Siemens SINUMERIK 802S Start-Up page 147

Description of the input signals
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UPGMTURN supports only toolholders with a separate output for each position, i.e. abso-
lute encoders are not supported. I0.0 to I0.5 are linked with the toolholder. When using
versions with only 4 locations, the inputs I0.4, I0.5 must be marked as invalid inputs.
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With toolholders providing a "Toolholder clamped" signal, this signal should be connected
to I0.6; otherwise, I0.6 will be marked invalid.
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Each axis of the system requires hardware limit switches for both directions (+/-). The limit
switch signals are monitored from the NCK in all operating modes. In the event a limit
switch is overrun, all axes are stopped, and only the axis resulted in responding of the limit
switch can be traversed to the opposite direction in JOG mode.
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Referencing (delayed reference-point approach) requires a cam switch on the inputs I1.4
for the X axis and I1.5 for the Z axis. In addition, a reference-point switch (BERO) must be
connected to the NCK input (X20) to ensure that the reference point is set exactly (see
Start–up Guide).
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The drive ready signal is connected to input I1.6. As long as the signal is logic "0", alarm
700003 is output.
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The alarm input can be used for alarm signals from the machine tool, e.g. for temperature
monitoring relays or the like. The effect is the same as with EMERGENCY STOP - all axes
and the spindle are stopped.
UPGMTURN function keys on the machine control panel
#1
#4
#16
#22
Fig. 6-1
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#1: Reduce spindle speed <<
SINUMERIK 802S
6FC5 597–2AA00–0BP2 (01.02)
#3
#2
#5 #6
%
#18
#24
%
Keyboard layout
6.3 PLC user program for turning (UPGMTURN)
Technical Appendix
6-147