Siemens SINUMERIK 840D sl Function Manual page 410

M3: Coupled axes
8.5 Generic coupling
● For coupled block changes (CPLNUM, CPLDEN, CPLCTID) in synchronized actions
● Resetting the setpoint synchronous operation because of missing enable signals for the
following spindle (emergency stop, alarm responses)
The DB31, ... DBX103.4/5 signals are reset when the monitoring is ended.
Boundary conditions
Exclusion conditions
No monitoring is performed in the following cases:
● MD37202 or MD37212 = 0.
● Speed coupling is active (CPLSETVAL="CMDVEL").
● DB31, ... DBX31.5 (inhibit synchronization of the FS) = 1
● Rapid stop of the following axis/spindle or one of the active leading axes/spindles.
● SERUPRO or block search is active.
● For channel-related run-in when the following axis/spindle or an active leading axis/spindle
does not really move.
● DB31, ... DBX63.3 (axis/spindle disable active) = 1 for the following axis/spindle or for one
of the active leading axes/spindles.
"Track the synchronous operation deviation" is active
Monitoring is suspended while the "track the synchronous operation deviation" function is
active (DB31, ... DBX31.6 = 1; see "Tracking the deviation from synchronism (Page 434)").
Synchronous operation monitoring level 2 for the traditional coupling types
For the traditional coupled motion, master value coupling, electronic gearbox and synchronous
spindle coupling types, the "stage 2 synchronous operation monitoring" is available only with
the CP adaptive cycles (see "Adaptive cycles (Page 418) ").
Example
Program code
G0 Z–300 X50
CPDEF=(S2) CPLA=(S1) CPLNUM=2 CPLDEN=1
CPBC="FINE"
M3 S2000
CPON=(S2) CPLA=(S1) CPSYNCOP2[X]=1.6
CPSYNFIP2[X]=0.8
X20
G1 Z–200
CPOF=(S2)
410
Comment
; Gear ratio in accordance with tool.
; Block change is performed on reaching "fine synchronous
operation".
; Synchronous operation monitoring stage 2 is also activa-
ted
; (tolerances: coarse 1.6, fine 0.8).
; Machining block, material removal.
; Synchronous operation determines the quality.
; Deselect coupling, deactivate the monitoring function.
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions