Danfoss VLT AutomationDrive FC 302 Operating Instructions Manual

Also see for VLT AutomationDrive FC 302: Service guide Programming guide Instruction manual Installation guide Operating guide

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Danfoss VLT AutomationDrive FC 302 Operating Instructions Manual Manual pdf 40 page image

additional losses generated from othercomponents installed inside the enclosure. Thetotal required airflow must be calculated so thatthe appropriate fans can be selected. Someenclosure manufacturers offer software forperforming the calculations (i.e. Rittal Thermsoftware).If the frequency converter is the only heatgenerating component in the enclosure, theminimum airflow required at an ambienttemperature of 45 °C for the D3 and D4 framefrequency converter is 391 m3/h (230 cfm). Theminimum airflow required at an ambienttemperature of 45 °C for the E2 frame frequencyconverter is 782 m3/h (460 cfm).NOTICESee the instruction for Top and Bottom Covers - RittalEnclosure, 177R0076, for further information.Ordering informationFrame size D3: 176F1781Frame size D4: 176F1782Frame size E2: 176F17833.3.4 Installation of Top and Bottom CoversTop and bottom covers can be installed on frame sizes D3,D4 and E2. These kits are designed to be used to directthe back-channel airflow in and out the back of thefrequency converter as opposed to in the bottom and outthe top of the frequency converter (when the frequencyconverters are being mounted directly on a wall or inside awelded enclosure).Notes:1. If external duct work is added to the exhaustpath of the frequency converter, additional backpressure reduces the cooling of the frequencyconverter. The frequency converter must bederated to accommodate the reduced cooling.First, the pressure drop must be calculated, thenrefer to the derating tables located earlier in thissection.2. A doorfan(s) is required on the enclosure toremove the heat losses not contained in thebackchannel of the frequency converter and anyadditional losses generated from othercomponents installed inside the enclosure. Thetotal required airflow must be calculated so thatthe appropriate fans can be selected. Someenclosure manufacturers offer software forperforming the calculations (i.e. Rittal Thermsoftware).If the frequency converter is the only heatgenerating component in the enclosure, theminimum airflow required at an ambienttemperature of 45 °C for the D3 and D4 framefrequency converters is 391 m3/h (230 cfm). Theminimum airflow required at an ambienttemperature of 45 °C for the E2 frame frequencyconverter is 782 m3/h (460 cfm).NOTICESee the Top and Bottom Covers Only Instruction,175R1106, for further information.Ordering informationFrame size D3 and D4: 176F1862Frame size E2: 176F18613.3.5 Outside Installation/NEMA 3R Kit forRittal Enclosures176FT261.10Illustration 3.45This section is for the installation of NEMA 3R kits availablefor the frequency converter enclosure types D3, D4 and E2.These kits are designed and tested to be used with IP00/Chassis versions of these enclosure types in Rittal TS8NEMA 3R or NEMA 4 enclosures. The NEMA-3R enclosure isan outdoor enclosure that provides a degree of protectionagainst rain and ice. The NEMA-4 enclosure is an outdoorHow to Install VLT® Automation Drive FC 300 Operating Instructions38 MG33U402 - Rev. 2013-12-1633