HEIDENHAIN iTNC 530 HSCI - 7.12 Determining Entries for Motor Tables; Determining Data for Linear Motors

1140 HEIDENHAIN Technical Manual iTNC 530 HSCI
7.12 Determining entries for motor tables
7.12.1 Determining data for linear motors
The motor data for linear motors are entered in the motor table after some
conversions using the values from the motor data sheet of the respective
manufacturer (here using the example of a Siemens motor).
Note
If you use a linear or torque motor that is not listed in the current
HEIDENHAIN motor table, please contact HEIDENHAIN. As an alternative,
you can also determine the input values yourself.
Values in the HEIDENHAIN motor table Values from the motor data sheet
TYPE: LSM Permanently excited linear synchronous motor
NAME: 1FN3900-4WB0 1FN3900-4WB0
MODE: 0
Rated current
I-N in [A
eff
] winding
I-N: 49.4
Data sheet value IN
IN = 49.4 A
Rated voltage
U-N in [V
eff
] interlinked
U-N: 394
Calculation from data sheet values FN, IN, RP.120, LP
U
e
= N-N / (1000 mm/m) ⋅ FN / (IN ⋅ 3)
= (2.66 m/s) ⋅ 8100 N / (49.4 A ⋅ 3)
= 145.4 V
eff L-N
U
r
= RP.120 ⋅ IN
= 0.8 Ω ⋅ 49.4 A
= 39.5 V
eff L-N
U
x
= 2 ⋅ π ⋅ F-N ⋅ LP ⋅ IN
= 2 ⋅ π ⋅ 57 Hz ⋅ 0.0075 H ⋅ 49.4 A
= 132.69 V
eff L-N
U-N = 394 V
eff (L-L)
Rated speed
N-N in [mm/s]
N-N: 2666
Calculation from data sheet value v
MAX,FN
N-N = (1000 mm/m) ⋅ V
MAX,FN
/ (60 s/min)
= (1000 mm/m) ⋅ (160 m/min) / (60 s/min)
= 2666 mm/s
Note: Other meaning than for rotating motors!
Rated frequency
F-N in [Hz]
F-N: 57
Calculation from V-N, distance per electrical period
(see entry in STR column)
F-N = N-N ⋅ (1000 µm/mm) / (distance per elec. period
[µm])
F-N = (2666 mm/s) ⋅ (1000 µm/mm) / (46 000 µm)
= 57 Hz
U-N 3 U
e
U
r
+()
2
U
x
2
+⋅=