HEIDENHAIN TNC 620 (340 56x-03) - Manual (Page 37)

HEIDENHAIN TNC 620 37
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-On
1.2 Machine Switch-On
Acknowledging the power interruption and
moving to the reference points
U 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 interruption."
U Press the CE key: The TNC compiles the PLC
program
U Switch on the control voltage: The TNC checks
operation of the emergency stop circuit and goes into
the reference run mode
U 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 392
„ Operating modes: See "Programming and Editing" on page 63
Switch-on and crossing the reference points can vary
depending on the machine tool. Your machine manual
provides more detailed information.