Siemens SINUMERIK 840D Description Of Functions page 256

4 Data Descriptions
4.3 Interface signals
109
SN4 - SN4 +
110 Reserved Reserved
111 STOP_C STOP_D
active active
Note:
DB 31 / 32 / 33 ... contains the interface signals for axis/spindle 1 / 2 / 3 ...
4.3.2 Description of the interface signals
Description of the signals sent to the monitoring channel
SGE These signals are used to select/deselect the SBH and SG functions.
SBH/SG de-selection
Table 4-4
SBH de-selection
SGE This signal provides the NC monitoring channel with feedback as to whether
status pulses the pulses were cancelled during the test stop.
cancelled
(only for an axis)
SGE By combining these signals, it is possible to select the speed limit value for
SG1, 2, 3 or 4 when the SG function is activated.
SG selection, bits 1, 0
Tabelle 4-5
4-256
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Cam signals of plus and minus cams
SN3 - SN3 +
SGA (signals from drive)
n < n SG active (from SW4.2)
x
(from Bit 1
SW4.2)
STOP_C STOP_A/B
active active
Selection/de-selection of SBH and SG
SGE
SBH/SG SBH
de-selection de-selection
= 1 x
= 0 = 0
= 0 = 1
x: Signal state optional
Selection of speed limit values for SG
SGE
SG selection SG selection
Bit 1 Bit 0
= 0 = 0
= 0 = 1
= 1 = 0
= 1 = 1
SN2 - SN2 +
Bit 0 Reserved
Reserved Reserved
Meaning
SBH and SG are deselected
SBH is selected
(refer to Chapter 3, "Safe operating stop (SBH)")
SG is selected
Meaning
Speed limit value for SG1 is selected
Speed limit value for SG2 is selected
Speed limit value for SG3 is selected
Speed limit value for SG4 is selected
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11.03
SN1 - SN1 +
SBH active
(from Reserved
SW4.2)
Reserved Reserved