Siemens SINUMERIK 840D Function Manual page 614

P5: Oscillation
15.6 Data lists
$AC_PATHN
$AA_LOAD[<axial expression>]
$AA_POWER[<axial expression>]
$AA_TORQUE[<axial expression>]
$AA_CURR[<axial expression>]
$AC_MARKER[<arithmetic_expression>] (int)
$AC_PARAM[<arithmetic_expression>] (real)
$AA_OSCILL_REVERSE_POS1
[<axial expression>] (real)
$AA_OSCILL_REVERSE_POS2
[<axial expression>] (real)
Conditions
Conditions for motion-synchronous actions are formulated:
Main run variable comparison operator expression
For details, see:
Further information
Function Manual Synchronized Actions
614
(Path parameter normalized) (real)
Normalized path parameter: 0 for beginning of block
to 1 for end of block
Drive utilization
Drive efficiency in W
Drive torque setpoint in Nm
Actual current value of axis
Flag variables: Can be used to set up complex con‐
ditions in synchronized actions:
8 bit memories (Index 0 - 7) are available.
Reset sets the bit memories to 0.
Example:
WHEN .....DO $AC_MARKER[0]=2
WHEN .....DO $AC_MARKER[0]=3
WHEN $AC_MARKER[0]==3 DO $AC_OVR=50
Can be read and written independently of synchro‐
nous actions in the parts program:
IF $AC_MARKER == 4 GOTOF SPRUNG
Floating-decimal parameter for synchronous ac‐
tions. Serves as intermediate saving and evaluation
in synchronous actions.
50 Parameters (Index 0 - 49) are available.
current oscillation reversal points 1 and 2:
The current setting data from
$SA_OSCILL_REVERSE_POS1 or
$SA_OSCILL_REVERSE_POS2 is read.
This enables setting data changes at the reversal
positions during active oscillation, i.e. during an ac‐
tive synchronous action.
Function Manual, 06/2019, A5E47437747B AA
Axes and spindles