HEIDENHAIN TNC 415 (259 9x0) Service Manual - Manual (Page 202)

Function MP
No. Bit
A B C Input AE-6
Entry value
Time constant of armature 1) X
Y
Z
IV
V
S
2290.0
2290.1
2290.2
2290.3
2290.4
2290.5 -
-
-
-
-
- -
-
-
-
-
- Š
Š
Š
Š
Š
Š
0 to 10 000[ms]
Example: Calculation of time constant of the armature from the motor
parameters of the SIEMENS spindle motor 1PH6107-4GN4
SIEMENS motor parameters:
P164 = nom. frequency = 68.9 Hz
P168 = resistance of armature (cold) = 157 m
Ω
P170 = leakage reactance of armat. = 785 m
Ω
P171 = reactance of main field = 12 090 m
Ω
MP2290 =
[ ] [ ]
[ ] [ ]
(P171 m P170 m 1000
2 P164 Hz P168 m
Ω Ω
Π Ω
+ ⋅
⋅ ⋅ ⋅
[
ms
]
=
=
(12090 785) 1000
2 68,9 157
+ ⋅
⋅ ⋅ ⋅ Π
[
ms
]
= 189
[
ms
]
0
0
0
0
0
0
Nominal value of motor 1)
(reference value for "utilization"
display and for I²t monitoring)
X
Y
Z
IV
V
S
2300.0
2300.1
2300.2
2300.3
2300.4
2300.5 -
-
-
-
-
- -
-
-
-
-
- Š
Š
Š
Š
Š
Š
0 to 100.000[A]
MP 2300 is used to calculate the l²t monitoring and the utilization
display (modules 9160 and 9166) 0
0
0
0
0
0
Maximum current 1)
of motor
X
Y
Z
IV
V
S
2310.0
2310.1
2310.2
2310.3
2310.4
2310.5 -
-
-
-
-
- -
-
-
-
-
- Š
Š
Š
Š
Š
Š
0 to 100.000[A p ]
The speed controller limits the maximum current to the minimum
value of MP2110 and MP2310.
0
0
0
0
0
0
reserved 2320.x - - Š entry value 0 0
reserved 2330.x - - Š entry value 0 0
1) entry values depending on the motor: see table 2 on page 21.1
R H
1.0 TNC
415B/425/426 Machine Parameters MP 2290.0 - MP 2330.x 06.03.95 5.2 24