Siemens SINUMERIK 808D ADVANCED Operating Instructions Manual page 379

Signal state 1
Signal state 0
Application
Special cases, errors, ... If the IS "Axis / spindle disable" is active, then the interface signals:
corresponding to ...
Note for the reader
Siemens Controls
Parameter Manual
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
Axis disable;
If the interface signal "Axis disable" is output - for this axis - no more
setpoints are output to the position controller; the axis travel is therefore
disabled. The position control loop remains closed and the remaining
following error is reduced to zero. A moving axis is stopped with a ramp
stop.
If an axis is moved with axis disable the actual value position display shows
the setpoint position and the actual velocity value display shows the setpoint
velocity even though the machine axis is not actually moving.
With a RESET the position actual value display is set to the real actual value
of the machine.
Travel commands continue to be output to the PLC for this axis.
If the interface signal is canceled again the associated axis can again
traverse normally.
Spindle disable:
If the interface signal "Spindle disable" is issued, then for this spindle no
more setpoints are output to the speed controller in the open-loop controlled
mode or to the position controller in positioning mode. The movement of the
spindle is thus disabled. For a rotating spindle, the spindle is stopped
corresponding to its acceleration characteristic.
The speed actual value display displays the speed setpoint value.
Spindle disable can only be canceled per "Reset" or with M2 followed by a
program restart.
The position setpoint values are transferred to the position controller
cyclically.
The speed setpoint values are transferred to the speed controller cyclically.
Cancellation of the "Axis / spindle disable" does not take effect until the axis
/ spindle is stationary (i.e. an interpolation setpoint is no longer present).
The interface signal "Axis / spindle disable" is used when running-in and
testing a new NC part program. In so doing, the machine axes and spindles
should not execute any traversing or rotational movement.
DB380x DBX2.1 (controller enable),
DB380x DBX4.3 (feedrate / spindle stop) and where relevant
DB380x DBX1000.0/.1 (hardware limit switch)
are ineffective with reference to braking the axis / spindle.
The axis / spindle can however be brought into the "follow up" or "hold" state
(see DB380x DBX1.4 (follow-up mode)).
For response together with synchronized operation, see:
/FB2/ Function Manual Basic Functions; Expanded Functions;
Synchronized Spindle (S3)
DB3300 DBX1.7 (program test active)
Function Manuals
Detailed descriptions of interface signals
4.8 Axis / spindle-specific signals
379