Siemens SINUMERIK 840D sl Function Manual page 1035

18.6.3 GWPS in all operating modes
General information
This function allows the constant grinding wheel peripheral speed (GWPS) function to be
selected for a spindle immediately after POWER ON and to ensure that it remains active after
an operating mode changeover, RESET or part program end.
The function is activated using machine data:
MD35032 $MA_SPIND_FUNC_RESET_MODE
(parameterization of GWPS function).
GWPS after POWER ON
A grinding-specific tool is defined via the following machine data:
MD20110 $MC_RESET_MODE_MASK
MD20120 $MC_TOOL_RESET_VALUE
MD20130 $MC_CUTTING_EDGE_RESET_VALUE
Note
MD35032 $MA_SPIND_FUNC_RESET_MODE
If the above machine data is set and a grinding-specific tool (tool type 400 to 499, MD20110,
MD20120, MD20130) is used with reference to a valid spindle (parameter $TC_TPG1), then
GWPS is activated for that spindle.
GWPS is deselected for all other spindles in this channel.
GWPS after RESET/part program end
After a RESET/part program end, GWPS remains active for all spindles for which it was
already selected.
Note
MD35032 $MA_SPIND_FUNC_RESET_MODE
If the machine data above is set and GWPS is active on RESET or part program end, then
GWPS remains active for this spindle.
If machine data:
MD35032 $MA_SPIND_FUNC_RESET_MODE is
not set and GWPS is active on RESET or part program end, then GWPS is deactivated for
that spindle.
GWPS is deselected for all other spindles in this channel.
Machine data:
MD35040 $MA_SPIND_ACTIVE_AFTER_RESET
can be set to determine whether the spindle continues to rotate at the current speed after
RESET.
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Grinding-Specific Tool Offset and Tool Monitoring (W4)
Constant grinding wheel peripheral speed (GWPS).
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