Siemens SINUMERIK 840D sl Function Manual page 166

Connecting Sensors/Actuators
7.1 Safety-relevant input/output signals
Table 7-1 Minimum SGEs/SGAs required
Function Minimum SGEs required
Safe operating SBH/SG de-selection
stop (SBH) Test stop selection (drive)
External stops
If gearbox stages are being used
Gear ratio selection, bit 2 (only if it is necessary to
select the ratio)
Gear ratio selection, bit 1 (only if it is necessary to
select the ratio)
Gear ratio selection, bit 0 (only if it is necessary to
select the ratio)
Safely-reduced SBH/SG de-selection
speed (SG) SBH de-selection
SG selection, bit 1 (only for SG changeover)
SG selection, bit 0 (only for SG changeover)
Test stop selection (drive)
External stops
If gearbox stages are being used
Gear ratio selection, bit 2 (only if it is necessary to
select the ratio)
Gear ratio selection, bit 1 (only if it is necessary to
select the ratio)
Gear ratio selection, bit 0 (only if it is necessary to
select the ratio)
Safe software SE selection (only for SE changeover)
limit switches Test stop selection (drive)
(SE) SBH/SG de-selection
(at least for test during commissioning [start-up])
External stops
Safe software Test stop selection (drive)
cams (SN) SBH/SG de-selection
(at least for test during commissioning [start-up])
External stops
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
Minimum SGAs required
SBH/SG active
Status, pulses cancelled
(drive)
STOP A/B, C, D, E active
(only if required)
SBH/SG active
Status, pulses cancelled
(drive)
STOP A/B, C, D, E active
(only where required)
active SG stage, bits 0, 1 active SG stage, bits 0, 1
(only where required)
SBH/SG active
Axis safely referenced
Status, pulses cancelled
(drive)
STOP A/B, C, D, E active
(only where required)
SBH/SG active
STOP A/B, C, D, E active
(only where required)
Axis safely referenced
SN1 –, SN2 –, SN3 –, SN4 –
(only where required)
SN1+, SN2+, SN3+, SN4+
(only where required)
Status, pulses cancelled
(drive)
© Siemens AG, 2006. All rights reserved
03.06