S1: Spindles
16.4 Configurable gear adaptation
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
1299
NC stop during gear stage change
The spindle cannot be stopped with NC/PLC IS:
DB21, ... DBX7.4 (NC stop)
if:
• the spindle is not yet in oscillation mode for the gear stage change.
• NC/PLC IS:
DB31, ... DBX16.3 (Gear changed)
is not set.
Spindle response after a gear stage change
How the spindle behaves once the gear stage has been changed depends on the following initial conditions:
• If the spindle was in the stop state before the gear stage change (M5, FC18: "Stop rotate spindle"), in
positioning or axis mode, M5 (spindle stop) is active after completion of the gear stage change.
• If a direction of rotation
(M3, M4, FC18: "Start spindle rotation"), then the last speed and direction of rotation will become active again
after the gear stage change. In the new gear stage, the spindle accelerates to the last spindle speed
programmed (
S...
).
• If position control was active before the gear stage change (
SPCON
), then it is reactivated after the gear stage
change.
The next block in the part program can be executed.
Special features
The following points must be observed on gear stage change:
• The gear stage change is not terminated by selecting
NC/PLC IS:
DB31, ... DBX20.1 (Ramp-up switchover to V/f mode).
Setpoint 0 is output.
The gear stage change is acknowledged as usual
via the NC/PLC interface signal:
DB31, ... DBX16.3 (gear is changed)
Note
Options for aborting:
DB31, ... DBX2.2 (Delete distance-to-go/Spindle reset)
or
DB31, ... DBX16.3 (Gear changed)
with corresponding acknowledgment from actual gear stage:
DB31, ... DBX16.0-16.2 (Actual gear stage).
