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Danfoss vlt aqua Design Guide

Danfoss vlt aqua
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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 ± 41°F [95°C ±
5°C]. An overload temperature cannot be reset until the temperature of the heatsink is below 158°F ± 9°F [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
203°F [95°C].
The adjustable frequency drive is protected 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 intermediate 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 ground faults on motor terminals U, V, W.
Line power supply (L1, L2, L3):
Supply voltage 200–240 V ±10%
Supply voltage 380–480 V ±10%
Supply voltage 525–600 V ±10%
Supply voltage 525–690 V ±10%
AC line voltage low / line drop-out:
During low AC line voltage or a line drop-out, the adjustable frequency drive continues until the intermediate circuit voltage drops below the minimum
stop level, which corresponds typically to 15% below the adjustable frequency drive's lowest rated supply voltage. Power-up and full torque cannot be
expected at AC line voltage lower than 10% below the adjustable frequency drive's lowest rated supply voltage.
Supply frequency 50/60 Hz +4/-6%
The adjustable frequency drive power supply is tested in accordance with IEC61000-4-28, 50 Hz +4/-6%.
Max. imbalance temporary between line phases 3.0% of rated supply voltage
True Power Factor (λ) 0.9 nominal at rated load
Displacement Power Factor (cosφ) 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, 240/480 V maximum.
Motor output (U, V, W):
Output voltage 0–100% of supply voltage
Output frequency 0–1000 Hz
*
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.
3 VLT AQUA Selection VLT
®
AQUA Drive Design Guide
3-14
MG.20.N5.22 - VLT
®
is a registered Danfoss trademark
3

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Danfoss vlt aqua Specifications

General IconGeneral
Supply Voltage200-240V, 380-500V, 525-600V
EnclosureIP20
FeaturesEnergy optimization
ApprovalsCE, UL, cUL
Input Voltage Range200-240V, 380-500V, 525-600V
Output Voltage Range0 to supply voltage
Protection FeaturesOvervoltage, Undervoltage, Overcurrent, Short circuit, Ground fault
Communication InterfacesPROFIBUS
Cooling MethodAir-cooled

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