Delta VFD075B43A

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Preface

Thank you for choosing DELTA’s high-performance VFD-B Series. The VFD-B Series is manufactured with

high-quality components and materials and incorporate the latest microprocessor technology available.

This manual is to be used for the installation, parameter setting, troubleshooting, and daily maintenance of the

AC motor drive. To guarantee safe operation of the equipment, read the following safety guidelines before

connecting power to the AC motor drive. Keep this operating manual at hand and distribute to all users for

reference.

To ensure the safety of operators and equipment, only qualified personnel familiar with AC motor drive are to

do installation, start-up and maintenance. Always read this manual thoroughly before using VFD-B series AC

Motor Drive, especially the WARNING, DANGER and CAUTION notes. Failure to comply may result in

personal injury and equipment damage. If you have any questions, please contact your dealer.

PLEASE READ PRIOR TO INSTALLATION FOR SAFETY.

DANGER!

1. AC input power must be disconnected before any wiring to the AC motor drive is made.

2. A charge may still remain in the DC-link capacitors with hazardous voltages, even if the power has been

turned off. To prevent personal injury, please ensure that power has turned off before opening the AC

motor drive and wait ten minutes for the capacitors to discharge to safe voltage levels.

3. Never reassemble internal components or wiring.

4. The AC motor drive may be destroyed beyond repair if incorrect cables are connected to the input/output

terminals. Never connect the AC motor drive output terminals U/T1, V/T2, and W/T3 directly to the AC

mains circuit power supply.

5. Ground the VFD-B using the ground terminal. The grounding method must comply with the laws of the

country where the AC motor drive is to be installed. Refer to the Basic Wiring Diagram.

6. VFD-B series is used only to control variable speed of 3-phase induction motors, NOT for 1-phase motors

or other purpose.

7. VFD-B series shall NOT be used for life support equipment or any life safety situation.

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General

Model	VFD075B43A
Horsepower	10 HP
Output Power	7.5 kW
Frequency Range	0-400 Hz
Protection Class	IP20
Control Method	V/F control, Sensorless Vector Control
Protection Features	Over-voltage, Over-current, Overload, Overheat, Low-voltage, Short circuit
Operating Temperature	-10 to 50 °C
Storage Temperature	-20 ~ 60°C
Humidity	90% RH, non-condensing
Altitude	1000 m
Series	Delta VFD-B Series
Input Voltage	380-480V AC, 3-phase