This document is the product manual for FRENIC-MEGA series inverters, which provides detailed information about the inverter's features and operation methods.
This document is the instruction manual for the FRENIC-MEGA series of inverters manufactured by Fuji Electric Systems Co., Ltd. The manual covers safety precautions, application guidelines, installation procedures, and wiring requirements for the device.
The FRENIC-MEGA is designed specifically to drive three-phase induction motors and is not intended for single-phase motors or life-support systems. The manual highlights critical safety warnings regarding electrical shock, fire hazards, and proper grounding to ensure safe operation and prevent equipment failure.
| Motor Type | three-phase induction motor |
|---|---|
| Document Version | INR-S147-1335-E |
The FRENIC-MEGA is designed to drive a three-phase induction motor and should not be used for single-phase motors.
The DC link bus voltage between terminals P(+) and NC) must drop to 425 VDC or below before changing switches or touching the control circuit.
An optional DC reactor must be connected when the power supply transformer capacity exceeds 500 kVA and is 10 times or more the inverter rated capacity.