36 - PVD 3663_GB_NX_March 2017.Docx
3.2.9. Rated data according to rated voltage variation
The nominal characteristics and especially the rated speed, maximal speed, rated
power, rated torque, depend on the nominal voltage supplying the motor considered
as the rated voltage. The rated data mentioned in the data sheet are given for each
association of motor and drive. Therefore, if the supply voltage changes, the rated
values will also change. As long as the variation of the rated voltage remains limited,
for instance
10%
of the nominal value, it is possible to correctly evaluate the new
rated values as illustrated below.
Example:
Extract of NX620EAR datasheet
If we suppose that the rated voltage U
n
=400 V
rms
decreases of
10%
; this means
that the new rated voltage becomes U
n2
=360 V
rms
.
Rated speed:
The former rated speed N
n
=3900 rpm obtained with a rated voltage U
n
=400 V
rms
and
an efficiency of
=92% leads to the new rated speed N
n2
given as follows:
1
*
2
2
n
n
n
n
U
U
N
N
rpm
N
n
3476
92
.
0
92
.
0
1
400
360
*
3900
2
Summary of Contents for NX Series
Page 1: ...1 PVD 3663_GB_NX_March 2017 Docx Servomotors NX Series Technical Manual PVD 3663...
Page 3: ...3 PVD 3663_GB_NX_March 2017 Docx Compliance with UL standards...
Page 4: ...4 PVD 3663_GB_NX_March 2017 Docx Compliance with UL standards...
Page 39: ...39 PVD 3663_GB_NX_March 2017 Docx 3 3 Dimension drawings 3 3 1 NX1...
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Page 72: ...72 PVD 3663_GB_NX_March 2017 Docx 3 5 2 2 NX205 3 5 2 3 NX210...
Page 73: ...73 PVD 3663_GB_NX_March 2017 Docx 3 5 2 4 NX310 3 5 2 5 NX420...
Page 74: ...74 PVD 3663_GB_NX_March 2017 Docx 3 5 2 6 NX430 3 5 2 7 NX620...
Page 75: ...75 PVD 3663_GB_NX_March 2017 Docx 3 5 2 8 NX630 3 5 2 9 NX820...
Page 76: ...76 PVD 3663_GB_NX_March 2017 Docx 3 5 2 10 NX840 3 5 2 11 NX860...
Page 91: ...91 PVD 3663_GB_NX_March 2017 Docx 3 8 4 Mains supply connection diagrams...
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