Frame Sizes And Power Ratings - Danfoss VLT FC 322 Instruction Manual

Introduction VLT® Automation VT Drive FC 322 D-Frame Instruction Manual
Area Title Functions
•
4 DC reactors Filter the intermediate DC
circuit voltage
•
Prove line transient protection
•
Reduce RMS current
•
Raise the power factor
reflected back to the line
•
Reduce harmonics on the AC
input
•
5 Capacitor bank Stores the DC power
•
Provides ride-through
protection for short power
losses
•
6 Inverter Converts the DC into a
controlled PWM AC waveform
for a controlled variable
output to the motor

1.6 Frame Sizes and Power Ratings

kW rated frequency converters
kW High Overload 75 90
kW Normal Overload 90 110
400 V D3h
500 V
525 V D4h D3h
690 V D3h
Table 1.3
Horsepower rated frequency converters
HP High 100 125 150
Overload
HP Normal 125 150 200
Overload
460 V D3h D3h
575 V D3h D3h D3h
Table 1.4
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Area Title Functions
•
7 Output to motor Regulated three-phase output
power to the motor
•
8 Control circuitry Input power, internal
processing, output, and motor
current are monitored to
provide efficient operation
and control
•
User interface and external
commands are monitored and
performed
•
Status output and control can
be provided
Table 1.2 Frequency Converter Internal Components
110 132 160 200 250 315 315
132 160 200 250 315 355 400
D3h D3h D4h D4h D4h
D3h D3h D3h D4h D4h D4h
D3h D4h D4h D4h D4h
D3h D3h D4h D4h D4h
200 250 300 350 350
250 300 350 400 450
D3h D4h D4h D4h
D4h D4h D4h D4h
1 1
1-3