VLT ® 2900 Series Cable lengths and cross sections: Max. motor cable length, screened/armoured cable 40 m Max. motor cable length, unscreened/unarmoured cable 75 m Max. motor cable length, screened/armoured cable and motor coil 100 m Max. motor cable length, unscreened/unarmoured cable and motor coil 200 m Max. motor cable length, screened/armoured cable and RFI/1B filter 200 V, 100 m Max. motor cable length, screened/armoured cable and RFI/1B filter 400 V, 25 m Max. motor cable length, screened/armoured cable and RFI 1B/LC filter 400 V, 25 m Max. cross section to motor, see next section. Max. cross section to control wires, rigid wire 1.5 mm 2 /16 AWG (2 x 0.75 mm 2 ) Max.
cross section to control cables, flexible cable 1 mm 2 /18 AWG Max. cross section to control cables, cable with enclosed core 0.5 mm 2 /20 AWG 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) 1:120 of synchronous speed Speed accuracy (open loop) 150 - 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 Enclosure with options NEMA 1 Vibration test 0.7 g Max. relative 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 VLT 2800 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 VLT 2800 Design Guide All about VLT 2900 MG.29.A3.02 - VLT ® is a registered Danfoss trademark 81