HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 37)

HEIDENHAIN TNC 128 37
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n 1.2 Machine switch-on
Acknowledging the power interruption and
moving to the reference points
 Switch on the power supply for control and machine. The TNC
starts the operating system. This process may take several
minutes. Then the TNC will display the message "Power
interrupted" in the screen header
 Press the CE key: The TNC compiles the PLC
program
 Switch on the control voltage: The TNC checks
operation of the emergency stop circuit and goes into
the reference run mode
 Cross the reference points manually in the displayed
sequence: For each axis press the machine START
button. If you have absolute linear and angle encoders
on your machine there is no need for a reference run
The TNC is now ready for operation in the Manual Operation mode.
Further information on this topic
 Traversing the reference marks: See "Switch-on" on page 276
 Operating modes: See "Programming and Editing" on page 61
Switch-on and crossing the reference points can vary
depending on the machine tool. Your machine manual
provides more detailed information.