Parameter Manual
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
387
Detailed descriptions of interface signals
4.8 Axis / spindle-specific signals
Signal state 0 This machine axis is neither assigned to handwheel 1 nor 2.
Application The PLC user program can use this interface signal to interlock the
influence on the axis by turning a handwheel.
corresponding to ... IS "Handwheel 1/2 active" (DB390x DBX4.0/.1)
Note for the reader Function Manual Basic Functions H1
DB380x
DBX4.3
Feedrate stop / spindle stop (axis-specific)
Signal(s) to axis / spindle (PLC → NCK)
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 The signal is active in all modes.
Feedrate stop:
• The signal triggers a feedrate stop for the axis. For a traversing axis, this
signal brings it to a standstill with a controlled braking (ramp stop). No
alarm is output.
• The signal triggers a "feedrate stop" for all path axes interpolating
relative to each other when the "feedrate stop" is activated for any one of
these path axes. In this case, all the axes are brought to a stop
maintaining the path contour. When the feedrate stop signal is
withdrawn, execution of the interrupted parts program is resumed.
• The position control is kept, i.e. the following error is eliminated.
• If a travel request is issued for an axis with an active "feedrate stop",
then this is kept. This pending travel request is executed directly when
"Feedrate stop" is withdrawn.
If the axis is interpolating in relation to others, this also applies to these
axes.
Spindle stop:
• The spindle is brought to a standstill along the acceleration
characteristic.
• In the positioning mode, when the "Spindle stop" signal is set positioning
is interrupted. The above response applies with respect to individual
axes.
Signal state 0 Feedrate stop:
• The feedrate is enabled for the axis.
• If a travel request ("travel command") is active when the "feedrate stop"
is withdrawn, this is executed immediately.
Spindle stop:
• The speed is enabled for the spindle.
• When "spindle stop" is withdrawn, the spindle is accelerated to the
previous speed setpoint with the acceleration characteristic or, in the
positioning mode, positioning is resumed.
Application Feedrate stop:
The traversing motion of the machine axes is not started with "feedrate
stop", if, for example, certain operating states exist at the machine that do
not permit the axes to be moved (e.g. a door is not closed).
Spindle stop:
In order to change a tool.
Note for the reader Function Manual Basic Functions V1
Siemens Controls
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