Signals From Axis/Spindle (Db31; Synchronous Spindles (S3); Signals To Axis/Spindle (Db31 - Siemens SINUMERIK 840D sl Function Manual

19.12.2

Signals from axis/spindle (DB31, ...)

DB31, ...
DBX74.4 Monitoring status with modulo rotary axes
Edge evaluation: No
Signal state 1 or Traversing range limitation for modulo rotary axes active
edge change 0 → 1 (software end switches, work field limitations).
Signal state 0 or Traversing range limitation for modulo rotary axes not active.
edge change 1 → 0
Signal irrelevant Linear axes / rotary axes without modulo functionality.
for ...
Application exam‐ Built-on rotary axis with monitoring
ple(s)
19.13

Synchronous Spindles (S3)

19.13.1

Signals to axis/spindle (DB31, ...)

DB31, ...
DBX31.5
Edge evaluation: No
Signal state 1 or edge
change 0 → 1
Signal state 0 or edge
change 1 → 0
Corresponding to ....
19.13.2 Signals from axis/spindle (DB31, ...)
DB31, ...
DBX84.4
Edge evaluation: No
Signal state 1 or edge
change 0 → 1
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Signal(s) updated: Cyclic
Disable synchronization
Signal(s) updated: Cyclic
The synchronization motion for the following spindle is not disabled from the PLC.
The position offset is not suppressed and applied as in earlier versions.
The synchronization motion for the following spindle is disabled from the PLC.
A synchronization motion specified via offset programming is suppressed for the following
spindle. The following spindle does not execute any additional movement.
DB31, ... DBX98.1 (Synchronism coarse)
DB31, ... DBX98.0 (Synchronism fine)
Synchronous mode
Signal(s) updated: Cyclic
The spindle is operating in "Synchronous operation" mode. The following spindle thus follows
the movements of the leading spindle in accordance with the transmission ratio.
The monitoring functions for coarse and fine synchronism are implemented in synchronous
operation.
Note:
The signal is set only for the machine axis which is acting as following spindle
(IS "FS active" = 1)
Z2: NC/PLC interface signals
19.13 Synchronous Spindles (S3)
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