Danfoss VLT Midi Drive FC 280 Instruction Manual

Area Component Functions
1 Line power input
•
AC line power supply to the
adjustable frequency drive.
2 Rectier
•
The rectier bridge converts
the AC input to DC current to
supply inverter power.
3 DC bus
•
Intermediate DC bus circuit
handles the DC current.
4 DC reactor
•
Filters the intermediate DC
circuit current.
•
Provides line transient
protection.
•
Reduces the root mean square
(RMS) current.
•
Raises the power factor
reected back to the line.
•
Reduces 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.
7 Output to motor
•
Regulated 3-phase output
power to the motor.
8 Control circuitry
•
Input power, internal
processing, output and motor
current are monitored to
provide ecient operation
and control.
•
User interface and external
commands are monitored and
performed.
•
Status output and control can
be provided.
Table 1.2 Legend to Figure 1.1
1.4.3 Enclosure Sizes and Power Ratings
For enclosure sizes and power ratings of the adjustable
frequency drives, refer to chapter 9.9 Enclosure Sizes, Power
Ratings and Dimensions.
1.4.4 Safe Torque O (STO)
The VLT
®
Midi Drive FC 280 adjustable frequency drive
supports Safe Torque O (STO). See chapter 9.9 Enclosure
Sizes, Power Ratings and Dimensions for details about the
installation, commissioning, maintenance and technical
data of STO.
1.5 Approvals and Certications
For compliance with the European Agreement concerning
International Carriage of Dangerous Goods by Inland
Waterways (ADN), refer to ADN-compliant Installation in the
VLT
®
Midi Drive FC 280 Design Guide.
Applied standards and compliance for STO
Use of STO on terminals 37 and 38 requires that the user
satises all provisions for safety including relevant laws,
regulations and guidelines. The integrated STO function
complies with the following standards:
•
IEC/EN 61508: 2010 SIL 2
•
IEC/EN 61800-5-2: 2007 SIL2
•
IEC/EN 62061: 2012 SILCL of SIL2
•
EN ISO 13849-1: 2008 Category 3 PL d
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.
Introduction
VLT
®
Midi Drive FC 280
4 Danfoss A/S © 11/2015 All rights reserved. MG07A122
11

Danfoss VLT Midi Drive FC 280 Specifications

General

Brand	Danfoss
Model	VLT Midi Drive FC 280
Category	DC Drives
Language	English