nord 6051302, Operating And Assembly Instruction Manual

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Table of Contents
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3.8.9 Operation with frequency inverters
NORD motors that comply with Class II Div.2 are suitable for operation on a frequency inverter. The
variable speed range requires temperature monitoring using temperature sensors. The approved speed
ranges can be found in the following table:
Type VR 5:1 Type VN 10:1 Type VW 20:1
Motor type M n
max
n
min
M n
max
n
min
M n
max
n
min
[Nm] [r/min] [r/min] [Nm] [r/min] [r/min] [Nm] [r/min] [r/min]
SK 80 LP/4 4.32 1680 350 3.16 1800 175 2.98 2400 110
SK 90 SP/4 6.10 1750 355 3.96 1800 185 4.45 2400 80
SK 90 LP/4 8.63 1695 360 6.28 1800 115 6.32 2400 110
SK 100 LP/4 12.50 1700 315 8.19 1800 100 9.25 2400 65
SK 112 MP/4 20.30 1750 360 11.87 1800 180 14.84 2400 115
SK 132 SP/4 30.50 1750 350 19.78 1800 185 22.25 2400 120
SK 132 MP/4 41.00 1745 350 29.67 1800 175 29.67 2400 125
SK 160 MP/4 60.30 1760 345 39.56 1800 175 44.51 2400 120
SK 160 LP/4 80.70 1760 350 59.34 1800 180 59.34 2400 115
SK 180 MP/4 100.60 1760 355 79.12 1800 180 74.18 2400 125
SK 180 LP/4 121.00 1765 350 98.90 1800 175 89.01 2400 120
If the frequency inverter is not approved for operation within the specified explosion hazard zone, the
frequency inverter is to be installed outside the explosion hazard area.
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