Synchronization - Siemens SINUMERIK 802D sl Function Manual

Special features
● The feed override switch is active.
● RESET does not terminate the axis mode per default.
● IS "Spindle / no axis" (V390x 0000.0) is set to zero.
● Axis mode can be activated in all gear stages.
● The gear stage cannot be changed when the axis mode is active.
● In axis mode, the MD of the set of parameters with index zero are effective in order to
20.3

Synchronization

Why synchronize?
The control must be synchronized with the position measurement system on the spindle so
that the control knows the exact 0 degree position when switched on. Only a synchronized
spindle is capable of thread cutting or positioning.
For axes, this process is referred to as referencing, see Chapter "Reference Point Approach
(R1)".
Installation position of the position measurement system
● Directly on the motor in combination with a BERO proximity switch on the spindle (zero
● Directly on the spindle
● Above the measuring gearbox plus BERO switch on the spindle.
Synchronization possibilities
When the spindle is switched on, the spindle can be synchronized as follows:
● The spindle is started with a spindle speed (S function) and a spindle rotation (M3 or M4),
● Programming SPOS=... from various states (refer to Section "Spindle positioning mode")
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
carry out adaptation in this mode.
mark encoder)
and synchronized with the next zero mark of the position measurement system or with
the BERO signal. The 0 degree position is shifted by
MD34080 REFP_MOVE_DIST + MD34090 REFP_MOVE_DIST_CORR -
MD34100 REFP_SET_POS.
Note
Only use MD34080 for shifting the 0 degree position. Monitoring with MD34060
REFP_MAX_MARKER_DIST should be set to two spindle revolutions (720 degrees).
Spindle (S1)
20.3 Synchronization
351