Close/Separate Coupling Via Part Program; Release The Mechanical Brake - Siemens SINUMERIK 840D sl Function Manual

Typical sequence of operations
Action
• Approach coupling position
• Close coupling mechanically
• Request to close the coupling
• Read back coupling state
• Moving the master-slave group
12.9.3

Close/separate coupling via part program

This application allows you to close or separate a master-slave coupling between the
machine axes AX1=Master axis and AX2=Slave via the part program.
Preconditions
• A configured master axis MD37250 0 0.
• Not a static master-slave coupling:
MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE= 0
• The coupling is open.
Parts program
Program code
N10 G0 AX1=0 AX2=0
N20 MASLON (AX2)
N30 AX1=100
N40 MASLOF (AX2)
N50 AX1=200 AX2=200
N60 M30
12.9.4

Release the mechanical brake

This application allows implementation of a brake control for machine axes AX1=Master axis
and AX2=Slave axis in a master-slave coupling.
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
TE3: Speed/torque coupling, master-slave
Effect/comment
Each axis moves to the coupling position.
Both axes are mechanically coupled to one
another.
PLC interface signal "Master/slave on" DB32, ...
DBX24.7 is set.
When the axis is at a standstill, the coupled slave
axis sets PLC interface signal "Master/slave
active" DB32, ... DBX96.7 and clears "Position
controller active" DB32, ... DBX61.5.
Wait for checkback signal.
The master axis is moved.
Comment
; Approach the coupling position on an axis-for-axis basis
; (mechanically connect the axes)
; Close the coupling.
; Move the master-slave group using the master axis.
; Open the coupling.
; (Mechanically separate the axes)
; Move the axes separately.
12.9 Examples
533