Siemens SIMOTICS M-1PH8 - Different Rated Points for Induction Motors

As a result of the rotor design, a synchronous-reluctance motor has a restricted 󹪝eld-
weakening range, and when compared to an induction motor, has a lower maximum
mechanical speed.
P
max
S
1
n
P
n
2
n
N
P
N
Figure6-6 Typical speed-power diagram for 1PH8 synchronous-reluctance motors
Note
When con󹪝guring the system, the poorer power factor when compared to induction motors
must be taken into account. This results in a higher reactive and/or apparent power at the motor
terminals, and as a consequence, the converter must be able to provide a somewhat higher
current.
6.3 Di󹪜erent rated points for induction motors
All 1PH8 induction motors can be con󹪝gured based on a total of 4 characteristics and therefore
also 4 rated operating points. The rated points are also stamped on the motor nameplate.
For correct con󹪝guration, the line voltage and the line infeed are relevant for choosing the
characteristics and rated points.
Table 6-2 De󹪝nition of the characteristics and rated points:
Characteristics or‐
der
Converter sys‐
tem
Line voltage Supply infeed Remarks
1 SINAMICS 3 AC 400V Smart/Basic Line Module (SLM/
BLM)
Infeed with uncontrolled Smart/Basic-
Mode (converter output voltages up to
380V)
2 SINAMICS 3 AC 400V Active Line Module (ALM) Infeed with controlled active mode
(converter output voltages up to 425V)
3 SINAMICS 3 AC 480V Smart/Basic Line Module (SLM/
BLM)
Infeed with uncontrolled Smart/Basic-
Mode (converter output voltages up to
460V)
4 SINAMICS 3 AC 480V Active Line Module (ALM) Infeed with controlled Active Mode
(converter output voltages up to 500V)
Con󹪝guration
6.3Di󹪜erent rated points for induction motors
1PH8 SIMOTICS M main motors
212 Con󹪝guration Manual, 12/2022, A5E51895839A