HEIDENHAIN iTNC 530 HSCI - Page 1141

July 2013 7.12 Determining entries for motor tables 1141
No-load voltage at rated velocity
U0 in [V
eff
] interlinked
U0: 252
Calculation from V-N and data sheet value k
F,3
U0 = N-N / (1000 mm/m) ⋅ (k
F,3
/ 3) ⋅ √3
= 2.66 m/s ⋅ (164 N/A / 3) ⋅ √3
= 252 V
eff
L,L
No-load current
I0 in [A
eff
] winding
I0: 0
Primary winding resistance at 20 °C
R1 in [mΩ] at 20° C
R1: 600
Calculation from data sheet value R
P,20
R1 = R
P,20
⋅ 1000
= 0.6 Ω ⋅1000
= 600 mΩ
Rotor resistance at 20 °C
R2 in [mΩ] at 20° C
R2: 0
Primary winding leakage reactance at F-N
Xstr1 in [mΩ]
Xstr1: 0
If nothing given, then zero.
Rotor leakage reactance at F-N
Xstr2 in [mΩ]
Xstr2: 0
Magnetizing reactance XH for F-N at rated
conditions
XH in [mΩ]
XH: 2685
Calculation from F-N and data sheet value L
P
XH = 2 ⋅ π ⋅ F-N ⋅ L
P
= 2 ⋅ π ⋅ 57 Hz ⋅ 7.5 mH
= 2685 mΩ
Desaturation velocity
N-XH in [min
–1
]
N-XH: 0
Rotational speed of beginning field
weakening range
N-FS [min
–1
]
N-FS: 0
Max. velocity (mechanical)
N-MAX in [mm/s]
N-MAX: 2666
Calculation from data sheet value v
MAX,FN
N-MAX= 160 m/min ⋅ (1000 mm/m) / (60 s/min)
= 2666 mm/s
Note:
Other meaning than for rotating motors!
Saturation factor
%-XH in %
%XH: 100
Stalling torque reduction factor
%-K in %
%-K: 100
Number of pole pairs (PZ) = 1 per definition
PZ: 1
Temperature coefficient of the primary
winding
TK in 1/K
TK: 0.004
Values in the HEIDENHAIN motor table Values from the motor data sheet