Entering The Spindle Speed Type For The Master Spindle (Sd43206) - Siemens SINUMERIK 840D Function Manual

S1: Spindles
18.7 Programming
System of units
When writing the setting data, the value is interpreted corresponding to the following secondary
conditions:
● Writing via NC program or synchronized action:
– G700 active: feet/min
– G710 active: m/min
– G70, G71 active: Depending on the setting in MD10240
● Writing via SINUMERIK Operate:
– Depending on the setting in MD10240 $MN_SCALING_SYSTEM_IS_METRIC
● Writing via FC18:
– Function number 10: "constant cutting rate (m/min)"
– Function number 11: "constant cutting rate (feet/min)"
Reading via system or OPI variable
In the NC program, synchronized action or HMI, the currently entered setpoint for the constant
cutting rate can be read using the following system data:
System variable
$P_CONSTCUT_S
$AC_CONSTCUT_S
18.7.4.6

Entering the spindle speed type for the master spindle (SD43206)

Definition of the spindle speed type for the master spindle from part program, FC18 or
synchronized actions are written to the following setting data from all the usual sources:
SD43206 $SA_SPIND_SPEED_TYPE (spindle speed type for spindle start via PLC interface)
The value range and functionality correspond to the 15th G group (feedrate type).
Permissible values are G values: 93, 94, 95, 96, 961, 97 and 971.
Depending on the setting, for DB31, ... DBX30.1/2 (spindle start, clockwise/counter-clockwise)
either the speed from SD43200 $SA_SPIND_S or the cutting speed from
SD43202 $SA_SPIND_CONSTCUT_S is active:
93, 94, 95, 97 and 971:
96 and 961:
824
$MN_SCALING_SYSTEM_IS_METRIC
OPI variable
---
acConstCutS
Meaning
Last programmed cutting rate
Actual constant cutting rate
The master spindle is started with the speed from SD43200.
The speed of the master spindle is obtained from the specified
cutting rate (SD43202) and the radius of the transverse axis.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA