Control characteristics:
Resolution of output frequency at 0–1000 Hz : +/- 0.003 Hz
System response time (terminals 18, 19, 27, 29, 32, 33) : ≤ 2 ms
Speed control range (open-loop) 1:100 of synchronous speed
Speed accuracy (open-loop) 30–4000 rpm: Maximum error of ±8 rpm
All control characteristics are based on a 4-pole asynchronous motor
Surroundings:
Enclosure, frame size D and E IP 21, IP 54 (hybrid)
Enclosure, frame size F IP 21, IP 54 (hybrid)
Vibration test 0.7 g
Relative humidity 5–95% (IEC 721-3-3; Class 3K3 (non-condensing) during operation
Aggressive environment (IEC 60068-2-43) H
2
S test
class kD
Test method according to IEC 60068-2-43 H2S (10 days)
Ambient temperature (at 60 AVM switching mode)
- with derating max. 131°F [55 °C]
1)
- with full output power, typical EFF2 motors max. 122°F [50°C]
1)
- at full continuous FC output current max. 113°F [45°C]
1)
1)
For more information on derating see the Design Guide, section on Special Conditions.
Minimum ambient temperature during full-scale operation 32°F [0°C]
Minimum ambient temperature at reduced performance 14°F [- 10 °C]
Temperature during storage/transport -13°–+149°/158°F [-25°–+65°/70°°C]
Maximum altitude above sea level without derating 3280 ft [1000 m]
Maximum altitude above sea level with derating 9842 ft [3000 m]
Derating for high altitude, see section on special conditions
EMC standards, Emission EN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3
EMC standards, Immunity
EN 61800-3, EN 61000-6-1/2,
EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6
See section on special conditions!
Control card performance:
Scan interval : 5 ms
Control card, USB serial communication:
USB standard 1.1 (Full speed)
USB plug USB type B “device” plug
Connection to PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
The USB connection is
not galvanically isolated from protection ground. Use only isolated laptop/PC as connection to the USB connector
on the adjustable frequency drive or an isolated USB cable/drive.
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 a predefined level. An
overload temperature cannot be reset until the temperature of the heatsink is below the values stated in the tables on the following pages
(guideline - these temperatures may vary for different power sizes, frame sizes, enclosure ratings, etc.).
• 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.
8 General Specifications
VLT AQUA Low Harmonic Drive Instruction
Manual
8-4
MG.20.T1.22 - VLT
®
is a registered Danfoss trademark
8
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