12
Chapter 2
Product Overview
2.1.
Features
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Equipped with the functions designed specially for power supply
Connecting VF66R to an inverter causes the regenerative energy from the motor to return to the power supply
efficiently, which results in energy saving. Also, the power supply harmonics generated from an inverter can
be suppressed significantly.
VF66R provides the PWM sine wave mode and 120-degree conduction mode.
The 120-degree conduction mode enables regenerative operation without high-speed switching since it energizes
in turn according to the phase of three-phase power supply voltage so that the energization period of each phase
becomes 120 degrees.
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Reduced maintenance cost
Long-life parts are used for components which require replacement.
・
Main circuit capacitor: About ten years (life expectancy in design)
・
Cooling fan: About five years (life expectancy in design)
You can check the replacement timing with a cumulative operation timer.
2.2.
Configuration
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Converter main unit
・
Front cover
This is a front cover of the converter. For how to remove it, refer to {3.2.1. How to Open Front Cover}.
・
Cooling fan
This is a fan motor for cooling. For how to replace it, refer to {7.3. How to Replace Cooling Fan}.
・
Console
It is used for operation from the converter main unit.
It consists of a seven-segment display, a unit LED, a status display LED, and operation keys.
For details, refer to {4.1.1. Explanation of Display and Operation Keys on Console}.
Console
Cooling fan
Front cover