Siemens SINAMICS S150 NEMA, Operating Instructions Manual

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Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without an encoder
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
489
Motor data for permanent-magnet synchronous motors
Table 7- 2 Motor data type plate
Parameter Description Comment
p0304 Rated motor voltage If this value is not known, the value "0" can also be entered.
Entering the correct value, however, means that the stator leakage
inductance (p0356, p0357) can be calculated more accurately.
p0305 Rated motor current
p0307 Rated motor power
p0310 Rated motor frequency
p0311 Rated motor speed
p0314 Motor pole pair number If this value is not known, the value "0" can also be entered.
p0316 Motor torque constant If this value is not known, the value "0" can also be entered.
If the torque constant k
T
is not stamped on the type plate or specified in the data sheet, you
can calculate this value from the rated motor data or from the stall current I
0
and stall torque
M
0
as follows:
or
The optional motor data can be entered if it is known. Otherwise, this data is estimated from
the type plate data or determined by means of motor identification or speed controller
optimization.