Interface Signals - Siemens SINUMERIK 840D sl Function Manual

Data Description

8.3 Interface signals

8.3 Interface signals
General information
The safety-relevant input and output signals (SGEs and SGAs) are signals that are
sent to and received from the system through two channels.
Caution
An error in the crosswise data comparison (STOP F, displayed using Alarms
27001, 27101 and onwards or F01711) only results in a subsequent STOP B/A
response, if at least one of the safety-relevant functions SBH, SG, SE or SN is
active. If only the function "n < nx" is active, this results in a crosswise comparison
error, but not in a subsequent STOP B/A response.
Note
The SGEs/SGAs in the drive monitoring channel are mapped in an area of the
NC/PLC interface (signals to/from the drive) and must be supplied in the PLC user
program.
As a result of the two-channel structure of Safety Integrated, the machine
manufacturer must supply the SGEs and SGAs in both the NCK monitoring
channel and the drive monitoring channel.
Unused SGEs must be set to a defined state.
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
© Siemens AG, 2006. All rights reserved
03.06