Siemens SINUMERIK 828D Function Manual page 1337

Speed default
Speed defaults from part program, FC18 or synchronized actions are written to the following setting data from all
the usual sources:
SD43200 $SA_SPIND_S (speed for spindle start via PLC interface)
The setting data can be written to as follows:
• Through speed programming
• Through direct programming in the part program
• Through HMI software
Note
The setting data is written immediately and asynchronously to part-program execution.
The following conditions apply when writing:
Programming through:
Speed programming
Direct programming in the part
program
HMI
Gear stage change and effect on speed
In the current version, no gear stage change is triggered if the setpoint speed is out of the speed range of the
gear stage (exceptions, see "M40: Automatic gear stage selection for speeds outside the configured switching
thresholds [Page 1351]"). The usual speed limitations and the speed increase to the setpoint speed are active.
Setpoint speed for JOG
For the following MD configuration:
MD35035 $MA_SPIND_FUNCTION_MASK bit 5 = 1
the content from SD43200 $SA_SPIND_S is active as setpoint speed for JOG.
You can use the JOG keys to operate the spindle at the speed defined in SD43200.
If the content is zero, other JOG speed definitions are active
(see SD41200 $SN_JOGSPIND_SET_VELO).
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Conditions:
• MD35035 $MA_SPIND_FUNCTION_MASK Bit 4 = 1 must be set.
• Constant cutting rate G96, G961 must not be active.
• The following NC/PLC interface signal must be set:
DB31, ... DBX 84.0 = 0 (constant cutting rate is active)
A programmed S-value and the value of the directly written SD can
be outdated with respect to time. If this is the case, after
programming the SD, the statement STOPRE should be executed.
Only positive values including zero can be accepted. Otherwise, a
corresponding message is generated.
S1: Spindles
16.7 Programming
1337