Sine-Wave Filters; High Power Options; Frame Size F Panel Options - Danfoss FC 300 Design Manual

FC 300 Design Guide

10.14 Sine-wave Filters

When a motor is controlled by a frequency converter, resonance noise will be heard from the motor. This noise, which is the result of the design of the
motor, arises every time an inverter switch in the frequency converter is activated. The frequency of the resonance noise thus corresponds to the switching
frequency of the frequency converter.
For the AutomationDrive FC 300, Danfoss can supply a Sine-wave filter to dampen the acoustic motor noise.
The filter reduces the ramp-up time of the voltage, the peak load voltage U
voltage become almost sinusoidal. Consequently, the acoustic motor noise is reduced to a minimum.
The ripple current in the Sine-wave Filter coils, will also cause some noise. Solve the problem by integrating the filter in a cabinet or similar.

10.15 High Power Options

Ordering numbers for High Power options can be found in the
Order
section. The kits are described in the FC 300 High Power Operating
MG33UXYY
Instructions, .

10.15.1 Frame Size F Panel Options

Space Heaters and Thermostat
Mounted on the cabinet interior of frame size F frequency converters, space heaters controlled via automatic thermostat help control humidity inside the
enclosure, extending the lifetime of drive components in damp environments. The thermostat default settings turn on the heaters at 10° C (50° F) and
turn them off at 15.6° C (60° F).
Cabinet Light with Power Outlet
A light mounted on the cabinet interior of frame size F frequency converters increase visibility during servicing and maintenance. The housing the light
includes a power outlet for temporarily powering tools or other devices, available in two voltages:
• 230V, 50Hz, 2.5A, CE/ENEC
• 120V, 60Hz, 5A, UL/cUL
Transformer Tap Setup
If the Cabinet Light & Outlet and/or the Space Heaters & Thermostat are installed Transformer T1 requires it taps to be set to the proper input voltage.
A 380-480/ 500 V380-480 V drive will initially be set to the 525 V tap and a 525-690 V drive will be set to the 690 V tap to insure no over-voltage of
secondary equipment occurs if the tap is not changed prior to power being applied. See the table below to set the proper tap at terminal T1 located in
the rectifier cabinet. For location in the drive, see illustration of rectifier in the
Input Voltage Range
380V-440V
441V-490V
491V-550V
551V-625V
626V-660V
661V-690V
NAMUR Terminals
NAMUR is an international association of automation technology users in the process industries, primarily chemical and pharmaceutical industries in
Germany. Selection of this option provides terminals organized and labeled to the specifications of the NAMUR standard for drive input and output
terminals. This requires MCB 112 PTC Thermistor Card and MCB 113 Extended Relay Card.
RCD (Residual Current Device)
Uses the core balance method to monitor ground fault currents in grounded and high-resistance grounded systems (TN and TT systems in IEC termi-
nology). There is a pre-warning (50% of main alarm set-point) and a main alarm set-point. Associated with each set-point is an SPDT alarm relay for
external use. Requires an external "window-type" current transformer (supplied and installed by customer).
• Integrated into the drive's safe-stop circuit
How to
Tap to Select
400V
460V
525V
575V
660V
690V
MG.33.BC.02 - VLT ® is a registered Danfoss trademark
and the ripple current ΔI to the motor, which means that current and
PEAK
Power Connections
section.
10 Options and Accessories
10
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