HEIDENHAIN iTNC 530 HSCI - Machine Parameters

21 – 330 HEIDENHAIN Service Manual iTNC 530 HSCI
21.1.2 Machine parameters
Connecting the
digital axes and
spindles
MP100 is read from the right to the left and contains the information which axis is the first, the second,
the third, etc.
In MP108 you can see the assignment of the axes to the controller basic boards.
In MP109 you can see the assignment of the spindles to the controller basic boards.
MP120 contains the assignment of the axes to the PWM/motor outputs (connector X51 and
following / connector X80 and following).
MP121 contains the assignment of the spindles to the PWM/motor outputs (connector X51 and
following / connector X80 and following).
Index y of the
MP2xxx.y group
To find the correct machine parameters in the MP2xxx.y group, call the machine parameters MP130
(axes) and MP131/132 (spindles). Here you find the assignments of the axes/spindles to the
respective indexes 'y' of the MP2xxx.y group.
Single and double-
speed control loops
With CC 61xx and UEC 11x the OEM has the possibility of installing single-speed and double-speed
control loops.
Single-speed control loops are used for, e.g.:
 Spindles
 Conventional axes
Double-speed control loops are used for, e.g.:
 Linear motors
 Torque motors
 High-frequency spindles
 "Axes that are difficult to control"
Double-speed control loops operate with shorter cycle times and higher processing power. If double-
speed control loops are configured, the adjacent PWM outputs or motor outputs are not active,
since in this case the DSP (digital signal processor) only processes one double-speed channel instead
of two single-speed channels.
Single and double-speed control loops are defined in the MP2000.
PWM frequency With the MP2180 the control loops can be assigned different PWM frequencies.
There are three fundamental PWM frequencies: 3333 Hz, 4000 Hz and 5000 Hz. A control loop can
be operated at the fundamental PWM frequency or at double (6666 Hz, 8000 Hz and 10000 Hz) this
frequency.
If a control loop is operated at double the fundamental PWM frequency, the current controller cycle
time is halved. However, this is possible only with double-speed control loops.
In a configuration with double-speed control loops and higher PWM frequencies the adjacent PWM
outputs are not active!
Attention
MP100 must not be changed!
Note
The input value (0 ... 3) represents the HSCI address of the respective controller basic board.