CHAPTER 8: OPERATION
ALPHA ST 320
8-8
3.1.4 F4 : End of Bar Position
E N D O F B A R P O S I T I O N :
# ( 0 ) F 4:
Set F4 to the end of bar position. The bottom middle value shows the current pusher position. The bottom
left value shows the number of pieces that can be produced with the setting of the end of bar position.
Usually, the end of bar position is adjusted as closely as possible behind the clamping system of the lathe
(approx. 5mm behind the jaws or collet pads). This will provide minimum bar stock remnant.
3.1.5 F5 : Top-Cut Position : Now
T O P - C U T P O S I T I O N :
N O W : F 5
F5: Set to the distance between the length measurement device (Fig. 17.1, SQ1) and the Top Cut
position in the lathe.
NOW (read only): Distance between the current bar end and the length measurement device. If the bar
has not yet passed the length measurement device the value is 0.
Setting Procedure:
In manual mode load a new bar and feed it into the spindle. Manually position the bar to the top cut
position. Then copy the value of NOW to F5.
3.1.6 F6 : Front Rest : Now
F 6 : A N T I - V I B R R S T :
N O W : ( O P T I O N )
The antivibration device must be opened before the pusher reaches it.
F6 Anti-Vibration Rest: Pusher position at which the antivibration device is opened.
Region: Pusher position at which the optional second antivibration unit must be opened.
Region (read only): Current pusher position.
3.1.7 Too Short / Too Long
T O O S H O R T
F 7 : T O O L O N G
The bar feeder has the capability to check every part length and to signal an alarm message if the part is
too short or too long.
Too Short: “0”, no underfeeding (too short) alarm.
“1”, alarm will occur in case of underfeeding.
F7: Too Long: “0”, no overfeeding (too long) alarm.
“1”, alarm will occur in case of overfeeding.
To Next Page
Loading...
