Danfoss VT2800 Series Design Manual page 149

Max. cross section to control cables, cable with enclosed core ............................................... 0.5 mm
When complying with EN 55011 1A and EN 55011 1B the motor cable must in certain
instances be reduced. See EMC emission.
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) ................................................................................. 1:10 of synchronous speed
Speed control range (closed loop) ...........................................................................
Speed accuracy (open loop) .................................................................. 150 - 3600 rpm: Max. error of ±23 rpm
Speed accuracy (closed loop) ................................................................
All control characteristics are based on a 4-pole asynchronous motor
Surroundings:
Enclosure ....................................................................................................................................................... IP 20
Enclosure with options .............................................................................................................................. NEMA 1
Vibration test ................................................................................................................................................. 0.7 g
Max. relati v e humidity .................................................................................................. 5% - 93% 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 61081-2, 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
See section on special conditions in the Design Guide
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.
MG.28.E9.02 - VLT is a registered Danfoss trademark
®
VLT 2800 Series
1:120 of synchronous speed
30 - 3600 rpm: Max. error of ±7.5 rpm
2
/20 AWG
149