Approvals And Certifications; Disposal - Danfoss VLT AutomationDrive FC 301 Operating Instructions Manual

Introduction
1.4.3 Block Diagram of the Frequency
Converter
Illustration 1.3 is a block diagram of the internal
components of the frequency converter. See Table 1.2 for
their functions.
Area Title
3-phase AC mains supply to the
1 Mains input
frequency converter.
The rectifier bridge converts the
2 Rectifier AC input to DC current to supply
inverter power.
Intermediate DC-bus circuit
3 DC bus
handles the DC current.
•
•
•
4 DC reactors
•
•
•
•
5 Capacitor bank
The inverter converts the DC into
a controlled PWM AC waveform
6 Inverter
for a controlled variable output to
the motor.
Regulated 3-phase output power
7 Output to motor
to the motor.
MG33AQ02
Operating Instructions
Functions
Filter the intermediate DC
circuit voltage.
Provide mains transient
protection.
Reduce RMS current.
Raise the power factor
reflected back to the line.
Reduce harmonics on the AC
input.
Stores the DC power.
Provides ride-through
protection for short power
losses.
Danfoss A/S © 07/2015 All rights reserved.
Area Title
•
8 Control circuitry
•
•
Illustration 1.3 Frequency Converter Block Diagram
1.4.4 Enclosure Sizes and Power Ratings
For enclosure sizes and power ratings of the frequency
converters, refer to chapter 8.9 Power Ratings, Weight, and
Dimensions.

1.5 Approvals and Certifications

More approvals and certifications are available. Contact the
local Danfoss partner. Frequency converters of enclosure
size T7 (525–690 V) are UL certified for only 525–600 V.
The frequency converter complies with UL 508C thermal
memory retention requirements. For more information,
refer to the section Motor Thermal Protection in the
product-specific design guide.
For compliance with the European Agreement concerning
International Carriage of Dangerous Goods by Inland
Waterways (ADN), refer to ADN-compliant Installation in the
product-specific design guide.

1.6 Disposal

Do not dispose of equipment containing
electrical components together with
domestic waste.
Collect it separately in accordance with
local and currently valid legislation.
Functions
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.
7
1 1