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Controller unit
Controller unit
Due to the very short cycle times of the position, speed and
current controllers, the controller units from HEIDENHAIN are
equally suited for conventional drives, for direct drives (linear
motors, torque motors) and for HSC spindles. They permit a high
loop gain and short reaction times to changing machining forces,
and so make the high contour accuracy and surface quality of the
workpiece possible.
Single speed
Double speed
Single-speed control loops are usually sufficient for linear or
torque motors and for conventional axes. Double-speed control
loops are preferred for HSC spindles and axes that are difficult to
control (Option 49). In the default setting, all axes are set to single
speed. Each axis that is switched from single speed to double
speed can reduce the number of available control loops by one.
PWM frequencies greater than 5 kHz require double-speed control
loops, for which option 49 must be enabled.
Cycle times
Speed controllerAt f
PWM
Current controller
Single-speed Double-speed
Position controller
3333 Hz 150 µs 300 µs 150 µs
4000 Hz 125 µs 250 µs 125 µs
5000 Hz 100 µs 200 µs 100 µs
6666 Hz
1)
75 µs 150 µs 150 µs
8000 Hz
1)
60 µs 125 µs 125 µs
10 000 Hz
1)
50 µs 100 µs 100 µs
Same as speed
controller
1)
Possible only with option 49
Number of control
loops
The number of enabled control loops depends on the SIK (see
Main computer), or on additionally enabled control loops, which
can also be ordered as needed later.
Versions
•
Modular CC 61xx controller units with PWM interface to the
inverters
•
Compact UEC/UMC inverters with integrated controller unit
Controller units, main computers and inverters operate in any
desired combination.
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