1.1 Features
1-7
Chapter 1 BEFORE USE
Model variation that optimally satisfies customer needs
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Rich model variation
1. Basic type
Suitable for the equipment that uses a peripheral device to noise or harmonics.
2. EMC filter built-in type
This type has a built-in EMC filter and is compliant with European EMC Directives.
Category C3 (2nd Env) IEC/EN61800-3:2004 compliant
* Use of EMC filter will increase the leakage current.
3. DC reactor built-in type
This type has a built-in DC reactor to suppress harmonics.
This is advantageous in terms of installation space when power factor is to be corrected or harmonic
components are to be suppressed.
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Inverters supporting synchronous motors
1. Highly-efficient operation for energy saving
Driving a synchronous motor(s) with the FRENIC-MEGA equipped with our distinctive energy saving
control provides higher energy saving effect than conventional inverter operations of induction motors.
2. Compact, light-weight body for space saving
Using advanced, optimum magnetic field analysis technology, thermal analysis technology, and applied
analysis technology has attained more compact, light-weight body.
3. General-purpose inverter (supporting synchronous motors) providing high-performance, multi-function
operations
(1) Vector control without speed sensor, vector control with speed sensor
(2) Offline tuning
(3) Acceleration characteristics (vector control without speed sensor):
Before startup, the FRENIC-MEGA detects the position of
a magnetic pole for smooth, rapid acceleration.
(4) Impact load characteristics (vector control without speed sensor):
The FRENIC-MEGA maintains stable motor speed even
under 120% of impact load.
(5) Restart after momentary power failure: After a momentary power failure occurs, the
FRENIC-MEGA automatically searches for the idling motor
speed and starts the motor smoothly without stopping it.
4. Environmental considerations
The FRENIC-MEGA approximately doubles the bearing life of the motor driven (compared with our
conventional induction motors). The designed lives of the various consumable parts inside the
FRENIC-MEGA have been extended to 10 years, The FRENIC-MEGA is compliant with RoHS Directives
and realizes very low noise operation.
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