety Standards
The RX Series meets the requirements of the CE and UL/cUL and complies with various standards.
The RoHS Directive
The standard model meets the requirements of the RoHS Directive.
Easily Meets the Requirements Specified by the Ministry of Land, Infrastructure and
Transport of Japan
The RX Series incorporates a zero-phase reactor (radio noise filter) as a standard specification.
When an optional DC reactor is added, the RX Series meets the requirements specified by the Ministry of Land, Infrastructure and Transport of Japan.
1-3
1-2 Appearance and Names of Parts
1-2Appearance and Names of Parts
When the product is unpacked, it appears as below. (Example of RX-A2150/A4150 to A2220/
A4220)
Front cover
Digital Operator
Spacer cover
Terminal block cover
Open the terminal block cover and you can connect cables to the main circuit terminal block, as well
as the control circuit terminal block.
Also, open the front cover and you can mount the optional board.
Turn off the power supply and implement wiring correctly. Not doing so may result in a serious injury
due to an electric shock.
Wiring work must be carried out only by qualified personnel. Not doing so may result in a serious
injury due to an electric shock.
Do not change wiring and slide switches (SW1), put on or take off Digital Operator and optional
devices, replace cooling fans while the input power is being supplied. Doing so may result in a
serious injury due to an electric shock.
Be sure to ground the unit. Not doing so may result in a serious injury due to an electric shock or fire.
(200-V class: type-D grounding, 400-V class: type-C grounding)
Do not connect resistors to the terminals (PD/+1, P/+, N/-) directly. Doing so might result in a smallscale fire, heat generation or damage to the unit.
Install a stop motion device to ensure safety. Not doing so might result in a minor injury. (A holding
brake is not a stop motion device designed to ensure safety.)
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.
The Inverter has high voltage parts inside which, if short-circuited, might cause damage to itself or
other property. Place covers on the openings or take other precautions to make sure that no metal
objects such as cutting bits or lead wire scraps go inside when installing and wiring.
2-1
2-1 Installation
Safety Information
Installation and Storage
Do not store or use the product in the following places.
•Locations subject to direct sunlight.
•Locations subject to ambient temperature exceeding the specifications.
•Locations subject to relative humidity exceeding the specifications.
•Locations subject to condensation due to severe temperature fluctuations.
•Locations subject to corrosive or flammable gases.
•Locations subject to exposure to combustibles.
•Locations subject to dust (especially iron dust) or salts.
•Locations subject to exposure to water, oil, or chemicals.
•Locations subject to shock or vibration.
Transporting, Installation, and Wiring
•Do not drop or apply strong impact on the product. Doing so may result in damaged parts or malfunction.
•Do not hold by the front cover and terminal block cover, but hold by the fins during transportation.
•Do not connect an AC power supply voltage to the control input/output terminals. Doing so may result in
damage to the product.
•Be sure to tighten the screws on the terminal block securely.
Wiring work must be done after installing the unit body.
•Do not connect any load other than a three-phase inductive motor to the U, V, and W output terminals.
•Take sufficient shielding measures when using the product in the following locations. Not doing so may
result in damage to the product.
Locations subject to static electricity or other forms of noise.
Locations subject to strong magnetic fields.
Locations close to power lines.
2
Design
Installation
•Install the Inverter vertically on the wall.
Install the Inverter on a nonflammable wall surface material, like metal.
Position for installing a screw
Main Circuit Power Supply
•Confirm that the rated input voltage of the Inverter matches the AC power supply voltage.
Precautions for Use
2-2
2-1 Installation
Ventilation fan
Ventilation fan
InverterInverter
(Correct example)(Incorrect example)
Installation Environment
•Increased ambient temperatures will shorten the life of the Inverter.
•Keep the Inverter away from heating elements (such as a braking resistor, DC reactor, etc.).
If the Inverter is installed in an enclosure, keep the ambient temperature within the range of the
specifications, taking dimensions and ventilation into consideration.
2
Design
*1
Inverter
5 cm min.5 cm min.
*2
•When several RX models are installed in an enclosure and a ventilation fan is mounted in the
enclosure, be careful about the layout of the Inverters and the air intake apertures.
Depending on the internal layout of the panel, the Inverter's cooling effect may deteriorate,
resulting in an increase in ambient temperature.
Also, use thorough caution in making sure that the Inverter's ambient temperature is within the
allowable operating temperature range.
Airflow
Inverter
Save enough space to prevent the upper
and lower wiring ducts from blocking
cooling airflow.
*1 10 cm min.
*2 10 cm min.
Note that replacing the smoothing capacitor
Wall
requires 22 cm or more.
•Before installing the Inverter, place a cover over all the ventilation openings to shield them from
foreign objects.
After completing the installation process, be sure to remove the covers from the Inverter before
operation.
•Below is the heat radiation according to the Inverter capacity.