Heidenhain TNC 620 (81760x-01) ISO programming User Manual Page 398

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Manual operation and setup
14.1 Switch-on, switch-off
14
398
TNC 620 | User's Manual for DIN/ISO Programming | 3/2014
14.1 Switch-on, switch-off
Switch-on
Switch-on and crossing over the reference points can
vary depending on the machine tool.
Refer to your machine manual.
Switch on the power supply for TNC and machine. The TNC then
displays the following dialog:
SYSTEM STARTUP
TNC is started
POWER INTERRUPTED
TNC message that the power was interrupted—
clear the message
COMPILE A PLC PROGRAM
The PLC program of the TNC is automatically compiled
RELAY EXT. DC VOLTAGE MISSING
Switch on external dc voltage. The TNC checks the
functioning of the EMERGENCY STOP circuit
MANUAL OPERATION
TRAVERSE REFERENCE POINTS
Cross the reference points manually in the
displayed sequence: For each axis press the
machine START button, or
Cross the reference points in any sequence: Press
and hold the machine axis direction button for each
axis until the reference point has been traversed
If your machine is equipped with absolute encoders,
you can leave out crossing the reference marks.
In such a case, the TNC is ready for operation
immediately after the machine control voltage is
switched on.
The TNC is now ready for operation in the Manual Operation mode.
The reference points need only be crossed if
the machine axes are to be moved. If you intend
only to edit or test programs, you can select the
Programming and Editing or Test Run modes of
operation immediately after switching on the control
voltage.
You can cross the reference points later. by pressing
the PASS OVER REFERENCE soft key in the Manual
Operation mode.
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