Siemens sinumerik 840D sl Function Manual page 601

Detailed description
2.1 Speed/torque coupling, master-slave (SW 6 and higher)
Control system response
The control system response on POWER ON, mode changes, RESET, block searches and
Repos is as follows:
• A master-slave coupling activated via PLC or MASLON instruction is retained after a mode
• MASLON / MASLOF/ MASLOFS becomes effective on block search. Changes in the
2.1.7 Response on activation/deactivation
Activating/deactivating during axis standstill
Activation/deactivation is not active until the axis next comes to a standstill. If the
specification is changed, the sequence is the same as for axis replacement. The coupling is
closed when the axis comes to a standstill. The coupled axes must be in feedback control
mode.
Figure 2-7
Block stepping is halted for MASLON until the coupling has actually been closed. During this
time, the associated channel operating message "Master-slave switchover inactive" is
displayed on the MMC/HMI.
Activation/deactivation during motion, SW 6.4 and higher
Activation/deactivation of the coupling in motion has been implemented only for spindles in
speed control mode. For axes and spindles in positioning mode, switchover is still carried out
when the axis is at a standstill.
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change, RESET or end of part program.
positions of coupled slave axes and spindle speeds must be computed separately by the
user (see "Block search", Chapter "Response in conjunction with other functions").
Activation procedure
Special functions: Speed/Torque Coupling, Master-Slave (TE3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0