HEIDENHAIN TNC 306 Technical Manual - Manual (Page 487)

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TNC 416/TNC 406/TNC 306
3/99
Software version 8 for the TNC 406 was released in March 1999.
• New machine parameter MP331
MP331.0-4 Distance per number of signal periods out of MP332
Input: 0.001 to 99 999.999 [mm or °]
• New machine parameter MP332
MP332.0-4 Number of signal periods in the distance from MP331
Input: 1 to 16 777 215
• New machine parameter MP334
MP334.0-4 Distance between reference marks for encoders with distance-coded reference
marks
Input: 0 to 65535 [grating periods]
0=1000 grating periods (standard setting)
• New “Restore Position” function
After pressing the “manual” soft key to switch to manual operation, you can now use the
handwheel to move axes in the stopped condition (NC stop, internal stop). With the then
available “Restore position” soft key and the NC start key you can return to the starting position
in the sequence determined via soft key. Then you can resume machining by pressing the NC
start key.
• Cycle 16 has been changed
To reduce the risk of collision, in Cycles 16 when PAT 4 or 5 is entered, the electrode is now
retracted first on the erosion path and then to the starting point.
• Key codes are available for RR, RL, CL PGM, and EXT (already in version 07).
RR = $1BE
RL = $1BF
EXT = $1CD
CL PGM = $1CC
• New word W586
The analog voltage on analog output 6 (X8 Pin 8) is determined by the value in word W586.
The value is to be entered in mV, i.e., the value range is +/– 10 000 mV, which is +/– 10 volts.
• New marker M2187 (already in version 07)
The error messages “gross positioning error ...” and “measuring system defective...” are now
no longer shown blinking. The machine is switched off through EMERGENCY STOP, and M2191
(emergency stop) and M2187 (control loop error) are set. Pressing the CE key after the
emergency stop circuit is closed clears the error message. When the "measuring system
defective..." error occurs, the control makes a reference run after the error message is
acknowledged.