Protection and Features• Electronic thermal motor protection against overload.• Temperature monitoring of the heatsink ensures that the adjustable frequency drive trips when the temperaturereaches 203°F ± 9°F [95°C ± 5°C]. An overload temperature cannot be reset until the temperature of the heatsinkis below 158°F ± 9°F [70°C ± 5°C] (Guideline - these temperatures vary for different power sizes and enclosures).The adjustable frequency drive has an auto derating function to prevent its 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 intermediatecircuit voltage is too low or high.• The adjustable frequency drive is protected against ground faults on motor terminals U, V, W.Line power supplySupply terminals (6-pulse) L1, L2, L3Supply terminals (12-pulse) L1-1, L2-1, L3-1, L1-2, L2-2, L3-2Supply 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 voltagedrops below the minimum stop level, which corresponds typically to 15% below the lowest rated supply voltage. Power-up andfull torque cannot be expected at AC line voltage lower than 10% below the 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. temporary imbalance between line phases 3.0% of rated supply voltageTrue Power Factor (λ) ≥ 0.9 nominal at rated loadDisplacement power factor (cosφ) near unity (> 0.98)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 2The unit is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical Amperes, 480/600 Vmaximum.Motor output (U, V, W)Output voltage 0–100 % of supply voltageOutput frequency 0–590 HzSwitching on output UnlimitedRamp times 1–3600 sTorque characteristicsStarting torque (constant torque) maximum 110% for 1 minute*Starting torque maximum 135% up to 0.5 s*Overload torque (constant torque) maximum 110% for 1 minute**Percentage relates to nominal torque.General Specifications and ... Design GuideMG16C122 Danfoss A/S © Rev. 2014-01-13 All rights reserved. 2118 8
