10.2 General Technical Data
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 temperature 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.). VLT AQUA 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
200-240V ±10%
Supply voltage
380-480V ±10%
Supply voltage
525-600V ±10%
Supply voltage
525-690V ±10%
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
50/60Hz +4/-6%
The frequency converter power supply is tested in accordance with IEC61000-4-28, 50Hz +4/-6%.
Max. imbalance temporary between mains phases
3.0% of rated supply voltage
True Power Factor (
λ
)
≥ 0.9 nominal at rated load
Displacement Power Factor (cos
φ
) near unity
(> 0.98)
Switching on input supply L1, L2, L3 (power-ups) ≤ enclosure type A
maximum 2 times/min.
Switching on input supply L1, L2, L3 (power-ups) ≥ enclosure type B, C
maximum 1 time/min.
Switching on input supply L1, L2, L3 (power-ups) ≥ enclosure type D, E, F
maximum 1 time/2 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, 240/480V
maximum.
Motor output (U, V, W):
Output voltage
0 - 100% of supply voltage
Output frequency
0 - 1000Hz
*
Switching on output
Unlimited
Ramp times
1 - 3600 sec.
*
Dependent on power size.
Torque characteristics:
Starting torque (Constant torque)
maximum 110% for 1 min.
*
Starting torque
maximum 135% up to 0.5 sec.
*
Overload torque (Constant torque)
maximum 110% for 1 min.
*
*Percentage relates to VLT AQUA Drive's nominal torque.
Specifications
VLT
®
AQUA Drive
Operating Instructions
MG.20.M8.02 - VLT
®
is a registered Danfoss trademark
75
10
10
