Signals For Synchronous Mode To Spindle - Siemens SINUMERIK 880 SW 6 Planning Manual

01.93
SYNCHRONISM COARSE
1 signal: The positional deviation between the following spindle and its leading spindle is
within the "Synchronism coarse" tolerance band.
0 signal: The positional deviation between the following spindle and its leading spindle is
outside the "Synchronism coarse" tolerance band.
Notes:
• The tolerance band is determined by the offset angle between the leading and following
spindles and by the "Synchronism coarse" tolerance MD 9x3 (x = 5, 7, 9 for following
spindle 1, 2, 3).
• If no defined angular offset has been programmed with G201, the offset angle that was
valid when the synchronous mode was selected is used to check synchronism.
• The signal is of significance only to the following spindle in synchronous mode.
Examples of application:
• Clamping of the workpiece in the following spindle when transferring from the leading
spindle. Clamping is not effected until the spindles are sufficiently in synchronism.
• This signal can be used in conjunction with parting monitoring. The workpiece is clamped
in following and leading spindles. After the parting operation a defined angular offset
between the leading and following spindles is programmed.
If the parting operation was unsuccessful the angle cannot be accepted. The positional
deviation becomes too great and the signal is not set.
8.5

Signals for synchronous mode to spindle

CALCULATE NEW K
Ü
0/1 transition: The speed ratio K
recalculated.
1/0 transition: No effect.
Notes:
• The speed ratio K is calculated from the speed ratio parameters; these must be entered
Ü
as setting data (SD x4, x5, x = 1, 2, 3 for following spindle 1, 2, 3).
• The NC sets the NEW K
ratio without error. Otherwise, the NC sets the NEW K
alarm.
• The PLC user program must reset the signal to 0 once the NC has calculated the new
speed ratio.
• The NEW K CALCULATED signal is reset when the calculation is initiated. This is
Ü
generally performed, however, by the "Activate new K
• The speed ratio calculation can also be initiated by setting the relevant setting data bit.
• The new speed ratio is put into effect by setting the ACTIVATE NEW K
©
Siemens AG 1991 All Rights Reserved
SINUMERIK 880, (PJ)
between the following spindle and its leading spindle is
Ü
CALCULATED signal if it was possible to calculate the speed
Ü
6ZB5 410-0HE02
8 Spindle/PLC Interface (DB 31)
8.4 Signals for synchronous mode from spindle
DW L + 24, Bit 0
DW L + 25, bit 15
DEFECTIVE signal and issues an
Ü
" command.
Ü
signal.
Ü
–
8 33