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Preface
Thank you for purchasing our FRENIC-Multi series of inverters.
This product is designed to drive a three-phase induction motor for fan and pump applications. Read
through this instruction manual and be familiar with proper handling and operation of this product.
Improper handling might result in incorrect operation, a short life, or even a failure of this product as
well as the motor.
Have this manual delivered to the end user of this product. Keep this manual in a safe place until this
product is discarded.
Listed below are the other materials related to the use of the FRENIC-Multi. Read them in
conjunction with this manual as necessary.
• FRENIC-Multi User's Manual
(MEH457)
• RS-485 Communication User's Manual
(MEH448b)
The materials are subject to change without notice. Be sure to obtain the latest editions for use.
Safety precautions
Read this manual thoroughly before proceeding with installation, connections (wiring), operation, or
maintenance and inspection. Ensure you have sound knowledge of the device and familiarize
yourself with all safety information and precautions before proceeding to operate the inverter.
Safety precautions are classified into the following two categories in this manual.
Failure to heed the information indicated by this symbol may
lead to dangerous conditions, possibly resulting in death or
serious bodily injuries.
Failure to heed the information indicated by this symbol may
lead to dangerous conditions, possibly resulting in minor or
light bodily injuries and/or substantial property damage.
Failure to heed the information contained under the CAUTION title can also result in serious
consequences. These safety precautions are of utmost importance and must be observed at all
times.
Application
• FRENIC-Multi is designed to drive a three-phase induction motor. Do not use it for
single-phase motors or for other purposes.
Fire or an accident could occur.
• FRENIC-Multi may not be used for a life-support system or other purposes directly related
to the human safety.
• Though FRENIC-Multi is manufactured under strict quality control, install safety devices
for applications where serious accidents or material losses are foreseen in relation to the
failure of it.
An accident could occur.