Signal state 0 The actual velocity of the axis or the actual spindle speed is greater than the
value specified in MD36060 (standstill / zero speed range).
If a travel command is present, e.g. for a spindle, then the signal is always
= 0 - even if the actual speed lies below that specified in MD36060.
If the IS "Axis / spindle stationary" is signaled and there is no closed-loop
position control active
for the spindle, then at the operator interface, an actual
speed of zero is displayed and with the system variable $AA_S[n] zero is
read.
Application
● Enable signal for opening a protective device (e.g. "Open door").
● The workpiece chuck or the tool clamping device is only opened when
the spindle is stationary.
● The
oscillation mode can be switched-in during gear stage change after
the spindle has been braked down to standstill.
● The tool clamping device must have been closed before the spindle can
be accelerated.
corresponding to ... MD36060 STANDSTILL_VELO_TOL
(maximum velocity / speed for signal "Axis / spindle stationary")
Note for the reader Function Manual Basic Functions S1
DB390x
DBX1.5
Position controller active
Signal(s) from axis / spindle (NCK → PLC)
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 The control signals that the position controller is closed.
Signal state 0 The control signals that the position controller is open.
If "controller enable" is withdrawn because of a fault or from the PLC user
program the position controller is opened and therefore the interface signal
"Position controller active" is set to a 0 signal.
Spindle
without position
control: Signal "Position controller active" is always
"0".
Application
● The IS "Position controller active" can be used as feedback signal for the
IS "Controller enable".
● The holding brake of a vertical axis must be activated as soon as the
position control is no longer active.
●
If a spindle has been technically designed/dimensioned for the purpose,
in the part program, it can be changed-over into the closed-loop position
controlled mode as spindle or as axis (with SPCON or M70). In these
cases, the interface signal "position controller active" is set.
Special cases, errors, ... The IS "Position controller active" is also set for simulation axes as soon as
MD30350 = 1.
corresponding to ... DB380x DBX2.1 (controller enable)
DB380x DBX1.5 (position measuring system 1)
MD30350 SIMU_AX_VDI_OUTPUT
(output of axis signals for simulation axes)
Note for the reader Function Manual Basic Functions S1
Detailed descriptions of interface signals
5.8 Axis / spindle-specific signals
Parameter Manual
Parameter Manual, 08/2015, 6FC5397-8EP40-0BA1 431
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