Vacon NX User Manual

Brake chopper unit (NXB) vacon • 209
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
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Ch5 NXB 0261_5 261 2.3 2.4 2.6 2.7 2.8 2.9 3.1
Ch61 NXB 0300_5 300 2.0 2.1 2.2 2.3 2.4 2.5 2.7
Ch61 NXB 0385_5 385 1.6 1.7 1.7 1.8 1.9 2.0 2.1
Ch62 NXB 0460_5 460 1.3 1.4 1.5 1.5 1.6 1.7 1.7
Ch62 NXB 0520_5 520 1.2 1.2 1.3 1.3 1.4 1.5 1.5
Ch62 NXB 0590_5 590 1.0 1.1 1.1 1.2 1.2 1.3 1.4
Ch62 NXB 0650_5 650 0.9 1.0 1.0 1.1 1.1 1.2 1.2
Ch62 NXB 0730_5 730 0.8 0.9 0.9 1.0 1.0 1.0 1.1
Table 105. Maximum resistance
Chassi
s
NXBunit
Thermal
current [Ith]
Maximum resistance at DC-link voltages [ohm]
605 637 669 701 733 765 797
Ch3 NXB 0031_5 31 97.6 102.8 107.9 113.1 118.2 123.3 128.5
Ch3 NXB 0061_5 61 49.6 52.2 54.8 57.5 60.1 62.7 65.3
Ch4 NXB 0087_5 87 34.8 36.6 38.5 40.3 42.1 43.9 45.8
Ch4 NXB 0105_5 105 28.8 30.3 31.9 33.4 34.9 36.4 37.9
Ch4 NXB 0140_5 140 21.6 22.8 23.9 25.0 26.2 27.3 28.4
Ch5 NXB 0168_5 168 18.0 19.0 19.9 20.9 21.8 22.8 23.7
Ch5 NXB 0205_5 205 14.8 15.5 16.3 17.1 17.9 18.6 19.4
Ch5 NXB 0261_5 261 11.6 12.2 12.8 13.4 14.0 14.6 15.3
Ch61 NXB 0300_5 300 10.1 10.6 11.2 11.7 12.2 12.7 13.3
Ch61 NXB 0385_5 385 7.9 8.3 8.7 9.1 9.5 9.9 10.3
Ch62 NXB 0460_5 460 6.6 6.9 7.3 7.6 8.0 8.3 8.7
Ch62 NXB 0520_5 520 5.8 6.1 6.4 6.7 7.0 7.4 7.7
Ch62 NXB 0590_5 590 5.1 5.4 5.7 5.9 6.2 6.5 6.8
Ch62 NXB 0650_5 650 4.7 4.9 5.1 5.4 5.6 5.9 6.1
Ch62 NXB 0730_5 730 4.1 4.4 4.6 4.8 5.0 5.2 5.5
Table 104. Minimum resistance
Chassis NXB unit
Thermal
current [Ith]
Minimum resistance at DC-link voltages [ohm]
605 637 669 701 733 765 797

Vacon NX Specifications

General

Product Type	AC Drive
Control Method	Scalar Control
Enclosure	IP00, IP21
Communication	Ethernet
Safety	STO (Safe Torque Off)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Ambient Temperature Range	-10°C to +50°C (with derating above +40°C)
Cooling Method	Air-cooled, Liquid-cooled