Safety Functions Integrated In The Drive; General Information About Sinamics Safety Integrated; Explanations And Terminology - Siemens Sinumerik 840D sl Function Manual

Safety Functions integrated in the drive

Note
This Chapter describes the safety functions that are integrated in the drive -- "Safe
Torque Off" (STO), "Safe Brake Control" (SBC) and "Safe Stop 1" (SS1), which are
controlled via the drive terminals. The safety functions SH and SBC from the
context of the safety--related motion monitoring functions are described in Chapter
6 "System/drive--integrated safety functions". The SS1 safety function essentially
corresponds there to STOP B. Control via terminals and from the motion
monitoring functions is in parallel and can be used independently of one another.
4.1

General information about SINAMICS Safety Integrated

4.1.1

Explanations and terminology

Note
The Control Unit is part of the NCU in general.
Two- -channel monitoring structure
All the main hardware and software functions for Safety Integrated are implemen-
ted in two independent monitoring channels (e.g. shutdown signal paths, data
management, data comparison).
The two drive monitoring channels are implemented using the following
components:
S via the Control Unit
S via the Motor Module/Power Module belonging to a drive
The monitoring functions in each monitoring channel work on the principle that a
defined status must prevail before each action is carried out and a specific feed-
back signal provided after each action.
© Siemens AG 2015 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
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