Applying
Drives to Single-phase
Input Application
574
Figure-2 Typical Single-Phase Configuration
12.2 Power(HP), Input Current and Output Current
When using a three-phase VFD with single-phase input, derating the drive‘s output current
and horsepower will be necessary because of the increase in DC bus ripple voltage and
current.
In addition, the input current through the remaining two phases on the diode bridge
converter will approximately double, creating another derating consideration for the VFD.
Input current harmonic distortion will increase beyond that with a three-phase supply
making the overall input power factor low. Input current distortion over 100% is likely under
single-phase conditions without a reactor.
Therefore, the reactor is always required. When using a motor that is selected by the three-
phase drive rating criteria when using single-phase input, it may result in poor performance,
premature drive failure. The selected drive of single-phase current ratings must meet or
exceed the motor current rating.
Содержание LSLV0055H100-4COFN
Страница 14: ......
Страница 18: ...Preparing the Installation 4 37 90 kW 3 Phase ...
Страница 27: ...Preparing the Installation 13 ...
Страница 47: ...33 Installing the Inverter ...
Страница 48: ...Installing the Inverter 34 Input and Output Control Terminal Block Wiring Diagram ...
Страница 61: ...47 Installing the Inverter ...
Страница 71: ...Learning to Perform Basic Operations 57 ...
Страница 88: ...Learning to Perform Basic Operations 74 ...
Страница 103: ...89 Learning Basic Features Code Description V1 Quantizing ...
Страница 120: ...Learning Basic Features 106 Grou p Cod e Name LCD Display Parameter Setting Setting Range Unit Prev ...
Страница 129: ...115 Learning Basic Features ...
Страница 140: ...Learning Basic Features 126 ...
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Страница 171: ...157 Learning Advanced Features Deceleration dwell operation ...
Страница 183: ...169 Learning Advanced Features ...
Страница 184: ...Learning Advanced Features 170 PID Command Block ...
Страница 185: ...171 Learning Advanced Features PID Feedback Block ...
Страница 186: ...Learning Advanced Features 172 PID Output Block ...
Страница 187: ...173 Learning Advanced Features PID Output Mode Block ...
Страница 197: ...183 Learning Advanced Features ...
Страница 201: ...187 Learning Advanced Features Code Description 100 EPID1 Control block ...
Страница 202: ...Learning Advanced Features 188 EPID2 Control block ...
Страница 237: ...223 Learning Advanced Features Time Period Schedule AP3 38 Except3 Day 01 01 ...
Страница 244: ...Learning Advanced Features 230 ...
Страница 259: ...245 Learning Advanced Features Code Description Code Description Volt ...
Страница 362: ...Learning Protection Features 348 ...
Страница 415: ...401 RS 485 Communication Features Item Standards Parity check None ...
Страница 524: ...Table of Functions 510 ...
Страница 533: ...Table of Functions 519 ...
Страница 547: ...533 Troubleshooting ...
Страница 564: ...Technical Specification 550 11 3 External Dimensions IP 20 Type 0 75 30 kW 3 phase 37 90 kW 3 phase ...
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