Omron M1 Series User Manual

1-1
Overview of Functions
The Multi-function Compact Inverter (3G3M1 Series) provides a variety of functions such as PM motor
control and simple position control. It is also designed for open field networks to extend application us-
ability.
In addition, the 3G3M1 Series complies as standard with both the EC Directives and UL/cUL Stand-
ards. You can use this product as a world standard inverter.
1-1-1
Features of 3G3M1 Series Inverter
The 3G3M1 Series Inverter has the following features.
Enhanced Application Support
Although this inverter is compact, it provides high functionality for enhanced application support and
addresses diverse needs with optimal performance.

PM motors
In addition to conventional induction motors, this inverter provides the PM motor mode that sup-
ports highly efficient PM motors, which results in highly efficient control.
This is combined with the OMRON’s unique auto-tuning function and magnetic pole position esti-
mation function that estimates the magnetic pole position of a PM motor during startup to enable its
smooth start.
This control is suitable for applications with reduced torque characteristics (which do not require
torque at low speeds) such as fans and pumps.

Implementation of the dual rating function
This inverter has the dual rating function that consists of the heavy load mode and the light load
mode.
This enables the efficient utilization of the inverter depending on your application.
• Heavy load mode (HHD/HD)
The heavy load mode is used for a transfer machine, elevator, or other device that temporarily
requires a torque exceeding the rated torque. This mode enables high torque control similar to
that achieved with the previous product.
The current overload capacity is 1 minute at 150% of the rated current and 0.5 seconds at 200%
of the rated current.
• Light load mode (HND/ND)
The light load mode is used for a fan, pump, or other device that operates at the rated motor tor-
que or lower.
Setting the light load mode causes the rated current of the inverter to increase, enabling the in-
verter to drive a motor whose capacity is one size larger.
However, check when selecting an inverter because this also decreases the current overload ca-
pacity to 120% of the rated current for one minute.
1 Overview
1-2
M1 Series Standard Type User's Manual (I669)

Omron M1 Series Specifications

General

Brand	Omron
Model	M1 Series
Category	Inverter
Language	English