Switch--Off Signal Paths - Siemens Sinumerik 840D sl Function Manual

Safety functions integrated in the system/drive
6.1 Safe standstill (SH)
6.1.1 Switch- -off signal paths
The interaction of the safety functions integrated in the drive and the motion moni-
toring functions (Motion Monitor) are shown in Fig. 6-1.
NCU
SGE/SGA
NCK
Motion Monitor
Switch--off
signal path
NCK
MM
(Motor Module)
Figure 6-1 Overview of the shutdown paths
Shutdown path of the monitoring channel, drive
The motion monitoring function in the CU signals the monitoring function integrated
in the drive in the CU that the pulses must be cancelled in the SI monitoring chan-
nel integrated in the drive.
6-112
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
ext. SGA
ext. SGE
Safe
programmable
logic (SPL)
cycl. SI data
(including SGE/
SGA, CDC data)
Pulse
suppression
cycl. Data for SI,
integrated in the
drive (CDC, ...)
Pulse suppression
² 1
SGE/SGA
Drive
Motion Monitor
STO/SBC/SS1 selection
via terminal
² 1
Drive (CU)
SI, integrated
in the drive
Drive (MM)
SI, integrated
in the drive
© Siemens AG 2015 All Rights Reserved
10/15
optional:
Shutdown path CU
Pulse suppression
Shutdown path MM
Pulse suppression
optional: STO/
SBC/SS1 selection
via terminal