Siemens SINUMERIK 840D sl Function Manual page 366

Data Description
8.3 Interface signals
Description of signals from the monitoring channel
SGA SBH/SG active
This signal is used to signal the drive monitoring channel the status of the SBH and
SG functions as follows:
0 signal:
1 signal:
SGA status, pulses are cancelled (drive only)
After the shutdown path test has been initiated using the SGE test stop selection
or if a limit value is violated with a resulting STOP A response, this signal is output
to indicate that the drive pulses have been internally cancelled (refer to Chapter
6.1.1, "Shutdown paths").
0 signal:
1 signal:
SGA axis safely referenced
This indicates as to whether the relevant axis/spindle has been safely referenced
(see Chapter 5.4.3, "Axis states").
0 signal:
1 signal:
SGA SN1+, SN1–, SN2+, SN2–, SN3+, SN3–, SN4+, SN4–
These signals are used to indicate which of the plus or minus cams of cam pair 1,
2, 3 or 4 is "actuated".
0 signal:
Axis/spindle is located to the left of the cam (actual value < cam position)
1 signal:
Axis/spindle is located to the right of the cam (actual value > cam position)
SGA safe cam track
These signals are used to display whether the axis is located on a cam that is as-
signed to this cam track (this only applies to the "safe cam track" function).
0 signal:
The axis is not located on a cam of this cam track
1 signal:
The axis is located on a cam of this cam track
8-366
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
SBH/SG is not active
SBH/SG is active
Pulses are enabled
Pulses are cancelled
Axis is not safely referenced
Axis is safely referenced
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05.08