Siemens SINUMERIK 840D Description Of Functions page 59

11.03
Start
Timer
"Pulses
disabled
status"
STOP A
SW
Fig. 3-2 Shutdown path of the drive CPU
Two options are available from SW 6.3.30 onwards:
Shutdown path of
NCK CPU
1.
2.
Pulse cancellation Pulse cancellation is initiated via the NCK SGE "test stop selection" (can also
via terminal 663 be initiated internally in the case of an error). The comparator uses the SGA
"enable pulses" to cancel the enabling command at module-specific terminal
663 on the 611 digital drive module. The cancelled state is signaled back to the
comparator in the NCK CPU via terminals AS1/AS2 of the drive module and the
SGE "pulses cancelled status". The SGEs/SGAs are assigned to the NCK HW
inputs/outputs via machine data.
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
SGE "Test stop-selection"
PLC
SGA "Pulses are disabled status"
Inputs/outputs
Drive closed-loop control
"Disable pulses" signal
Drive_IMP"
relay
"Pulses are
disabled status"
0V
signal
HW 0V
Via Terminal 663
Via internal pulse cancellation.
3 Safety-Related Functions
3.1 Basic mechanisms of SI functions
(via NCK/PLC interface)
AS1 AS2
Terminal 663
+5V
Safety
relay
0V
ABSCH_03.DS4
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