General Specifications - Danfoss VLT Decentral Drive FCD 302 Operating Manual

Specifications

8.2 General Specifications

Mains supply (L1, L2, L3)
Supply voltage
Mains voltage low / mains drop-out:
During low mains voltage or a mains drop-out, the frequency converter 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 frequency converter's lowest rated supply voltage.
Supply frequency
Max. imbalance temporary between mains phases
True Power Factor (λ)
Displacement Power Factor (cos ϕ)
Switching on input supply L1, L2, L3 (power-ups)
The unit is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical Amperes, 480 V maximum.
Motor output (U, V, W)
Output voltage
Output frequency
Output frequency in Flux Mode
Switching on output
Ramp times
8 8
Torque Characteristics
Starting torque (Constant torque)
Starting torque
Overload torque (Constant torque)
Starting torque (Variable torque)
Overload torque (Variable torque)
1) Percentage relates to the nominal torque.
Cable lengths and cross sections for control cables
Max. motor cable length, screened
Max. motor cable length, unscreened, without fulfilling emission specification.
Maximum cross section to control terminals, flexible/ rigid wire without cable end sleeves
Maximum cross section to control terminals, flexible wire with cable end sleeves
Maximum cross section to control terminals, flexible wire with cable end sleeves with collar
Minimum cross section to control terminals
1) Power cables, see tables in chapter 8.1 Electrical Data and Wire Sizes of the VLT
Protection and Features
•
Electronic thermal motor protection against overload.
•
Temperature monitoring of the heatsink ensures that the frequency converter trips if the temperature reaches a
predefined level.
•
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 constantly checks for critical levels of internal temperature, load current, high voltage on
the intermediate circuit and low motor speeds. As a response to a critical level, the frequency converter can adjust
the switching frequency and/ or change the switching pattern in order to ensure the performance of the drive.
74
®
VLT Decentral Drive FCD 302
1)
Danfoss A/S © 05/2016 All rights reserved.
3.0% of rated supply voltage
≥ 0.9 nominal at rated load
near unity (> 0.98)
maximum 2 times/min.
0-100% of supply voltage
maximum 160% for 60 s
maximum 180% up to 0.5 s
maximum 160% for 60 s
maximum 110% for 60 s
maximum 110% for 60 s
1.5 mm
1.5 mm
1.5 mm
0.25 mm
®
Decentral Drive FCD 302 Design Guide.
380-480 V ±10%
50/60 Hz ± 5%
0-590 Hz
0-300 Hz
Unlimited
0.01-3600 s
1)
1)
1)
1)
1)
10 m ((32.8 ft))
10 m (32.8 ft)
2
/16 AWG
2
/16 AWG
2
/16 AWG
2
/ 24 AWG
MG04F402