Siemens SINUMERIK 840D sl Function Manual page 613

Axis Reference axis of the speed set‐
point coupling
MD37250 = value
Value
AX3 1
AX4 1
Figure 16-3
Example 2 (840D sl): Dynamic coupling with 1x4 and 2x2 axes grouped in pairs
Assumption regarding machine axes:
● 1st to 4th machine axis: AX1, AX2, AX3, AX4
Dynamic coupling for all slave axes:
● MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE[AX2] = 0
● MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE[AX3] = 0
● MD37262 $MA_MS_COUPLING_ALWAYS_ACTIVE[AX4] = 0
For a dynamic coupling, the master axis specified when defining the coupling (MASLDEF) is,
as standard, the reference axis for speed setpoint coupling and torque equalization control.
The definition of reference axis AX3 for the torque equalization control of the 3rd slave axis
AX4 is required for the application "1x4 axes" where the following machine data is set:
MD37253 $MA_MS_FUNCTION_MASK[AX4], Bit 1 = 1 (see part program)
Axis Reference axis of the speed set‐
point coupling
MD37250 = value
Value
AX1 0
AX2 0
AX3 0
AX4 0
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Reference axis of the torque equal‐
Description Value
Master axis, AX1
Master axis, AX1
Example 1: Torque equalization control in pairs
Reference axis of the torque equal‐
Description Value
No reference axis
No reference axis
No reference axis
No reference axis
TE3: Speed/torque coupling, master-slave
ization controller
MD37252 = value
Description
0 No reference axis
3 2nd slave axis, AX3
ization controller
MD37252 = value
Description
0 No reference axis
0 No reference axis
0 No reference axis
3 Machine axis AX3
16.5 Tension torque
Input of the torque equalization
contr.
MD37254 = value
Value Description
3 No input
0 Master and slave
Input of the torque equalization
contr.
MD37254 = value
Value Description
0 Master and slave
0 Master and slave
3 No input
0 Master and slave
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