Cycles
9.17 Selection of the grinding wheel peripheral speed - CYCLE446
Cylindrical grinding
Programming and Operating Manual, 07/2009, 6FC5398-4CP10-2BA0
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9.17 Selection of the grinding wheel peripheral speed - CYCLE446
Programming
CYCLE446(SUG)
Parameter
Table 9- 14 Parameters of CYCLE446
Parameter Data Type Meaning
GWPS REAL Value of the grinding wheel peripheral speed
Function
This function is used to switch on the grinding wheel at a desired peripheral wheel speed,
including the testing of the max. peripheral wheel speed and RPM. If the speed is exceeded,
a message is issued (no alarm). The value is limited to the respective maximum value. This
is checked for all wheels that are mounted on the spindle (wheels of a set). A setup menu is
also required in order to obtain an overview of the wheels used.
Checking and calculation is performed on the currently largest diameter of the wheels. This
is a purely calculated monitoring function. Internally, no limitations are set that implement
reliable monitoring. This must be ensured by the user.
For machines without NC spindles, it is possible to use a computation of the necessary
speed with a spindle number ≤ 0 if the cycle CYCLE425 is available. In this case, the
CYCLE425 receives the computed and limited speed. At this point, the user can give this
speed to groups or directly to an external actuator (M functions, etc.). The user must then
assign the speed set, which may deviate from the required speed, to parameter
_GC_PARR[5]. In this way, the dressing cycle can compute, for example, the necessary
dressing feedrate in mm/rev using the correct speed.
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