Reaction To Stop Signals And Commands (Cpmbrake) - Siemens SINUMERIK 840D sl Function Manual

Supplementary conditions
• When considering the synchronous operation difference, an active coupling cascade is not
taken into account. This means: if in the considered coupling module, the leading axis is a
following axis in another coupling module, the current actual or setpoint position is still
used as input variable for the calculation of the synchronous operation difference. This
synchronous operation difference therefore does not show the total synchronous
operation error of the cascade.
• If the leading axis is not a real axis, but a simulated axis, then the actual value is not
available for the synchronous operation monitoring of the actual value. In this case, the
modeled actual values (according to MD setting) are used.
5.5.5.16

Reaction to stop signals and commands (CPMBRAKE)

The response of the following axis to certain stop signals and commands can be defined with
the CP keyword CPMBRAKE.
Programming
Syntax:
Identifiers:
Functionality:
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
CPMBRAKE[FAx]= <value>
Coupling Mode Brake
CPMBRAKE is a bit-coded CP keyword, which defines the braking
behavior of the following axis FAx with reference to the following events:
Bit Event
0 Approaching the NC/PLC interface signal:
DB31, ... DBX4.3 (feed stop / spindle stop)
Note:
Bit 0 is significant only to "Free programming" coupling type
(CPSETTYPE=CP).
Value Meaning
0 The NC/PLC interface signal:
DB31, ... DBX4.3 (feed stop / spindle stop)
has no influence on the coupling.
1 The NC/PLC interface signal:
DB31, ... DBX4.3 (feed stop / spindle stop)
brakes the coupling group.
1 - 31 Reserved
The following rules apply for the programming:
• CPMBRAKE must be programmed in one block with CPDEF or CPON
( ⇒ can only be programmed for an inactive coupling).
• While defining a coupling, the following values are captured without
the explicit programming of CPMBRAKE: Bit 0=1
M3: Coupled axes
5.5 Generic coupling
309