Spindle Advance/Reverse; Tool Change - Siemens SINUMERIK 808D User Manual

Note
If the feedrate override weighting is set to "0", any type of axis movement is blocked.
With the revolutional feed and cutting speed settings, the feed is blocked until the spindle reaches the setpoint speed.
4.2.5

Spindle advance/reverse

Functionality
NOTICE
Start spindle
The spindle value should be checked before starting the spindle (for example, when changing the tool).
The last value set is active (this depends on the machinery construction of a machine manufacturer).
You start the spindle in the appropriate direction (spindle advance/reverse) by changing over the spindle direction switch:
Note
The spindle cannot be started, unless the chuck guard switch is enabled. Close the chuck guard.
NOTICE
Do not alter the chuck guard
Do not alter or adjust the chuck guard/chuck guard switch.
When the spindle is switched off, it brakes and comes to a halt. If a spindle brake is fitted, it is applied. If there is no spindle
brake or it is switched off, the spindle can be rotated freely once it has stopped.
The programmed spindle speed can be controlled by means of an appropriate spindle override switch setting (for example,
50 %).
4.2.6

Tool change

Functionality
A basic differentiation must be made between a manual and an automatic tool-changer system.
For an automatic system, the tool change is controlled by the PLC user program. The currently loaded tool is displayed in
the MM+ main screen.
For a manual system, the required tool number is manually entered from an input screen form.
Note
The following display machine data define the display:
MD290 CTM_POS_COORDINATE_SYSTEM
•
– = 0 -> Position of the tool after the turning center
– = 2 -> Position of the tool before the turning center (refer to the figure above)
MD1104 TOOL_CHG_MANUALMODE_MA
•
– = 0 -> Editing of the "T" and "D" fields is not possible, the fields are grayed out
– = 1 -> Editing of the "T" and "D" fields is possible
Programming and Operating Manual (Manual Machine Plus (MM+), Turning)
01/2017
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