Siemens SINUMERIK 840D sl Function Manual page 919

Activate original coupling parameters
Language instruction "COUPRES" can be used to re-activate the configured coupling
parameters.
COUPRES (FS, LS)
The parameters modified using COUPDEF (including the speed ratio) are subsequently
deleted.
Language instruction "COUPRES" activates the parameters stored in the machine and setting
data (configured coupling) and activates the default settings (user-defined coupling).
Programmable block change
It is possible to mark a point in the NC program using the "WAITC" language instruction.
The system waits at this point for fulfillment of the synchronism conditions for the specified
FS and delays changes to new blocks until the specified state of synchronism is reached.
WAITC (FS)
Advantage: The time between activating the synchronous coupling and reaching
synchronism can be used in a meaningful way, technologically speaking.
Note
Basically, it is always possible to write WAITC. If the spindle indicated is not active as FS,
the instruction for this spindle is without effect.
If no synchronism condition is indicated, the check is always performed for the synchronism
condition programmed/configured on the respective coupling, at least for the setpoint
synchronism.
Examples:
WAITC(S2),
:
WAITC(S2, "Fine"),
:
WAITC(S2, ,S4, "Fine")
Stop and block change
If "Stop" has been activated for the cancellation period of the axis enables for the leading or
following spindle, then the last setpoint positions with the setting of the axis enables from the
servo drive are approached again.
Program instructions COUPON and WAITC can influence the block change behavior. The
block change criterion is defined using COUPDEF or via the MD21320
$MC_COUPLE_BLOCK_CHANGE_CTRL_1.
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Synchronous Spindles (S3)
Programming of synchronous spindle couplings
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