11.03
3 Safety-Related Functions
3.5 Safely-reduced speed (SG)
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
3-109
Table 3-37
Assignment between active gear stage/gear ratio selection
Selection and checkback of
active gear stage
Assignment between ratio
selection for NCK and
PLC/drive
Spindle
motor/
load
SGE gear ratio selection
Gear
stage
E1 E2 A1 A2 Bit
2
Bit
1
Bit
0
1
0 0 0 0 0
0
0
4
:
1
2
0 1 0 1 0
0
1
2,5
:
1
3
1 0 1 0 0
1
0
1,6
:
1
4
1 1 1 1 0
1
1
1
:
1
•
Input assignment of gear ratio selection
Table 3-38
Supplying the machine data for the SGEs for 840D
Signal
Assignment
SGE/SGA Name
MD
No.
Value
SGE
Gear ratio selection, bit 0
36974[0]
01 05 03 01
SGE
Gear ratio selection, bit 1
36974[1]
01 05 03 02
Table 3-39
Entering gear ratios into machine data
Setting 840D
611
digital
MD No.
Value
MD No.
Value
Denominator 1
36921
[
0
]
10 1321.0 10
of 2
36921
[
1
]
10 1321.1 10
gearbox 3 36921
[
2
]
10 1321.2 10
encoder/load 4
36921
[
3
]
10 1321.3 10
Numerator 1
36922
[
0
]
40 1322.0 40
of 2
36922
[
1
]
25 1322.1 25
gearbox 3 36922
[
2
]
16 1322.2 16
encoder/load 4
36922
[
3
]
10 1322.3 10
