Danfoss FC322 Series Instruction Manual page 174

10 Specifications
Protection and Features:
• Electronic thermal motor protection against overload.
• Temperature monitoring of the heatsink ensures that the frequency converter trips if the temperature reaches 95 °C ± 5°C. An overload tem-
perature cannot be reset until the temperature of the heatsink is below 70 °C ± 5°C (Guideline - these temperatures may vary for different
power sizes, enclosures etc.). Automation VT Drive has an auto derating function to avoid it's heatsink reaching 95 °C.
• The frequency converter is protected against short-circuits on motor terminals U, V, W.
• If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
• Monitoring of the intermediate circuit voltage ensures that the frequency converter trips if the intermediate circuit voltage is too low or too high.
• The frequency converter is protected against earth faults on motor terminals U, V, W.
Mains supply (L1, L2, L3):
Supply voltage
Supply voltage
Supply voltage
Supply voltage
Mains voltage low / mains drop-out:
During low mains voltage or a mains drop-out, the FC continues until the intermediate circuit voltage drops below the minimum stop level, which
corresponds typically to 15% below the FC's lowest rated supply voltage. Power-up and full torque cannot be expected at mains voltage lower than
10% below the FC's lowest rated supply voltage.
Supply frequency
The frequency converter power supply is tested in accordance with IEC61000-4-28, 50 Hz +4/-6%.
Max. imbalance temporary between mains phases
True Power Factor (λ)
Displacement Power Factor (cosφ) near unity
Switching on input supply L1, L2, L3 (power-ups) ≤ enclosure type A
Switching on input supply L1, L2, L3 (power-ups) ≥ enclosure type B, C
Switching on input supply L1, L2, L3 (power-ups) ≥ enclosure type D, E, F
10
Environment according to EN60664-1
The unit is suitable for use on a circuit capable of delivering not more than 100.000 RMS symmetrical Amperes, 240/480 V maximum.
Motor output (U, V, W):
Output voltage
Output frequency
Switching on output
Ramp times
* Dependent on power size.
Torque characteristics:
Starting torque (Constant torque)
Starting torque
Overload torque (Constant torque)
*Percentage relates to Automation VT Drive nominal torque.
Cable lengths and cross sections:
Max. motor cable length, screened/armoured
Max. motor cable length, unscreened/unarmoured
Max. cross section to motor, mains, load sharing and brake *
Maximum cross section to control terminals, rigid wire
Maximum cross section to control terminals, flexible cable
Maximum cross section to control terminals, cable with enclosed core
Minimum cross section to control terminals
* See Mains Supply tables for more information!
174
overvoltage category III/pollution degree 2
MG.20.U1.22
Automation VT Drive FC322
Instruction Manual
200-240 V ±10%
380-480 V ±10%
525-600 V ±10%
525-690 V ±10%
50/60 Hz +4/-6%
3.0 % of rated supply voltage
≥ 0.9 nominal at rated load
(> 0.98)
maximum 2 times/min.
maximum 1 time/min.
maximum 1 time/2 min.
0 - 100% of supply voltage
0 - 1000 Hz *
Unlimited
1 - 3600 sec.
*
maximum 110% for 1 min.
*
maximum 135% up to 0.5 sec.
maximum 110% for 1 min. *
Automation VT Drive: 150 m
Automation VT Drive: 300 m
1.5 mm 2 /16 AWG (2 x 0.75 mm 2 )
1 mm 2 /18 AWG
0.5 mm 2 /20 AWG
0.25 mm 2