Siemens SINUMERIK 840D sl Function Manual page 102

Safety Functions Integrated in the System/Drive
6.1 Safe standstill (SH)
6.1.1 Shutdown 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
Shutdown path
NCK
MM
(Motor Module)
Fig. 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.
6-102
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
ext. SGA
ext. SGE
Safe
programmable
logic (SPL)
cycl. SI data
(including
SGE/SGA,
CDC data)
Cycl. Data for SI,
integrated in the
drive (CDC, ...)
Pulse cancellation
 1
SGE/SGA
Drive
Motion Monitor
Pulse
cancellation
 1
Drive (CU)
SI, integrated
in the drive
Drive (MM)
SI, integrated
in the drive
© Siemens AG, 2006. All rights reserved
03.06
Optional:
SH/SBC selection
via terminal
Shutdown path CU
Pulse cancellation
Shutdown path MM
Pulse cancellation
Optional:
SH/SBC selection
via terminal