Danfoss FC 300 Design Manual

Also see for FC 300: Operating instructions Instruction manual Design guide Design guide Design guide

Contents

Danfoss FC 300 Design Manual Manual pdf 60 page image

FC 300 Design GuideFC 300 Selection" General SpecificationsProtection and Features:ï Electronic thermal motor protection against overload.ï Temperature monitoring of the heatsink ensures that the adjustable frequency drive trips if thetemperature reaches 203∞F ± 9∞F [95 ∞C ± 5∞C]. An overload temperature cannot be resetuntil the temperature of the heatsink is below 158∞C ± 9∞C [70∞C ± 5∞C] (Guideline - thesetemperatures may vary for different power sizes, enclosures, etc.).ï The adjustable frequency drive is protected against short circuits on motor terminals U, V, W.ï If a line phase is missing, the adjustable frequency drive trips or issues a warning (depending on the load).ï Monitoring of the intermediate circuit voltage ensures that the adjustable frequency drivetrips if the intermediate circuit voltage is too low or too high.ï The adjustable frequency drive is protected against ground faults on motor terminals U, V, W.Mains supply (L1, L2, L3):Supply voltage ....................................................................................................... 200-240 V ±10%Supply voltage ............................................................. FC 301: 380-480 V / FC 302: 380-500 V ±10%Supply voltage ........................................................................................... FC 302: 525-600 V ±10%Supply frequency ............................................................................................................... 50/60 HzMax. imbalance temporary between mains phases ..................................... 3.0 % of rated supply voltageTrue Power Factor (λ) .................................................................................. 0.90 nominal at rated loadDisplacement Power Factor (cos ϕ) near unity ........................................................................ (> 0.98)Switching on input supply L1, L2, L3 ................................................................................ 2 times/min.Environment according to EN60664-1 .................................... overvoltage category III/pollution degree 2The unit is suitable for use on a circuit capable of delivering not more than 100,000RMS symmetrical Amperes, 240/500/600 V maximum.Motor output (U, V, W):Output voltage .......................................................................................... 0 - 100% of supply voltageOutput frequency ............................................................. FC 301: 0.2 - 1000 Hz / FC 302: 0 - 1000 HzSwitching on output ........................................................................................................... UnlimitedRamp times ............................................................................................................. 0.01 - 3600 sec.Torque characteristics:Starting torque (Constant torque) ............................................................................ 160% for 1 min.*Starting torque ................................................................................................ 180% up to 0.5 sec.*Overload torque (Constant torque) ........................................................................... 160% for 1 min.**Percentage relates to FC 300ís nominal torque.Cable lengths and cross -sections:Max. motor cable length, shielded/armored ..................... FC 301: 150 ft (50 m) / FC 302: 500 ft (150 m)Max. motor cable length, non-shielded/unarmored ......... FC 301: 250 ft (75 m) / FC 302: 1000 ft (300 m)Max. cross-section to motor, mains, load sharing and brake (see section Electrical Data in theFC 300 Design Guide MG.33.BX.YY for more information), (0.34 HP - 10 HP / 0.25 kW - 7.5kW) ...................................................................................................... 0.006 in.2 (4 mm 2 ) / 10 AWGMaximum cross-section to control wires, rigid wire ................................................................................0.002 in. 2 (1.5 mm2 )/16 AWG (2 x 0.001 in. 2 (2 x 0.75 mm 2 ))Maximum cross-section to control cables, flexible cable .............................. 0.0015 in.2 (1 mm 2 )/18 AWGMaximum cross-section to control cables, cable with enclosed core ............ 0.0008 in.2 (0.5 mm 2 )/20 AWG60 MG.33.B6.22 - VLT is a registered Danfoss trademark