Detailed Description
2.3 Configurable gear adaptation
Spindles (S1)
2-36 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
For more information about signal exchange between the PLC and NC, please refer to:
References:
/FB1/ Descriptions of Functions, Basic Machine; Various Interface Signals (A2)
Specify gear step in the part program
In the case of M40, the spindle must be in open-loop control mode for automatic gear step
selection with an S value. The gear step change is otherwise rejected and alarm 22000
"Gear change not possible" is output.
Automatic selection with active M40
The gear step is automatically selected by the control. The control checks which gear step is
possible for the programmed spindle speed (S value).
If the suggested gear step is not the same as the current (actual) gear step,
NC/PLC IS:
DB31, ... DBX82.3 (change gear)
and
DB31, ... DBX82.0-82.2 (set gear step A to C)
are set.
While the appropriate gear step is being determined, a gear step change is only requested if
the new speed is not within the permissible speed range of the active gear step.
If necessary, the speed is limited to the max. speed of the current gear step or increased to
the minimum speed of the current gear step, and NC/PLC IS:
DB31, ... DBX83.1 (setpoint speed limited)
is set.
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