Siemens SIMOTICS M-1PH8 - Page 261

Appendix
A
A.1 Description of terms
Rated torque M
N
The rated torque is the torque that is mechanically available at the shaft and can be thermally
provided corresponding to the speci󹪝ed operating mode (duty type) according to IEC 60034-1.
Rated speed n
N
This is the speed for which the rated power and the rated torque are de󹪝ned corresponding to
the speci󹪝ed operating mode (duty type) according to IEC 60034-1.
Rated voltageV
N
Voltage between two motor phases for which the rating data (P
N
, n
N
, etc.) is de󹪝ned. The rated
voltage de󹪝nition takes into account magnetic (iron saturation) and thermal factors.
Rated current I
N
This is the current (rms phase value) that 󹪞ows at the rated speed and rated torque and can be
thermally provided according to the speci󹪝ed operating mode (duty type) according to IEC
60034-1.
Rated frequency f
N
Frequency required to obtain the performance ratings (P
N
, n
N
, etc.).
Rated power P
N
The rated power is the power that is mechanically available at the shaft and can be thermally
provided corresponding to the speci󹪝ed operating mode (duty type) according to IEC 60034-1.
Speed for 󹪝eld weakening with constant power n
2
Maximum achievable speed at rated power corresponding to the speci󹪝ed operating mode
(duty type) according to IEC 60034-1.
No-load current I
μ
This is the current (rms phase current) that is required in order to operate the motor under no-
load conditions at rated speed without load torque. The no-load current de󹪝nes the motor
magnetization in the base speed range (low speed at the start of 󹪝eld weakening).
1PH8 SIMOTICS M main motors
Con󹪝guration Manual, 12/2022, A5E51895839A 259