Entering A Constant Cutting Rate (Sd43202) - Siemens SINUMERIK 840D Function Manual

SD43200 $SA_SPIND_S[<spindle>] (speed when the spindle is started via the PLC job
interface)
Writing a new speed value
In the following situations, a new speed value is written to the setting data:
● A speed setpoint is entered via NC program, synchronized action or FC18
Supplementary conditions:
– MD35035 $MA_SPIND_FUNCTION_MASK (Page 821), bit 4 == 1
– DB31, ... DBX84.0 == 0 (constant cutting rate)
● Writing the setting data to the NC program or synchronized action
● Writing the setting data via HMI (OPI) @@@
Supplementary conditions
Gear stage change
A gear stage change is not initiated if the setpoint speed is out of the speed range of the actual
gear stage.
Exceptions, see Chapter "M40: Automatic gear stage selection for speeds outside the
configured switching thresholds (Page 835)".
18.7.4.5

Entering a constant cutting rate (SD43202)

When starting a master spindle using a spindle job - and the "Constant cutting rate" spindle
speed type is active, then the spindle-specific value entered in the setting data becomes active
as constant cutting rate:
SD43202 $SA_SPIND_CONSTCUT_S[<spindle>] (cutting rate when the spindle starts via the
PLC job interface)
Writing a new cutting rate of value
In the following situations, a new constant cutting rate of the master spindle is written to the
spindle-specific setting data:
● A constant cutting rate is entered via NC program, synchronized action or FC18
Supplementary conditions:
– MD35035 $MA_SPIND_FUNCTION_MASK (Page 821), bit 8 == 1
– DB31, ... DBX84.0 == 1 (constant cutting rate active)
● Writing the setting data to the NC program or synchronized action
● Writing the setting data via HMI (OPI) @@@
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
S1: Spindles
18.7 Programming
823