  Power OptionsDanfoss VLT Drives offers a range of external power options for use together with Danfoss drives in critical networks or applications. To get more information please expand the product block by pressing on image or product title. To get detailed information about specific product you can download Technical datasheet file by clicking corresponding link. VLT Advanced Active FilterAn active shunt filter for harmonics and reactive current mitigation. The filter is designed for installation in various applications to compensate for single or multiple drive assemblies. AAF 006 |  | | A flexible and adaptable solution for central or de-central harmonic mitigation. |
Range Enclosures - The unit meets IP21/Nema 1 protection requirements as standard
- IP54/Nema12 is available on request
Match for industrial automation, high dynamic applications, safety installations. Highlights - Small compact housing
- Easy to use in retrofit applications
- One filter module can be used for several frequency converters
- The smallest filter available today in this power range
- Easy maintenance as all parts are accessible from the front. This means that the filter can be mounted side-by-side, saving even more space
- Easy cable access and bottom entry
- Standards conformant coated PCB's
- 100% factory test
- Auto current sensor adaptation
Techical datasheet : VLT Advanced Active Filter.pdf
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VLT Advanced Harmonic FilterAdvanced harmonic filters not to be compared with traditional harmonic trap filters. The Danfoss harmonic filters have been specially designed to match the Danfoss frequency converters. AHF 005 and AHF 010 |  | | Optimised harmonic performance with the VLT FC series up to 250 kW |
Range - 380 - 415V, 50/60Hz, 10 - 370A
- 440 - 480V, 60Hz, 10 - 370A
- 500 - 525V, 50Hz, 10 - 324A
- 690, 50Hz, 43 - 370A
Enclosures - IP 20 enclosure in entire power range
Match for industrial automation, high dynamic applications, safety installations. Highlights - Small compact housing that fits into a panel
- Easy to use in retrofit applications
- AHF 010 reduces the total harmonic current distortion to 10%
- AHF 005 reduces the total harmonic current distortion to 5%
- One filter module can be used for several frequency converters
- High efficiency
- User-friendly commissioning - no adjustment necessary
- No routine maintance required
Techical datasheet : VLT Advanced Harmonic Filter.pdf
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VLT Power OptionDu/dt filters reduce the du/dt values on the motor terminal phase-to-phase voltage - an issue that is important for short motor cables. MCC 102 |  | | Compared to sinewave filters, the du/dt filters have a cut-off frequency above the switching frequency. |
Range - 3 x 200 - 500 V, 24 - 2300 A
- 3 x 525 - 690 V, 28 - 1350 A
Enclosures - IP 00 and IP 20 enclosure in entire power range
Match for applications with short motor cables, applications with older motors, aggressive environments, applications with frequent braking, motor cable length up to 150 m. Highlights - Protects the motor against voltage peaks and high du/dt values hence prolongs the lifetime of the motor
- Allows the use of motors which are not specifically designed for converter operation, for example in retrofit applications
- Reduced size, weight and price compared to the sine-wave filters
- Possibility of connecting shielded cables with included decoupling plate
- Compatible with all control principle including flux and WC+
- Parallel filter installation is possible with applications in the high power range
Techical datasheet : VLT Power Option.pdf
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Sine Wave FiltersSine-wave output filters are low-pass filters that suppress the switching frequency component from the drive and smooth out the phase-to-phase output voltage of the drive to become sinusoidal. This reduces the motor insulation stress and bearing currents. MCC 101 |  | | By supplying the motor with a sinusoidal voltage waveform, the switching acoustic noise from the motor is also eliminated. |
Range - 3 x 200 - 500 V, 2.5 - 1,200 A
- 3 x 525 - 690 V, 13 - 1,320 A
Enclosures - IP00 and IP20 enclosure in entire power range
Match for applications with older motors, aggressive environments, applications with frequent braking, 690 V applications with general purpose motors. Highlights - Protects the motor against dU/dt stress which prolongs the lifetime
- Lowers the frequency depending losses in the motor, eddy current losses and stray flux losses
- Diminishes acoustic switching noise on the motor
- Reduces semi conduct losses in the drive with long motor cables
- Decreases electromagnetic radiated emissions on unscreened motor cables
- Reduces voltage peaks
- Reduces electrical discharges in the motor construction thus prolonged bearing life time
- Compatible with all control principle including flux and WC+
- Parallel filter installation is possible with applications in the high power range
Techical datasheet : VLT Power Option Sine Wave Filters.pdf
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