HEIDENHAIN TNC 407 (280 580) ISO Programming - Manual (Page 37)

TNC 426/TNC 425/TNC 415 B/TNC 407 1-19
1 Introduction
X Y
CE
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407
1.3 Switch-On
Switch-on and traversing the reference points can vary depending on the individual machine tool. Your machine
manual provides more information on these functions.
Switch on the TNC and machine tool. The TNC automatically initiates the
following dialog:
MEMORY TEST
The TNC memory is automatically checked.
POWER INTERRUPTED
TNC message indicating that the power was interrupted.
Clear the message.
TRANSLATE PLC PROGRAM
The PLC program of the TNC is translated automatically.
RELAY EXT. DC VOLTAGE MISSING
Switch on the control voltage.
The TNC checks the EMERGENCY OFF circuit.
MANUAL OPERATION
TRAVERSE REFERENCE POINTS
Move the axes over the reference marks in the displayed sequence:
For each axis press the START key, or
Cross the reference points in any sequence:
Press the machine axis direction button for each axis,
until the reference point has been traversed.
The TNC is now ready for operation in the
MANUAL OPERATION mode.
The reference points need only be traversed if the machine axes are to be moved. If you intend only to write, edit
or test programs, you can select the PROGRAMMING AND EDITING or TEST RUN modes of operation immedi-
ately after switching on the control voltage. The reference points can then be traversed later by pressing the
PASS OVER REFERENCE soft key in the MANUAL mode of operation.
Traversing reference points with a tilted working plane
In a tilted coordinate system, the reference points are traversed by
pressing the machine axis direction buttons. To enable this function, set
TILT WORKING PLANE to ACTIVE in the MANUAL OPERATION mode
(see page 2-26). The TNC then interpolates the tilted axes as soon as the
corresponding axis direction buttons are pressed.
The NC START key is disabled; pressing this key will display an error
message.
The angular values entered in the menu must correspond to the actual
angle of the tilt axis.