Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without encoder
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
293
Motor data for permanent-field synchronous motors
Table 7-2
Motor data type plate
Parameter
Description
Remark
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 details of the torque constant k
T
are not provided on the type plate or in the data sheet, you
can calculate them as follows from the rated motor data or from the zero-speed current I
0
and zero-speed torque M0:
N
N
N
min
s
N
N
T
I
n
2
P
60
I
M
k
×
×
π
×
=
=
or
0
0
T
I
M
k
=
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.
Table 7-3
Optional motor data
Parameter
Description
Remark
p0320
Rated motor short-circuit current
This is used for the field weakening characteristic
p0322
Maximum motor speed
Maximum mechanical speed
p0323
Maximum motor current
De-magnetization protection
p0325
Rotor position identification current, 1st phase
-
p0327
Optional load angle
Optional otherwise leave at 90°
p0328
Reluctance torque constant
-
p0329
Rotor position identification current
-
p0341
Motor moment of inertia
For speed controller pre-control
p0344
Motor weight
-
p0350
Stator resistance, cold
-
p0356
Quadrature axis stator inductance Lq
-
p0357
In-line stator inductance Ld
-