RAD Data comm ARC-101 Bedienungsanleitung PDF herunterladen (Seite 11)

Rockwell Automation Publication 750-TD001H-EN-P - June 2013 11

PowerFlex 750-Series AC Drives

Design Considerations

Input Voltage Tolerance

Drive Rating

Nominal Line

Voltage

Nominal Motor

Voltage

Drive Full Power

Range

Drive Operating

Range

380…480 380 380 380…528 342…528

400 400 400…528

480 460 460…528

600…690 600 575 575…759 517…759

690 660 660…759

Drive Full Power Range = Nominal Motor Voltage to Drive Rated Voltage + 10%.

Rated current is available across the entire Drive Full Power Range

Drive Operating Range = Lowest Nominal Motor Voltage - 10% to Drive Rated Voltage + 10%. Drive

Output is linearly derated when Actual Line Voltage is less than the

Nominal Motor Voltage

EXAMPLE

Calculate the maximum power of a 5.0 Hp, 460V motor

connected to a 480V rated drive supplied with 342V Actual

Line Voltage input.

• Actual Line Voltage / Nominal Motor Voltage = 74.3%

• 74.3% x 5.0 Hp = 3.7 Hp

• 74.3% x 60 Hz = 44.6 Hz

At 342V Actual Line Voltage, the maximum power the

5.0Hp, 460V motor can produce is 3.7 Hp at 44.6 Hz.

IMPORTANT

For maximum protection of the drive and its internal components, Rockwell Automation prefers the use of fast acting

semiconductor fuses to other methods of circuit protection. This reduces risk of drive damage from power quality events, and

improves machine and process utilization, thus maximizing productivity.

Hp @ Motor (Drive Output)

Actual Line Voltage (Drive Input)

Full Power Range

Drive Operating Range

Nominal Motor Voltage -10%

Nominal Motor Voltage

Derated Power Range

No Drive

Output

Drive Rated Voltage

Drive Rated Voltage +10%

5 Hp

3.7 Hp

Hp @ Motor (Drive Output)

Actual Line Voltage (Drive Input)

342V

460V

No Drive

Output

480V

528V

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