6 – 498 HEIDENHAIN Technical Manual TNC 426, TNC 430
7
77
7 Calculate MP2620.x:
In the event that the motor cannot be driven at the rated speed:
7
77
7 Measure I NOMINAL at maximum speed (rapid traverse) and calculate the
current at rated speed as follows:
I
nmax
: Current at rapid traverse
n
max
: Shaft speed at rapid traverse
MP2620.x
I NOML
1
I NOML
2
–
2
------------------------------------------------------------=
MP2620.x
I
nmax
MP2610.x–()<rated rpm>⋅
n
max
------------------------------------------------------------------------------------------ MP2610.x+=
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