April 2013 1.5 New functions 33
Notes on the adaptive control functions
• Only axes that are controlled by the same DSP can be compensated
with each other for software option 141 (CTC). This means that such
axes cannot be distributed to multiple controller units.
• Up to five controller parameters can be changed by each of the two
options PAC and MAC. A controller parameter must be changed either
by PAC or by MAC, and not by both PAC and MAC.
Default tool axis for test run
When an NC program is started in the Test Run operating mode, a default
tool axis is now set. It is taken from the ToolAxis entry (permitted tool axis)
of the kinematics active in the test run.
The number of variables in the kinematic temperature compensation
has been increased
PLC words can be entered as variables in the kinematic temperature
compensation ("TEMPCOMP" column of the kinematics table) and in the
kinematic axis-error compensation (columns C1 to C6 of compensation
value tables).
The number of maximum permitted variables has been increased from 32
to 64.
Switching between rapid-traverse and feed-rate potentiometers
When an NC program was run, no new block was started if an OEM-specific
rapid-traverse potentiometer was used for changing from machining feed
rate to FMAX or vice versa, and the newly activated potentiometer was set
to 0 %. Now a new block is started and the distance-to-go display shows the
values of the new NC block.
HR 550FS wireless handwheel
The communication between the wireless handwheel and the control was
improved so that it is now less sensitive to interference in the radio
connection.
PLC output to be set after shut-down (MP4044) now also on machine
operating panel
The 24 V outputs of HSCI machine operating panels (X7) can be used for the
switch-off function of a machine. Until now, only the single-channel outputs
of a PL 62xx could be used.
However, the following must be kept in mind:
• The maximum current of an output on a machine operating panel is
limited to 150 mA (500 mA with the PL 62xx).
• Galvanic isolation of the PLC supply must be ensured. The machine
operating panels and their outputs are supplied with +24 V NC.
Modified handling of the spindle during LIFTOFF due to power failure
If the DC-link voltage falls below the threshold of 450 V, the spindle is
decelerated to feed energy into the DC-link. Until now the spindle was
accelerated again once the DC-link voltage exceeded the threshold of 450 V.
Now the spindle is decelerated until the DC-link voltage has risen above
500 V. Then the spindle speed is maintained. This process can be repeated
as often as necessary if the DC-link voltage falls below the threshold of
450 V.
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