Danfoss AKD 2800 Quick Setup Manual page 68

Control characteristics:
Frequency range ............................................................................................................ 0.2 - 132 Hz, 1 - 1000 Hz
Resolution of output frequency ......................................................................................... 0.013 Hz, 0.2 - 1000 Hz
Repeat accuracy of Precise start/stop(terminals 18, 19) ..................................................................... ≤ ± 0.5 msec
System response time (terminals 18, 19, 27, 29, 33) .......................................................................... ≤ 26.6 msec
Speed control range (open loop) .................................................................................. 1:15 of synchronous speed
Speed control range (closed loop) ............................................................................. 1:120 of synchronous speed
Speed accuracy (open loop) ....................................................................... 90 - 3600 rpm: Max. error of ±23 rpm
Speed accuracy (closed loop) ................................................................... 30 - 3600 rpm: Max. error of ±7.5 rpm
All control characteristics are based on a 4-pole asynchronous motor
Surroundings:
Enclosure ....................................................................................................................................................... IP 20
Vibration test .................................................................................................................................................. 0.7 g
Max. relative humidity .................................................................................................. 5% - 85% during operation
Ambient temperature ............................................................................ Max. 45 °C (24-hour average max. 40 °C)
Derating for high ambient temperature, see special conditions in the Design Guide
Min. ambient temperature during full-scale operation ...................................................................................... 0 °C
Min. ambient temperature at reduced performance ................................................................................... - 10 °C
Temperature during storage/transport ............................................................................................ -25 - +65/70 °C
Max. altitude above sea level ...................................................................................................................... 1000 m
Derating for high air pressure, see special conditions in the Design Guide
EMC standards, Emission ............................................................................. EN 50081-2, EN 61800-3, EN 55011
EMC standards, Immunity .................................................................................................................................. EN
50082-1/2, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61800-3
Safeguards:
• Electronic thermal motor protection against overload.
• Temperature monitoring of the power module ensures that the frequency converter cuts
out if the temperature reaches 100 °C. An overload temperature cannot be reset until the
temperature of the power module is below 70 °C.
• The frequency converter is protected against short-circuits on motor terminals U, V, W.
•
If a mains phase is missing, the frequency converter will cut out.
• Monitoring of the intermediate circuit voltage ensures that the frequency converter cuts out
if the intermediate circuit voltage is too low or too high.
• The frequency converter is protected against earth fault on motor terminals U, V, W.
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AKD 2800
MG.28.H2.02 -