Motors-D81.1-complete-English-06-2020

© Siemens 2020
Standard induction motors optimized for converter operation – VSD10 line
Orientation
■ Technical specifications
Additional information
Mechanical stress and grease lifetime
When motors are operated at speeds above the rated speed,
the mechanical smooth running operation and the bearings are
subjected to greater mechanical stress. This reduces the grease
lifetime and the bearing lifetime.
Above 100 Hz, the motors must be balanced for twice the rated
frequency.
Motor protection
A motor protection function can be implemented using
the I²t sensing function implemented in the converter software.
If required, more precise motor protection can be afforded by
direct temperature measurement using KTY84 sensors, PTC
thermistors, or Pt100/1000 resistance thermometers in the motor
winding. Some converters from Siemens determine the motor
temperature using the resistance of the temperature sensor.
They can be set to a required temperature for alarm and tripping.
When ordering PTC thermistors, Pt100 resistance thermistors or
other temperature sensors to monitor the cooling temperature,
the KTY84 sensors, otherwise provided as standard, are omitted.
As described above, KTY84 sensors are evaluated in the
SINAMICS converters.
Motor connection
When connecting the motors, it is important to consider the restrictions
for 1LE1 line motors as well as the maximum conductor
cross-sections permitted for the converter.
Operating data for 50 Hz/60 Hz/87 Hz characteristics
SIMOTICS GP/SD VSD10 line motors are designed for operation
with 50 Hz, 60 Hz and 87 Hz characteristics (87 Hz characteristic
up to frame size 200).
Operation with the 50/60 Hz characteristic requires Y (star or
wye) connection; operation with the 87 Hz characteristic requires
connection.
The corresponding power data are stamped on the rating plate
as standard. An ordering option is not required.
Vmot
440 V,
60 Hz
380 V,
50 Hz
Vline
480 V,
60 Hz
400 V,
50 Hz
Y connection
Y connection
∆ connection
G_D081_EN_00503
Maximum operating speed
The maximum operating speed is limited by the mechanical
speed limit of the motors as well as the available converter output
frequency.
A significant increase in the sound pressure level can be expected
when operating the motor above its rated speed (field
weakening range).
Mechanical speed limits SIMOTICS GP/SD VSD10 line:
Frame size
Mechanical speed limits for 1LE1.92 motors
2-pole
4-pole
n max
n max
rpm
rpm
100 5500 4200
112 5500 4200
132 4500 4200
160 4500 4200
180 4500 4200
200 4500 4200
225 4500 4500
250 3900 3700
280 3600 3000
315 – 2600
International use:
As special converter motors, SIMOTICS GP/SD VSD10 line motors
are presently not subject to any minimum efficiency requirements
in the EU and USA/Canada. However, other national certificates
may be required (e.g. CSA-S safety in Canada).
Therefore, for use in USA, Canada and Mexico, we recommend:
Ordering with order code D39 (version according to UL and
CSA-S).
Note:
At the present time, national Chinese regulations regarding converter
motors are being revised. A conclusive interpretation relating
to the design still cannot be made. As a consequence,
until further notice, for China we recommend that line motors
suitable for converter operation are used with CEL (China
Energy Label) (e.g. 1LE100. with order code D34).
4
80 V
46 V
0
n min
n N50
4-pole: 1500 rpm
2-pole: 3000 rpm
n N60
1800 rpm
3600 rpm
n N87
2610 rpm
5220 rpm
n max
Speed
Operating characteristics of SIMOTICS GP/SD VSD10 line motors
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