HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 19)

TNC 425/TNC 415 B/TNC 407 1-18
1 Introduction
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1.3 Switch-on
The switching on and traversing of reference marks are machine tool dependent functions. See your machine tool
manual.
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 automatically translated.
RELAY EXT. DC VOLTAGE MISSING
Switch on the control voltage.
The TNC checks the function of the EMERGENCY OFF button.
MANUAL OPERATION
TRAVERSE REFERENCE POINTS
Move the axes in the displayed sequence across the reference marks:
For each axis press the START key. Or
Cross the reference points in any direction:
Press and hold 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 marks 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 immediately after switching on the control
voltage. The reference marks can then be traversed later by pressing the PASS OVER
REFERENCE soft key in the MANUAL OPERATION mode.
The reference point of a tilted coordinate system can be traversed by
pressing the machine axis direction buttons. The "tilting the working plane"
function (see page 2-11) must be active in the manual operating mode.
The TNC then interpolates the corresponding axes. The NC START key
has no function and if it is pressed the TNC will respond with an ERROR
message. Make sure that the angular values entered in the menu
correspond with the actual angle of the tilted axis.