FC 300 Design Guide
FC 300 Selection
" General Specifications
Protection and Features:
• Electronic thermal motor protection against overload.
• Temperature monitoring of the heatsink ensures that the adjustable frequency drive trips if the
temperature reaches 203°F ± 9°F [95 °C ± 5°C]. An overload temperature cannot be reset
until the te m perature of the he a tsink is below 158°C ± 9°C [70°C ± 5°C] (Guide line - these
temperatures may vary for diffe r ent power sizes, enclosures, e tc.).
• The adjustable fre quency drive is protecte d against short circuits on motor terminals U, V, W.
• If a line phase is missing, the adjustable frequency drive trips or issues a warning (depending on the load).
• Monitoring of the interm ediate circuit voltage ensures that the adjustable frequency drive
trips if the intermediate circuit voltage is too low or too high.
• The adjustable frequency drive is protected against g round 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 3 02: 525-600 V ±10%
Supply frequency ............................................................................................................... 50/60 Hz
Max. imbalance temporary between mains phases ..................................... 3.0 % of rated supply voltage
TruePowerFactor(λ) .................................................................................. 0.90 nominal at rated load
Displacement 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 2
The unit is suitable for use on a circuit capable of delivering not more than 100,000
RMS symmetrical Amperes, 240/500/600 V maximum.
Motor output (U, V, W):
Output voltage .......................................................................................... 0 - 100% of supply voltage
Output frequency ............................................................. FC 301: 0.2 - 1000 Hz / FC 302: 0 - 1000 Hz
Switching on output ........................................................................................................... Unlimited
Ramp 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 300’s nominal torque.
Cable lengths and cross -sections:
Max. motor cable length, shielded/armored ..................... FC 301: 150 ft (50 m) / FC 302: 500 ft (15
0m)
Max. motor cable length, non-shielded/unarmored ......... FC 301: 250 ft (75 m) / FC 302: 1000 f t (300 m)
Max. cross-section to motor, mains, load sharing and brake (see section Electrical Data in the
FC 300 De sign Guide MG.33.BX.YY for more information), (0.34 HP - 10 HP / 0.25 kW - 7
.5
kW) ...................................................................................................... 0.006 in.
2
(4 mm
2
)/10AWG
Maximum cross-section to control wires, rigid wire ................................................................................
0.002 in.
2
(1.5 mm
2
)/16 AWG (2 x 0.001 in.
2
(2 x 0.75 mm
2
))
Maximum cro ss-se ction to control c ables, flexible cable .............................. 0.0015 in.
2
(1 mm
2
)/18 AWG
Maximum cro ss-se ction to control cables, cable with enclosed core ............ 0.0008 in.
2
(0.5 mm
2
)/20 AWG
60
MG.33.B6.22 - VLT is a registered Danfoss trademark