Siemens SINUMERIK 840D sl Function Manual page 145
Safety integrated
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Also See for SINUMERIK 840D sl:
- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
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Changing over an SG override
SG override values are changed over subject to the same conditions as those that apply to
speed limit values.
Changeover
From lower to
higher
From higher
to lower
Note: See Chapter "Selecting/deselecting safely reduced speed (Page 139)"
Note
Changing between SGEs "SG override selection, bits 3, 2, 1, 0" continuously and quickly may
initiate a STOP F.
Selecting an SG override
The active speed limit value (SG 1, 2, 3 or 4) is selected using SGEs "SG selection bits 1 and
0". The desired override is selected by combining SGEs "SG override selection bits 3, 2, 1 and
0". The override is only effective for the speed limit value for SG2 and SG4.
SG se‐
SG se‐
SG override
lection,
lection,
selection, bit
bit 1
bit 0
3
= 0
= 0
x
= 0
= 1
= 0
As above
= 0
As above
= 0
As above
= 0
As above
= 0
As above
= 0
As above
= 0
As above
= 0
As above
= 1
As above
= 1
As above
= 1
As above
= 1
As above
= 1
As above
= 1
As above
= 1
As above
= 1
= 1
= 0
x
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Description
Instantaneous
The time parameterized using MD36951/p9551 is started. The axis/spindle must be
braked within this delay time.
SGE
SG override
SG override
selection,
selection, bit 1
bit 2
x
x
= 0
= 0
= 0
= 0
= 0
= 1
= 0
= 1
= 1
= 0
= 1
= 0
= 1
= 1
= 1
= 1
= 0
= 0
= 0
= 0
= 0
= 1
= 0
= 1
= 1
= 0
= 1
= 0
= 1
= 1
= 1
= 1
x
x
Safety functions integrated in the system/drive
7.5 Safely reduced speed (SG)
SG override
selection, bit
0
x
Speed limit value for SG1 active
= 0
Speed limit value for SG2 active with
override stage 0
= 1
... with override stage 1
= 0
... with override stage 2
= 1
... with override stage 3
= 0
... with override stage 4
= 1
... with override stage 5
= 0
... with override stage 6
= 1
... with override stage 7
= 0
... with override stage 8
= 1
... with override stage 9
= 0
... with override stage 10
= 1
... with override stage 11
= 0
... with override stage 12
= 1
... with override stage 13
= 0
... with override stage 14
= 1
... with override stage 15
x
Speed limit value for SG3 active
Meaning
145
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