Toshiba TOSVERT VF-A7 User Manual

E6581172①
TOSVERT VF-A7/P7
The light-load high-speed operation Manual
This manual is intended only to describe the typical operation and application of the
product. The technical information contained in this manual does not guarantee the
intellectual proprietary rights or other rights of, or grant a license to, the Toshiba
Schneider Inverter Corporation or third parties, for the use of the technical information or
of the product.
© Toshiba Schneider Inverter Corporation 2003
All rights reserved.

Toshiba TOSVERT VF-A7 Specifications

General

Series	VF-A7
Frequency Range	50/60 Hz
Output Frequency	0-400 Hz
Output Voltage	Matches Input Voltage
Control Method	V/f control, Sensorless vector control
Communication Options	RS-485, Modbus RTU
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in, Optional external
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat, Short circuit
Cooling Method	Forced air cooling
Humidity	95% (non-condensing)
Altitude	Up to 1000m (above sea level)
Enclosure Rating	IP20

Summary

Introduction

Function

Related parameter

Operation

Mode description

Describes the five modes for light-load high-speed operation selection via parameter F330.

Description of F330=1 or 6 (user interface) operation

Explains user interface operation using light-load detection signals for preset-speed commands.

Operation with F330=2, 4, 7 or 9 (automatic mode)

Details automatic light-load high-speed operation modes, including continuous and enabled-terminal effective types.

Operation with F330=3, 5, 8 or 10 (preset-speed mode)

Covers preset-speed mode operations for light-load high-speed function based on F330 settings.

Input/output terminal function

Input terminal function (light-load high-speed operation enabling signals 120 and 121)

Details the function of input terminals for enabling/disabling light-load high-speed operation.

Output terminal function (load detection outputs 106~109)

Explains output terminal functions for light-load and heavy-load detection signals based on F330 settings.

Light-load detection mode

Detailed description of light-load high-speed operation