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 specied 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 dened corresponding to
the specied operating mode (duty type) according to IEC 60034-1.
Rated voltageV
N
Voltage between two motor phases for which the rating data (P
N
, n
N
, etc.) is dened. The rated
voltage denition 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 specied 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 specied 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 specied 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 denes the motor
magnetization in the base speed range (low speed at the start of eld weakening).
1PH8 SIMOTICS M main motors
Conguration Manual, 12/2022, A5E51895839A 259